new Species of BIatti<la\ 37 



leng;tli, sutuml inar<;ins bhiok, anal vein deeply inijtresscMl, 

 mediastinal vein sending several Ijranelics to tlic niar'jin, 

 costals numerous. Wings dark castaneous, ulnar veiu with 

 nine branclu s. Alxlonien entirely black, except apical half 

 of subgenital lamina, which is tlavo-testaecous ; supra-anal 

 lamina triangular, produced ; subgenital lamina amjjlc, its 

 lateral margins shortly produced ; cerci black (mutilated). 

 Legs black ; front femora unarmed, mid femora with four 

 spines on posterior margin, none on anteri(n' margin ; hind 

 femora with two spines on posterior margin, none on anterior 

 margin ; genicular spines on second and third femora; formula 

 of apical spines = , ], 1. 



Total length 2GS mm.; length of body \7 mm. ; length 

 of tcgmina 23"8 mm. ; pronotum G mm. x 8-5 mm. 



Yarimaguas, Peru {Salle, 188G) ; one example (Paris 

 Museum). 



This species, that described below, and N. crassicornis, 

 Burm., should probably be included in a new genus, charac- 

 terized by the incrassated antennae, shape of the pionotum, 

 and sparse armature of the femora. 



Nyctibora niyroclncta, sj). n. 



cJ . Head entirely black ; antennje black, except apical 

 joint, which is castaneous, incrassated, pubescent. Pronotum 

 as in the preceding species, but with the lateral and posterior 

 margins slightly reflected and with a very scanty recumbent 

 pubescence, yellow, with a shield-shaped black mark on the 

 disk. Tegmina long, coriaceous at base and reticulate, not 

 pubescent ; four branches to the mediastinal veiu, costals 

 numerous ; colour yellow, radial vein at base, a broad streak 

 on sutural margin of anal field, a broad band from near the 

 costal margin to the sutural margin in the apical third, black; 

 apex castaneous. Wings fusco-castaneous ; a broad pre-apieal 

 yellow band ; costals irregular, six branches to the ulnar vein. 

 Abdomen black above and below; supra-anal lamina tri- 

 angular ; subgenital lamina produced, very convex, with two 

 styles ; cerci black. Legs black ; front femora with no spines 

 beneath ; mid femora with three to four spines on posterior 

 margin, none on anterior margin ; hind femora with live 

 spines on posterior margin, none on anterior margin ; geni- 

 cular spines on the mid and hind femora; formula of apical 

 spines % ], }. 



? . Similar to c? , but rather larger, the black band ex- 

 tending right across the tegmina, castaneous apex of tegmina 

 more extended, subgenital lamina as in N. bicolor, milii 



