Nemobiinae

Saussure, 1877

ground crickets, pygmy field crickets

Genus Guides

6

Nemobiinae is a of small crickets in the Trigonidiidae, comprising approximately 200 worldwide. Members are commonly known as ground crickets or pygmy field crickets, typically measuring less than 15 mm in length. They are characterized by dense bristling on the and , variable wing lengths, and brown coloration suited for concealment in leaf litter. The group shows distribution with notable diversity in North America, Europe, Asia, Australia, and the Pacific.

Neonemobius cubensis by (c) Dilrukshan Priyantha Wijesinghe, some rights reserved (CC BY), uploaded by Dilrukshan Priyantha Wijesinghe. Used under a CC-BY license.Neonemobius cubensis by (c) Dilrukshan Priyantha Wijesinghe, some rights reserved (CC BY), uploaded by Dilrukshan Priyantha Wijesinghe. Used under a CC-BY license.Neonemobius cubensis by (c) Dilrukshan Priyantha Wijesinghe, some rights reserved (CC BY), uploaded by Dilrukshan Priyantha Wijesinghe. Used under a CC-BY license.

Pronunciation

How to pronounce Nemobiinae: /nɛ.moʊˈbaɪ.iˌneɪ/

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Images

Habitat

Members of Nemobiinae inhabit woodland, pastureland, and sandy beach environments. They occur in leaf litter and at the bases of plants where their brown coloration provides concealment. Some occupy specialized : Marinemobiini are associated with littoral environments in East Asia, Australia, and the Pacific; Dianemobius csikii inhabits sandy beaches.

Distribution

distribution with representation on all continents except Antarctica. Documented from North America (including Canada and the United States), South America, Europe, Africa, Asia (including China, Japan, and Southeast Asia), Australia, and Pacific islands. The includes regionally such as Burcini in the Horn of Africa and Asia, Grylliscini in central Asia, and Marinemobiini in East Asia, Australia, and the Pacific.

Diet

feeding habits have been documented.

Behavior

Some are active during the day. Males produce stridulatory songs for mate attraction; in Dianemobius csikii, three distinct song types have been observed: calling songs consisting of monotonous chirps, courtship songs with chirps and single-pulse ticks, and trill songs emitted just before copulation. Courtship duration is relatively prolonged, with females remaining with males for approximately 25 minutes while courtship songs are produced. Copulation occurs within 10–40 seconds following initiation of the trill song.

Similar Taxa

  • Gryllidae (sensu stricto)Nemobiinae are less robust than typical Gryllidae crickets and distinguished by dense thoracic and abdominal bristling, smaller body size (generally under 15 mm), and presence of three to four pairs of long movable spines above the abdominal tip.
  • TrigonidiinaeBoth belong to Trigonidiidae; Nemobiinae may be distinguished by specific spine arrangements on the and ovipositor , though precise distinctions require examination of genitalic characters.

Sources and further reading