Orthoptera28 species

Family Trigs and Ground Crickets (Trigonidiidae)

Trigonidiidae is a family in the order Orthoptera. Browse 28 named species recorded in this family, or open an individual profile for its available identification and natural-history information.

Species in Trigonidiidae (28)

Allard’s Ground Cricket

Allonemobius allardi

Closely related to A. fasciatus ; prefers dryer ground than that species.

Striped Ground Cricket

Allonemobius fasciatus

Identification: Morphology and song are identical to A. socius; the only way to distinguish the two is by allozyme assay or (in most cases) by range.

Gray Ground Cricket

Allonemobius griseus

Identification: Color with a grayish suffusion; face below the antennae very dark and shining; pronotum with long bristles; lateral margins of dorsal field of male tegmina narrowly yellow; hind femora fuscous-brown with numerous pale spots

Tinkling Ground Cricket

Allonemobius tinnulus

Identification: Reddish head; song of male slightly slower than that of A. allardi

Calusa trig

Anaxipha calusa

Identification: Male with distinctive dark maculation on tegminae Appears strongly differentiated from other North American species of Anaxipha by analysis of COI sequences (Walker & Funk 2014)

Chirping Trig

Anaxipha delicatula

Macropters (long-winged individuals) sometimes frequent at light but adults collected elsewhere usually short-winged.

Ruby Road Trig

Anaxipha hyalicetra

Identification: The only Anaxipha in Arizona. The male tegmina are broader than in any other species of the genus.

Columbian Trig

Cyrtoxipha columbiana

Identification: The only green trig in most of its range, except Florida. Eyes yellow to red.

Hebard's Trig

Falcicula hebardi

Identification: No tympanum on foretibia; male stridulatory area poorly developed; length of male less than 4 mm (smaller than any Anaxipha). "The immature individuals are considerably darker and more wine-colored than the adults, and are longitudina

mangrove ground cricket

Hygronemobius alleni

Identification: Hind tibia with 3 spines on each upper margin (other U.S. ground crickets have 4).

Wood Cricket

Nemobius sylvestris

Identification: Head black with pale Y-shaped marking.

Cuban Ground Cricket

Neonemobius cubensis

Despite the name, apparently rather widespread across the eastern U.S. Very small, with a high-pitched song, so may be undetected at many points where it occurs.

California ground cricket

Neonemobius eurynotus

Identification: Distinctive color pattern. Shortened wings and extremely short and heavy ovipositor.

Collared Ground Cricket

Neonemobius near-mormonius

Identification: Distinctive pattern is apparently unique and easy to recognize.

Sphagnum Ground Cricket

Neonemobius palustris

Often extremely common in the preferred habitat, but completely absent in adjacent forests/meadows. Can be collected by pressing down on the Sphagnum moss to flood the crickets out from their hiding places.