\ 



A Century of Orthoptera. Decade V. — Forficulari^ 



(Exotic). 



41. Cylindrogaster nigra. Head black, minutely punctate, 

 somewhat tumid, thinly covered posteriorly with short castaneous 

 bristles; in front, opposite the upper base of the antennse, a pair of 

 tau-shaped smooth sulcations, their convexities inward, approach- 

 ing nearest each other above, and between them, and a little above, a 

 slightly transverse impression; niouth-jiarts I'eddish fuscous; antenna 

 dark reddish brown, the basal joint blackish, Px'othorax and meso- 

 thorax black, punctate, covered, especially next the borders, with 

 recumbent castaneous bristly hairs; the prothorax with a slight 

 median Impression on its anterior half, and on either side two short 

 similar longitudinal impressions from the front edge backward. 

 Femoi-a blackish, the distal extremity and the extreme Base of tibiae 

 luteous; rest of legs castaneous, darkest in middle of tibias. Abdo- 

 men black, covered beneath profusely, above scantily, with casta- 

 neous hairs, golden in a certain light; last segment angularly 

 produced a little above the base of each of the forceps; these are 

 short, conical, curved inward throughout, rather sharply pointed, 

 unarmed. Length of body, cxcl. forceps, 1 1 mm. ; length of forceps, 

 18 mm. Described from a single female from Para. 



Neither Stal nor Dohrn, the only writers who have treated of the 

 species of this genus, appear to have seen the female. In the one 

 above described, and another which I refer with some doubt to C. 



