Trigonidiidae
Guides
Allonemobius griseus
Gray Ground Cricket
Allonemobius griseus, commonly known as the Gray Ground Cricket, is a small cricket species in the family Trigonidiidae. Originally described as Nemobius griseus by Walker in 1904, it was later transferred to the genus Allonemobius. The species is documented from multiple U.S. states and Canadian provinces, with iNaturalist observations indicating established populations in the field. Like other ground crickets, it is likely associated with ground-level vegetation and leaf litter habitats.
Allonemobius sparsalus
Allonemobius sparsalus is a small cricket species described by Fulton in 1930, currently treated as a synonym within the genus Allonemobius (family Trigonidiidae). The species has been recorded from coastal and southeastern United States localities. Like other members of Allonemobius, it belongs to a group of ground-dwelling crickets often associated with moist or grassy habitats. The taxonomic status of this name requires verification against current revisions of the genus.
Allonemobius tinnulus
Tinkling Ground Cricket
Allonemobius tinnulus, commonly known as the tinkling ground cricket, is a small cricket species in the family Trigonidiidae. It is native to eastern North America and produces a distinctive high-pitched, tinkling song. The species was originally described as a subspecies of Nemobius fasciatus before being elevated to full species status. It inhabits forest floor environments and leaf litter.
Anaxipha calusa
Calusa Trig
Anaxipha calusa is a species of winged bush cricket (family Trigonidiidae) described by Walker & Funk in 2014. The specific epithet 'calusa' references the Calusa people, an indigenous group historically inhabiting southwest Florida. This species belongs to the genus Anaxipha, which comprises small, often colorful crickets commonly known as 'trigs.'
Anaxipha delicatula
chirping trig
Anaxipha delicatula, commonly known as the chirping trig, is a species of winged bush cricket in the family Trigonidiidae. It was first described by Scudder in 1878 and is native to North America. The species belongs to a group of small, often colorful crickets known as "trigs" that inhabit vegetation and produce characteristic chirping sounds.
Anaxipha fultoni
Fulton's Trig
Anaxipha fultoni is a small cricket species in the family Trigonidiidae, commonly known as Fulton's Trig. Described in 2014, it belongs to a genus of ground and bush crickets distributed across tropical and subtropical regions. The species is known from Florida and represents part of the diverse cricket fauna of the southeastern United States. Like other members of its genus, it is likely a small, active cricket associated with vegetation.
Anaxipha hyalicetra
Ruby Road Trig
A sword-tailed cricket described in 2019 from southeastern Arizona near the Mexico border. It is the only North American Anaxipha species with broad, glassy tegmina. The species name 'hyalicetra' references the translucent wing membrane.
Anaxipha imitator
Cuban trig
Anaxipha imitator, commonly known as the Cuban trig, is a species of cricket in the family Trigonidiidae. It was originally described by Saussure in 1878 as Cyrtoxiphus imitator before being transferred to the genus Anaxipha. The species is part of the diverse Grylloidea superfamily, which includes many small, often colorful crickets commonly referred to as 'trigs.'
Anaxipha rosamacula
Pink-spotted Trig
A small cricket species in the family Trigonidiidae, described from Florida in 2014. The common name refers to distinctive pink markings on the body. Like other members of the genus Anaxipha, it is a tiny, active cricket associated with vegetation.
Anaxipha tinnula
Tidewater Trig
Small swordtail cricket described in 2014. Belongs to a genus of crickets distributed across eastern North America, with many species only recently described. Likely shares acoustic communication traits with congeners, including substrate-borne vibrational signaling.
Anaxipha tinnulacita
Fast-tinkling Trig
Anaxipha tinnulacita is a small swordtail cricket described in 2014 from eastern North America. Males produce both calling songs and distinct courtship songs when in the presence of females. This species exhibits substrate-borne vibrational communication through drumming behavior, which is unique among studied congeners in commonly occurring during calling songs.
Anaxipha vernalis
Spring Trig
Anaxipha vernalis is a small cricket in the family Trigonidiidae, commonly known as the Spring Trig. The species was formally described in 2014, distinguishing it from closely related congeners. It belongs to a genus of winged crickets distributed across the Americas, with this species occurring in eastern North America. The specific epithet 'vernalis' refers to its springtime activity period.
Eunemobius
Even-spurred Ground Crickets
Eunemobius is a genus of ground crickets in the family Trigonidiidae, established by Hebard in 1913. The genus is commonly known as Even-spurred Ground Crickets and contains at least four recognized species distributed across North America. These small crickets are part of the diverse ground cricket fauna and are characterized by features of their hind leg spurs.
Eunemobius carolinus
Carolina Ground Cricket
Eunemobius carolinus, the Carolina ground cricket, is a small orthopteran in the family Trigonidiidae. It is widely distributed across North America, with records from Alabama, Arizona, Arkansas, California, Colorado, and other states. The species was first described by Scudder in 1877 and includes three recognized subspecies. It inhabits ground-level environments typical of ground crickets.
Neonemobius eurynotus
California ground cricket, Bay Area ground cricket
Neonemobius eurynotus is a small ground cricket endemic to coastal California. It occurs primarily in the San Francisco Bay Area, where it inhabits terrestrial ground-level environments. The species was described in 1918 and remains poorly studied, with limited observational records available.
Neonemobius near-mormonius
Neonemobius near-mormonius is a small ground cricket in the family Trigonidiidae, characterized by its diminutive size and cryptic coloration. The species is part of a genus of tiny crickets commonly known as "ground crickets" or "pygmy crickets" that inhabit leaf litter and ground-level vegetation. Like other members of Neonemobius, it produces high-frequency calling songs that are often inaudible to unaided human hearing. The specific epithet "near-mormonius" suggests morphological similarity to N. mormonius, a closely related species with which it may be confused.
Neonemobius variegatus
Variegated Ground Cricket, Smaller Spotted Ground Cricket
Neonemobius variegatus is a species of ground cricket in the family Trigonidiidae, commonly known as the variegated ground cricket or smaller spotted ground cricket. The species is native to North America and has been documented in several eastern and midwestern U.S. states. Like other members of the genus, it occupies ground-dwelling habitats and is part of the diverse cricket fauna of the region. The specific epithet "variegatus" refers to its patterned or varied coloration.
Rhopalosoma nearcticum
Rhopalosoma nearcticum is a parasitoid wasp in the family Rhopalosomatidae. Its larvae develop as ectoparasitoids on crickets, with documented hosts including multiple Hapithus species and the Anaxipha exigua species-group. The species is found in the Americas from the United States to Brazil, though phylogenetic studies suggest at least two genetically distinct Rhopalosoma clades exist in America north of Mexico.
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