야산모메뚜기
Tetrix silvicultrix Ichikawa 1993

 

몸길이는 약 7-9 ㎜이며 갈색 또는 흑색이다. 앞가슴등판에 종종 2, 4 개의 흑점 무늬가 있다. 두정돌기는 돌출하며 겹눈 사이에서 함입한다. 뒷날개는 매우 짧으며 날개 가장자리가 곧다. 유충으로 월동한다.일본에도 분포한다.

 


암컷 (Female) 

 

Original description: Tetrix silvicultrix Ichikawa 1993

 

  Medium to large-sized. Head as in T. japonica. Fastigium of vertex slightly wider than eye width. Pronotum in frontal view weakly tectate, anterior margin truncate, and median carinae undulate behind the highest portion of pronotum (humeral area), slightly concave just before the humeral area laterally, and lateral carinae obsolete. Middle femora wider than visible part of tegmina, the other characters of legs as in T. japonica. Wings brachypterous, very short, not twice as long as tegmina. Ovipositor not so thick.
  
PL: ♀, 7.7-9.5 (8.48, n=18), ♂, 6.6-8.0 (7.17, n=22) ㎜. PW: ♀, 4.1-4.7 (4.56, n=18), ♂, 3.6-4.0 (3.95, n=22) ㎜. FL: ♀, 6.3-7.1 (6.83, n=18), ♂, 5.2-6.7 (5.94, n=22) ㎜.
  
Type series: Holotype ♀, Top of Mt. Rokko, Kobe, Hyogo Pref., 27. VII. 1986, A. Ichikawa leg. Paratypes: 11♀, 18♂, same data as for the holotype.
  
Biology. The species feeds on fallen leaves, univoltine and hibernates at middle stage of nymph. Adults occur in spring to early summer.
  Distribution. Japan (Honshu).
  Remarks. The species is close to T. bipunctata (Linnaeus, 1758), from North China, but differs from the latter by the larger body and the structure of head, especially in the narrow fastigium of vertex and the thinner antennae.

 

<참고문헌>

● Kim TW and Kim JI 2004. A taxonomic study of Korean Tetrigidae (Orthoptera: Caelifera: Tetrigoidea). Entomological Research 34(4): 261-267. 

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