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Tineidae
Tineidae
Tineidae
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Tineidae
Temporal range: 38–0 Ma Late Eocene to present
Adult European grain moth (Nemapogon granella: Nemapogoninae) from Graz, Austria
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Superfamily: Tineoidea
Family: Tineidae
Latreille, 1810
Type genus
Tinea
Subfamilies
and see text
Diversity[1]
About 357 genera and 2,393 species

Tineidae is a family of moths in the order Lepidoptera described by Pierre André Latreille in 1810. Collectively, they are known as fungus moths or tineid moths. The family contains considerably more than 3,000 species in more than 300 genera. Most of the tineid moths are small or medium-sized, with wings held roofwise over the body when at rest. They are particularly common in the Palaearctic, but many occur elsewhere, and some are found very widely as introduced species.

Tineids are unusual among Lepidoptera as the larvae of only a very small number of species feed on living plants, the majority feeding on fungi, lichens, and detritus. The most familiar members of the family are the clothes moths, which have adapted to feeding on stored fabrics and led to their reputation as a household pest. The most widespread of such species are the common clothes moth (Tineola bisselliella), the case-bearing clothes moth (Tinea pellionella), and the carpet moth (Trichophaga tapetzella); the brown-dotted clothes moth (Niditinea fuscella) despite its name, preferentially feeds on feathers in bird nests.

One remarkable genus is Ceratophaga, whose members feed exclusively on pure keratin in the form of the horns and hooves of dead mammals and even the shells of dead tortoises.

Systematics

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Subfamilies and notable genera

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Some species also are listed; for others see genus accounts.

Meessiinae

Myrmecozelinae

Tineinae

Genera incertae sedis

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These fungus moths have not been assigned to a subfamily with a reasonable amount of certainty:

Fossil record

[edit]

References

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Further reading

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[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia

Tineidae

View on Grokipedia
from Grokipedia
Tineidae is a family of small moths within the order , commonly known as fungus moths or tineid moths, encompassing over 3,000 species distributed across approximately 320 genera and 15 subfamilies worldwide. These moths are typically drab in coloration, with adults exhibiting narrow, rounded wings fringed with long hairs and a wingspan ranging from 6 to 20 mm, often holding their wings tent-like at rest. The larvae, which are the primary feeding stage, construct silken cases or webs, feeding on a diverse array of substrates including fungi, lichens, , dead plant material, and keratinous substances such as , , feathers, and . Belonging to the superfamily Tineoidea, Tineidae represents one of the most basal extant groups of Ditrysian , with a global distribution spanning all major biogeographic regions, including high levels of on islands. Ecologically, most species play a role by breaking down , though a few, such as the webbing clothes moth () and case-bearing clothes moth (), are notable household pests that damage textiles, stored products, and museum collections by consuming animal-derived fibers. The family's has been revised through molecular phylogenies and morphological studies, revealing diverse subfamilies like Tineinae and Erechtiinae, with ongoing challenges in classifying unassigned genera due to the group's understudied nature. Despite their small size and often nocturnal habits, Tineidae contribute significantly to in microhabitats like and nests, with larvae exhibiting specialized adaptations such as case-making for protection.

Description and morphology

Adult characteristics

Adult Tineidae moths are small to medium-sized, with wingspans typically ranging from 0.7 to 3.6 cm. Their wings are slender and elongated, often fringed with scales, and are held in a tent-like or roofwise position over the body at rest. The coloration is generally dull and mottled, featuring shades of tan, brown, and gray, though some species exhibit occasional metallic scales on the head or wings. The head is characterized by rough scaling, prominent labial palps that are often upturned and scaled, and reduced or absent ocelli. Antennae are typically filiform, approximately as long as the forewing, but bipectinate in males of certain subfamilies. The body is slender, with long legs featuring hind tibiae that bear erect, elongate scales and are spinose in some subfamilies. Many adult Tineidae possess a short haustellum () or lack one entirely, reflecting their non-feeding in contrast to the herbivorous or detritivorous habits of their larvae.

Larval and pupal stages

The larvae of Tineidae are characteristically small, elongate, and pale or white in coloration, featuring a hardened sclerotized head capsule, three pairs of well-developed thoracic legs for locomotion, and abdominal prolegs positioned on segments 3 through 6 and the terminal segment 10, which facilitate movement and attachment within their microhabitats. These morphological traits align with the typical eruciform of lepidopteran larvae, adapted for a detritivorous in concealed environments. In many tineid species, larvae exhibit case-building behavior, secreting silk from specialized spinnerets to construct portable cases or protective webs incorporated with substrate particles such as detritus, sand, or fibers, which provide concealment and structural support during development. This construction begins early in the larval instars and allows the larva to extend its head and thorax for foraging while the remainder of the body remains shielded. Variations in larval setation—patterns of sensory and structural setae across body segments—and spinneret morphology, including its length and shape, are key diagnostic features employed in tineid taxonomy for species differentiation. Tineid pupae are of the obtect type, with appendages closely appressed to the body, and are typically enclosed within silken cocoons often reinforced with larval or case materials for added protection. A cremaster, consisting of hooked structures at the posterior end of the , serves for attachment to the cocoon or substrate, stabilizing the pupa during the non-feeding metamorphic phase. Upon completion of pupation, adults emerge by rupturing the cocoon.

Distribution and habitat

Global range

The family Tineidae encompasses approximately 3,500 described species across about 320 genera, exhibiting a that spans all major biogeographical realms, including the Nearctic, Neotropical, Palearctic, Afrotropical, Oriental, and Australian regions, as well as various oceanic island groups in the Pacific, Indian, and Atlantic Oceans. This global presence is facilitated by both natural dispersal and extensive human-mediated transport, particularly for synanthropic pest species that thrive in urban and indoor environments worldwide. Highest species diversity occurs in tropical and subtropical areas, notably the Indo-Australian region, where numerous genera and subfamilies, such as Erechthias, display significant and radiation, especially on Pacific islands. Many subfamilies have native ranges centered in the Holarctic and Afrotropical realms, with ancestral lineages tracing back to these areas before expanding elsewhere. Endemic species are particularly prominent on isolated oceanic islands, reflecting adaptive radiations in insular environments. Human activities have accelerated the spread of certain tineids, rendering them truly cosmopolitan; for instance, the webbing clothes moth , originally from the Afrotropical region, was introduced to in the late via trade and subsequently to , where it now infests woolen goods in temperate urban settings across the continent. Similar patterns apply to other pest species, which have been inadvertently transported globally through commerce in textiles, stored products, and travel, establishing populations far beyond their native distributions.

Ecological preferences

Tineidae species predominantly favor dark, humid environments that provide shelter and moisture for their larval stages, including temperate forests, caves, bird and nests, and synanthropic stored product areas. In natural settings, many thrive in old-growth woodlands with high and limited exposure, such as those dominated by decaying and bracket fungi. Certain species, like Monopis crocicapitella, have been documented in ecosystems, where larvae exploit as a source. These moths exhibit strong associations with decaying , wood-decaying fungi, and animal-derived fibers in their natural habitats. Larvae of numerous Tineidae feed on fungal sporocarps, such as those of Fomitopsis rosea and Piptoporus betulinus, or keratin-rich like feathers and remains found under bark or in animal lairs. This saproxylic lifestyle underscores their role in breaking down persistent organic substrates, with preferences for moist, shaded microhabitats that retain humidity. The family's altitudinal distribution spans from to montane forests, encompassing both lowland and high-elevation woodlands up to alpine zones in regions like the and . While many species are restricted to mesic conditions, synanthropic taxa such as case-making clothes moths (Tinea spp.) extend into arid and sub-desert zones through human-mediated dispersal and habitation in protected indoor environments. Microhabitat preferences among Tineidae larvae are highly specialized, often targeting woolly or fibrous substrates in nests, leaf litter accumulations, or layers of organic debris. For instance, species like Tineola bisselliella develop successfully in bird nests containing mummified chicks or feather debris, requiring consistent moisture for optimal growth. Similarly, larvae in forest leaf litter or under bark exploit keratin and chitin from accumulated animal remains, favoring undisturbed, humid sites that shield them from desiccation and predators.

Taxonomy and systematics

Classification history

The family Tineidae was first established by in 1810 as part of the order , encompassing small moths often associated with fungal or detrital feeding habits. Early taxonomic treatments of Tineidae broadly included psychids (family Psychidae) and other tineoid groups, reflecting limited understanding of their distinct morphological and biological traits, such as the bagworm cases of psychids; these were gradually separated into independent families during the 19th and 20th centuries based on genital and wing venation differences. Key revisions advanced this delineation, including Lord Walsingham's 1881 monograph on North American Tineidae, which described numerous species and refined generic boundaries through detailed morphological analysis. Similarly, J.D. Bradley's contributions in the mid-20th century, particularly his studies on British Microlepidoptera, emphasized larval and genitalic characters to clarify Tineidae limits and separate it from psychids and related taxa. The advent of in the 21st century further refined Tineoidea boundaries, with Regier et al. (2015) analyzing multi-gene datasets (up to 19 nuclear genes, 14.7 kb) across 62 tineoid species to support Tineidae when excluding certain subfamilies like Dryadaulinae and Meessiinae, which were elevated to family status as Dryadaulidae and Meessiidae. This study also confirmed Tineidae's placement within the superfamily Tineoidea as the earliest-branching extant ditrysian lineage, though ongoing debates persist regarding the of some Tineidae subfamilies due to sparse sampling of certain genera and conflicting morphological signals.

Subfamilies and genera

The family Tineidae comprises approximately 15 subfamilies, encompassing more than 3,000 described species distributed across over 320 genera worldwide. These subfamilies are primarily differentiated based on morphological traits such as patterns in wing venation (e.g., the presence, absence, or fusion of veins like R1, R4, and R5) and structures in the male and female genitalia, including valva shape, signa, and clasping organs, which provide key diagnostic features for taxonomic placement. The type subfamily, Tineinae, is one of the largest within Tineidae, with more than 320 described species globally, many of which are associated with keratinous materials or detritus. Notable genera in Tineinae include Tinea (e.g., T. pellionella, the case-bearing clothes moth, known for larvae constructing protective cases from silk and debris), Tineola (e.g., T. bisselliella, the webbing clothes moth, infamous for infesting woolen fabrics with silken webs), and Monopis (case-bearing moths that often feed on bird nests or accumulated debris). Other prominent subfamilies include Hieroxestinae, characterized by tapered head profiles and genera such as Oinophila and Opogona, which include species linked to stored products and fungal growths; Acrolophinae, distinguished by specific forewing venation and featuring the genus Acrolophus with grass-feeding larvae; Erechthiinae, with genera such as Erechthias exhibiting varied wing patterns and cosmopolitan distributions; Nemapogoninae, represented by Nemapogon (e.g., the cork moth N. granella, a pest of stored grains); Scardiinae, with Scardia feeding on bookbindings and insect collections; and Setomorphinae, including Setomorpha rutella, known for bagworm-like cases. Additional subfamilies, such as Myrmecozelinae (93 species, often ant-associated), Harmacloninae (two genera, Harmaclona and Micrerethista, defined by unique leg scaling and venation), Teichobiinae, and Stathmopolitinae, contribute to the family's morphological and ecological diversity. Some genera within Tineidae remain , pending further phylogenetic analysis to assign them to specific subfamilies.

Genera incertae sedis

Within the family Tineidae, genera refer to those taxa whose precise placement within recognized subfamilies remains unresolved due to insufficient phylogenetic resolution. A catalog of the superfamily Tineoidea identifies approximately 119 such genera, comprising around 290 species, that cannot be confidently assigned based on available morphological and molecular data. The primary reasons for this uncertain status include the scarcity of type material or well-preserved specimens for many , reliance on archaic descriptions from the 19th and early 20th centuries that often lack detailed illustrations or comparative analyses, and the presence of conflicting or homoplastic morphological traits, such as variable wing venation or genitalic structures, that do not align clearly with synapomorphies. These challenges are compounded by the historical observed in some Tineidae subfamilies, as revealed by early molecular phylogenies. Representative examples of genera incertae sedis, pending further molecular data, include:
  • Crymodes
  • Euprora
  • Dyotopasta
  • Xylesthia
  • Corythophora
  • Pelecystola
  • Tineovertex
  • Doleromorpha
  • Amydria
Recent phylogenetic studies utilizing multi-gene datasets have offered provisional placements for select genera, aiding in taxonomic refinement. For instance, Euprora is tentatively positioned within the subfamily Erechthiinae, supported by bootstrap values of 93–95% in maximum likelihood analyses of 14 nuclear genes. Similarly, Doleromorpha shows affinities to Dryadaulidae but lacks confirmatory synapomorphies, maintaining its status pending additional evidence. These unresolved classifications have significant implications for Tineidae , emphasizing the necessity for expanded sampling in molecular phylogenies to address and integrate larval and ecological data. Ongoing revisions, informed by such approaches, are anticipated to reassign many of these genera, enhancing understanding of the family's evolutionary .

Biology and behavior

Life cycle

Tineidae moths undergo holometabolous , a complete developmental process typical of the order , consisting of four distinct stages: egg, , , and adult. This transformation allows for specialized adaptations in each phase, with the larval stage dedicated to growth and the adult focused on . The cycle begins with eggs laid by females, often in clusters on suitable substrates, hatching after 4 to 21 days depending on environmental conditions such as temperature and humidity. Higher humidity facilitates faster hatching, while lower levels can delay it. Larvae emerge and progress through multiple instars—typically 4 to 6, though up to 45 in some species—over periods ranging from several weeks to years, influenced by food availability and temperature. Pupation follows, lasting 8 to 50 days in a protective cocoon, after which adults emerge. Adults are short-lived, surviving 1 to 2 weeks, during which they mate and females deposit eggs before dying. The full life cycle duration varies widely; for instance, the common Tineola bisselliella completes development in 2 to 3 months under optimal warm and humid conditions (around 24°C and 70% relative humidity). Seasonal factors play a key role: in temperate regions, many species are univoltine, producing one generation per year with larval during winter to survive cold, whereas tropical populations are often multivoltine, allowing multiple generations annually without diapause. These variations ensure adaptability to diverse climates, with development accelerating in favorable warmth and moisture.

Feeding and foraging

The larvae of Tineidae exhibit diverse detritivorous and mycetophagous feeding habits, primarily consuming dead such as fungi, lichens, , and keratinous materials including , , feathers, and . This dietary specialization distinguishes them from most lepidopteran larvae, with only a minority feeding on living ; instead, many species target decayed substrates like rotting wood or bat . Some tineid larvae also exploit stored products, including grains and seeds, contributing to their role as occasional pests in human environments. Keratin digestion in tineid larvae, particularly in species like the webbing clothes moth (), relies on specialized enzymatic adaptations supported by symbiotic gut microbes. These bacteria, including strains of and members of Clostridiales and Lactobacillales, secrete cocktails of proteases (such as serine-type and metalloproteinases) and thiol-disulfide oxidoreductases that break down the disulfide bonds in , enabling nutrient extraction from otherwise indigestible proteins. Larvae preferentially feed on soiled or contaminated materials, where microbial activity enhances digestibility, and they often incorporate dirt, sweat residues, or associated fungi into their diet for optimal nutrition. Tineid larvae employ concealed foraging strategies to minimize predation and risks, typically directly into substrates like fabrics or or constructing portable cases lined with food particles for external feeding. These cases enlarge as the larvae grow and molt, allowing continuous access to food resources while providing protection; for instance, casemaking clothes moth (Tinea pellionella) larvae extend their cases as they chew through layers. Tineidae moths, in contrast, are largely non-trophic, depending entirely on larval reserves for energy during their short lives focused on , though rare instances of nectarivory occur in certain non-pest species with functional mouthparts.

Reproduction and development

In Tineidae, is primarily mediated by female-produced sex , which are released to attract conspecific males over short distances. Males possess pectinate or feathery antennae equipped with specialized sensilla that enhance detection of these volatile compounds, facilitating precise mate location even in low-light or cluttered environments typical of their habitats. is pronounced in antennal structure and overall body size, with males generally smaller and exhibiting more elaborate antennae compared to females, adaptations that support their role in pheromone sensing. Following mating, females seek out suitable oviposition sites, depositing eggs singly or in small clusters on substrates like woolen fabrics, fur, or accumulated organic detritus where larvae can access nourishment. A representative species, , lays 40–100 eggs over 2–3 weeks, with increasing at higher temperatures (e.g., up to 100 eggs at 30°C and 80% relative ). Development in Tineidae exhibits significant plasticity, particularly in the larval stage, where the number of can vary widely (e.g., 5–45 in T. bisselliella) in response to environmental factors such as temperature and . Warmer temperatures (20–30°C) accelerate developmental rates and reduce instar duration, while high supports survival by minimizing ; extreme conditions can bias sex ratios toward females in some species or prolong development. The overall life cycle, from to , typically spans 2–6 months under favorable indoor conditions.

Ecology and interactions

Ecosystem roles

Tineidae larvae function as essential decomposers in terrestrial ecosystems, specializing in the breakdown of recalcitrant keratinous materials such as fur, feathers, and hooves from animal remains, bird nests, and predator pellets. By digesting these otherwise persistent substances, which are rich in nitrogen and other nutrients, the larvae facilitate their mineralization and return to the soil, promoting nutrient cycling in forest floors, nest microhabitats, and detrital accumulations. For instance, species like Tinea occidentella feed exclusively on keratin in undigested prey remains within owl pellets, hastening pellet decomposition and preventing long-term accumulation of indigestible biomass. In addition to keratin degradation, many Tineidae larvae consume fungi and lichens, contributing to the decomposition of fungal biomass and aiding in the recycling of organic matter in humid, organic-rich environments such as woodlands and leaf litter. This mycophagous behavior supports ecosystem nutrient dynamics by breaking down fungal tissues that store significant carbon and phosphorus. Through their feeding, Tineidae larvae indirectly facilitate fungal spore dispersal; adults and larvae of certain species are attracted to hypogeous fungi like truffles (Tuber spp.), consuming spores and excreting viable ones in frass, which promotes fungal propagation in forest soils. Within food webs, Tineidae occupy a basal position in humid habitats, where their larvae and adults serve as prey for predators including birds, spiders, and predaceous , thereby transferring energy from to higher trophic levels. This role enhances trophic connectivity in nest and litter communities, supporting predator populations in organic-rich settings. Moth assemblages, including Tineidae, also act as indicators in moist, detritus-laden ecosystems, reflecting due to their sensitivity to , organic substrate availability, and disturbance in forests and similar biomes. Their presence and diversity signal intact cycling and microhabitat stability in these areas.

Predators and parasitoids

Tineidae larvae and adults serve as prey for various predators, contributing to their role in webs. Birds, particularly warblers such as the (Helmitheros vermivorus), consume larvae, often foraging for caterpillars in foliage or nests where exposed stages are vulnerable. Spiders, including web-building species, capture adult moths and wandering larvae, while prey on eggs and early larvae in exposed microhabitats like or . These interactions primarily target vulnerable life stages, limiting Tineidae in settings. Parasitoids exert significant pressure on Tineidae, with hymenopteran wasps from families , , and Eulophidae commonly attacking larval stages. Braconid wasps like Bracon hebetor (syn. Habrobracon hebetor) are gregarious ectoparasitoids that oviposit on larvae of the webbing clothes moth (), paralyzing and consuming the host internally, with high suitability demonstrated in host preference studies. Similarly, Apanteles carpatus (Braconidae) parasitizes case-bearing clothes moth () larvae, preventing pupation and emerging from the host. Ichneumonid wasps target lepidopteran larvae broadly, including Tineidae, via endoparasitism, while eulophids such as Baryscapus tineivorus specialize on textile-infesting tineids, laying eggs in larvae to develop as internal parasitoids. Tachinid flies () also parasitize Tineidae larvae, depositing eggs on hosts that hatch into maggots feeding internally, though less commonly documented for this family. Pathogenic microorganisms further regulate Tineidae populations, particularly in dense aggregations. Entomopathogenic fungi like infect larvae and adults through cuticle penetration, causing mycosis and mortality in crowded conditions, as observed in experimental exposures of T. bisselliella. Bacterial pathogens, including strains of , can induce septicemia in susceptible larvae under stress, though efficacy varies with host keratin-based diet; natural epizootics occur in overwintering populations. Tineidae larvae employ behavioral defenses, notably case-building in species like T. pellionella, where silken tubes incorporating debris provide and physical barriers against predators and parasitoids. These portable cases reduce encounter rates with and spiders by concealing the larva and deterring oviposition by wasps, enhancing survival in exposed feeding sites. Such adaptations underscore the family's vulnerability to antagonistic interactions while highlighting evolutionary countermeasures.

Economic and cultural significance

Pest species and damage

Among the most notorious pest species within the Tineidae family is Tineola bisselliella, commonly known as the webbing clothes moth, whose larvae primarily target keratin-rich materials such as , , , feathers, and . These larvae construct silken tubes or webs on the infested substrates while feeding, resulting in irregular holes, thinning of fabrics, and the accumulation of (fecal pellets) that contaminates textiles and can promote secondary mold growth under humid conditions. Another significant pest is Monopis crocicapitella, the pale-backed clothes moth, which infests stored products including wool carpets, grains, and other organic materials, particularly in high-humidity environments where it thrives optimally at around 93% relative humidity. Larval feeding by M. crocicapitella causes similar damage through chewing on fibers and creating silk-lined tunnels, leading to structural weakening and frass deposition that exacerbates contamination and potential mold issues in damp settings. The economic toll of these Tineidae pests is substantial, with T. bisselliella estimated to cause approximately $200 million in annual damage to wool-containing textiles as of the 1990s. Globally, infestations in museums, historic collections, and —such as damage to bananas and palms by species like Opogona sacchari (banana moth)—contribute to significant losses in vulnerable products, affecting industries valued in billions of dollars annually. Historically, Tineidae pests like the webbing clothes moth have been documented in literature since the , with the first explicit European references appearing around that time, likely due to introductions via colonial trade from their probable African origins, marking a shift in their recognition as indoor threats to s. Early mentions of clothes-damaging moths appear in and Roman texts, indicating long-standing cultural awareness of these pests in textile preservation.

Management and control

Preventive measures form the cornerstone of Tineidae management, focusing on denying access to food sources and breeding sites for pest species such as the webbing clothes moth (). Storing susceptible items like woolen fabrics, furs, and stored grains in airtight containers prevents larval infestation by blocking adult moths from laying eggs. Regular ing of infested areas, including cracks and under furniture, removes eggs and larvae, while disposing of the vacuum contents immediately limits reintroduction. fabrics at temperatures exceeding 120°F (49°C) or freezing items at -20°C (-4°F) for at least one week effectively kills all life stages without chemical residues, making these methods suitable for and settings. Monitoring with pheromone-baited sticky traps detects early infestations of male moths, enabling targeted interventions before widespread damage occurs. Chemical controls are employed judiciously within (IPM) frameworks that prioritize non-chemical options to minimize environmental impact and resistance development. Pyrethrins, derived from flowers, provide contact toxicity to adult moths and larvae when applied as sprays in infested areas, though they require reapplication due to short residual activity. (Bt) var. kurstaki targets larval stages by producing toxins that disrupt their gut upon ingestion, offering a selective biological effective against Tineidae caterpillars feeding on or materials. IPM strategies emphasize combining these with and physical barriers, reducing reliance on broad-spectrum chemicals like pyrethroids, which have shown variable efficacy against hidden larvae. Biological controls leverage natural enemies to suppress Tineidae populations sustainably. Releasing wasps such as Trichogramma evanescens targets eggs by ovipositing inside them, preventing larval emergence and breaking the reproductive cycle; field trials in historic buildings have demonstrated feasibility for conservators to apply independently, with potential for multi-cycle suppression over at least one year. These wasps are commercially available and integrate well with IPM, providing an eco-friendly alternative in enclosed spaces like wardrobes or storage facilities. Recent advances in the 2020s have expanded non-toxic options for Tineidae control. Essential oils from like eucalyptus () and lavender () exhibit repellent and oviposition-deterrent effects on adults, with vapor formulations showing promise in museum IPM by reducing infestation rates without harming artifacts; studies confirm higher repellency compared to citrus or oils. Genomic sequencing of T. bisselliella has enabled genetic monitoring for insecticide resistance markers, facilitating proactive resistance management through targeted surveillance of gene in populations.

Fossil record and evolution

Known fossils

The earliest known fossils of Tineidae date to the Middle Eocene, approximately 44 million years ago, primarily from deposits in the Prussian Formation. These inclusions preserve both adult moths and larval stages, including cases constructed from and incorporated , which are characteristic of tineid feeding habits on keratinous or fungal materials. Such larval cases represent only about 2% of all lepidopteran fossils in , highlighting their relative rarity despite the abundance of adult specimens. Numerous adult tineids from exhibit well-preserved wing venation, a key diagnostic feature for identification, with species such as Martynea rebeli and Palaeotinea rasnitsyni displaying reduced hindwing venation similar to modern tineids. Other notable Eocene specimens include Electromeessia zagulijaevi and Tineolamima aurella, both adults trapped in that reveal scale patterns and antennal structures. Larval fossils, like Glessoscardia gerasimovi, preserve body segmentation and case architecture, providing insights into early case-making behaviors. Fossils from later periods include larval and pupal remains of Tineidae from the Early phosphorites of , . These French deposits yield compression fossils emphasizing pupal . No confirmed Tineidae fossils have been reported from deposits, including Myanmar amber, though some lepidopteran impressions from that era have been tentatively linked to tineid relatives based on venation patterns.

Evolutionary insights

The origins of Tineidae trace back to the Early Cretaceous, as supported by molecular clock analyses, calibrated using ultraconserved elements and fossil constraints, which estimate the crown-group divergence of Tineidae at around 137.5 million years ago within the broader proliferation of Lepidoptera alongside flowering plants. Diversification within Tineidae intensified during the Paleogene, particularly in the Eocene, as revealed by amber inclusions that document the early evolution of larval case-building behaviors for protection in detrital environments. These fossils, primarily from Baltic amber deposits dated to the Lutetian stage (approximately 47.8–41.2 million years ago), illustrate a shift toward more specialized ecological roles, with case construction appearing as an ancestral trait in multiple lineages. Phylogenetically, Tineidae hold a basal position within the superfamily Tineoidea, representing the earliest-originating extant lineage of the megadiverse clade, which encompasses over 98% of all species. Adaptations to keratin-feeding, a hallmark of many tineid species, began as facultative traits but evolved into forms after the K-Pg boundary, facilitating exploitation of animal-derived resources like and feathers. Despite these insights, the Tineidae fossil record remains sparse and biased, with underrepresentation stemming from the soft-bodied larvae that rarely fossilize outside exceptional preservations; molecular clocks consistently suggest a richer, deeper history extending further into the than direct evidence indicates.

References

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