Acheta

Fabricius, 1775

house crickets, field crickets

Species Guides

Acheta domesticus(House Cricket)

Acheta is a of field crickets (Gryllidae) containing approximately 17 described , with Acheta domesticus (house ) being the most widely known and economically significant. The genus is distributed across the Palaearctic realm and North America, with A. domesticus achieving distribution through human activity. Species in this genus are characterized by their stridulatory communication, with males producing species-specific calling songs to attract females. The house cricket serves as a major source of animal feed, fish , and increasingly as human food, though its challenges from Acheta domesticus Densovirus (AdDNV).

Acheta by (c) Gianni Del Bufalo bygdb, some rights reserved (CC BY), uploaded by Gianni Del Bufalo bygdb. Used under a CC-BY license.

Acheta domesticus by (c) Gianni Del Bufalo bygdb, some rights reserved (CC BY), uploaded by Gianni Del Bufalo bygdb. Used under a CC-BY license.

Pronunciation

How to pronounce Acheta: /əˈkiːtə/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

Distinguished from similar Gryllus and Gryllodes by subtle differences in male genitalia and calling song characteristics. Acheta typically have more slender bodies than Gryllus field crickets. A. domesticus specifically lacks the four dark longitudinal stripes on the characteristic of Gryllus assimilis. The calling song of A. domesticus consists of chirps with 3-5 pulses at approximately 4-5 kHz, with syllable periods around 50-70 ms. Examination of the stridulatory file teeth and male genitalia structure may be required for definitive species identification within the genus.

Images

Habitat

Most occupy terrestrial including grasslands, meadows, and anthropogenic environments. A. domesticus is strongly associated with human dwellings, commercial rearing facilities, and greenhouses; it cannot establish persistent wild in tropical climates such as peninsular Florida. Other species occupy more natural settings in the Palaearctic and Nearctic regions.

Distribution

Native distribution spans the Palaearctic realm and North America. A. domesticus has achieved distribution through human-mediated transport and is now present globally in association with human habitation and commerce. -level distribution: A. angustiusculus, A. arabicus, A. brevipennis, A. chudeaui, A. confalonierii, A. gossypii, A. hispanicus, A. latiusculus, A. meridionalis, A. pachycephalus, A. pantescus, A. pulchellus, A. rufopictus, A. svatoshi, A. turcomanoides, and A. turcomanus have more restricted regional distributions in Europe, North Africa, the Middle East, and Central Asia.

Seasonality

Activity patterns vary by and latitude. In temperate regions, are active from late spring through autumn; in commercial rearing facilities, breeding occurs year-round under controlled conditions. A. domesticus completes multiple annually in favorable conditions.

Diet

, consuming plant material, decaying organic matter, and opportunistically small . A. domesticus has been documented feeding on corn contaminated with fumonisin mycotoxins without ill effects, excreting the toxin primarily in . In captivity, they accept grain-based feeds, vegetables, and commercial diets.

Life Cycle

Hemimetabolous development with , nymph (multiple instars), and stages. Females deposit eggs in moist substrate using needle-like ovipositor. Nymphs resemble adults but lack fully developed wings and reproductive structures. Development time varies with temperature and diet quality; under optimal conditions, A. domesticus can complete development in 6-8 weeks. Adults may live 2-3 months.

Behavior

Males produce -specific calling songs by stridulation (rubbing forewings together) to attract females; songs characterized by specific carrier frequencies (4-5 kHz) and syllable periods. Females exhibit positive phonotaxis toward male calls, with selectivity influenced by age, hormonal state ( III), and social experience. Both sexes demonstrate thigmotaxis (preference for contact with surfaces). Males may produce aggressive signals and courtship calls; same-sex courtship has been observed in laboratory conditions.

Ecological Role

Decomposers and nutrient cyclers in soil ; serve as prey for vertebrate and . A. domesticus has been observed to fragment weathered polystyrene foam into microplastic particles in laboratory studies, potentially contributing to plastic degradation in soil environments. In commercial settings, they function as converters of agricultural byproducts into protein .

Human Relevance

A. domesticus is extensively cultivated as feed for reptiles, amphibians, birds, and fish; used as fishing ; increasingly promoted for human consumption as an alternative protein source. Commercial production is a multimillion-dollar industry, though severely impacted by Acheta domesticus Densovirus (AdDNV) since the early 2000s. The virus has driven importation of alternative , raising concerns about establishment. Research interest in sustainable protein production, waste upcycling, and circular economy applications.

Similar Taxa

GryllusField crickets with similar general ; distinguished by more robust body, different calling song characteristics, and typically four dark stripes on (in G. assimilis). Gryllus generally occupy outdoor rather than human dwellings.
GryllodesIncludes G. sigillatus (tropical house cricket), which has replaced A. domesticus in some commercial operations due to AdDNV resistance; distinguished by smaller size, reduced wings, and different preferences.
TeleogryllusCommercially important in Asia; similar in general appearance but with distinct calling songs and geographic distribution.

Misconceptions

A. domesticus is frequently misidentified as a field cricket (Gryllus ) by the public. It is often assumed to be capable of establishing wild anywhere it occurs, but it cannot survive in tropical climates without human shelter. Sustainability claims regarding protein production have been overstated in popular media; research demonstrates that protein conversion depends heavily on feed quality and is comparable to poultry when fed grain-based diets.

More Details

Acheta domesticus Densovirus (AdDNV)

A parvovirus that has caused devastating in commercial rearing facilities since the early 2000s. The virus causes paralysis and death, is extremely to environmental extremes and decontamination efforts, and has driven industry-wide shifts toward alternative .

Nomenclatural note

ICZN Direction 46 (1956) established Acheta as masculine in gender, though some sources treat it as feminine. Specific epithets must agree with the gender determination.