igai] L. Chopard : Cavcrnicolons Orthoptera. 523 



Fam. GRYLLIDAE. 



Subfam. PHALANGOPSINAE. 



Gen. Arachnomimus, Sauss. 



Arachnomimus sp. 



Siju Cave, Garo Hills (R. Friel, Nov. 1917) ; two very young 

 examples, ct* and 9 . 



These very young specimens may belong either to one of the 

 known species or to a hitherto undescribed form ; their characters 

 which merely allow a recognition of the genus are as follows : — 



Length of body cf 8 mm., 9 5 mm. ; post. fem. & 6'5 mm. 

 9 4'5 mm. ; post. tib. cf y^ mm. 9 s mm. 



Yellowish brown, legss^^otted with fuscous, chiefly the posterior 

 femora ; face yellow ; maxillary pal]n with 3rd joint longer than 4th 

 and 5th longer than 3rd. Pronotum showing two large brown 

 impressions on the disc, lateral lobes with inferior margin strongly 

 ascending backward, meso- and metanotum almost uniform dark 

 brown. Posterior femora with 3 small internal spines and 3 lonsjer 

 and r very short external the latter quite near the apex ; external 

 spurs short, intermediate and supf^rior ones long, the latter shorter 

 than the former ; metatarsi very long. 



Appendix. 



Two species must be ascribed to the genus Tachvctnes, both 

 of them known only from the types in the Indian Museum collec- 

 tions ; one is new, the other having been very shortly described 

 hy me in Bull. Soc. ent. Fr. [igi8], p. 2^5. Although this latter 

 species is described from a specimen having lost its posterior 

 limbs, it is so very close to the other that there is little doubt 

 that they both belong to Tachycines ; they form a special group 

 in that genus characterized by rather stout shape and compara- 

 tively short legs. I give hereafter a full description of these two 

 species. 



Tachycines cryptopygius, Chopard. 



(PI. xxiii, fig>. 29—33 & 34B.) 



Diestrammena cryptopygia. Chopard, 1918, Bull. Soc. ent. Fr.. p 245; 

 1920. Rechcrches ^iir la confnrination et le devcloppuinenl des derniers 

 segfments abdominaux chez les Orthop'eres, p. 144, fig. 187 et i88. 



Diestrammena palpala (cf), Griffini, 1914, Aiti Soc. it. Sc. nat., I. Ill, 

 p. 30. 



Nemotha, Cachar (Assam) \ x & . 



A rather large-S'zed, brown-coloured species ; face with 4 longi- 

 tudinal brown bands ; anterior and intermediate femora darkened 

 near the apex and in the middle ; hair clothing little abundant. 



Head with occiput short, showing 4 longitudinal, indistinct, 

 lighter lines; vertex terminated in a rather narrow rostrum 

 furrowed and divided at apex, forming two rounded, smooth 

 tubercles ; face yellowish, presenting 4 longiiudinal brown bands. 



