112 BRITISH ORTHOPTERA. 



]\JALK IMAGO (PL XI, fig. 3). --General colour dark 

 brown. Len</tit some 20 mm. Head black; mouth- 

 parts yellowish; a yellow ring round the insertion of the 

 antrninv, which are rather short. Pronotum black and 

 shining, with a pale yellowish anterior margin. Elytra 

 fully developed, yellow-brown, with a pale streak in 

 the mediastinal area and a dark streak anterior to it 

 near the base of the elytron. Wings fully developed, 

 anterior part similar in appearance to the elytra, the 

 remainder slightly smoky. Legs yellow-brown, heavily 

 spined. Abdomen dark above, sometimes ornamented 

 a little with marginal yellowish spots ; below, -to a 

 great extent of a deep russet tint. Cerci very short, 

 triangular. 



FEMALE IMAGO. Closely resembling the male as the 

 colour is the same, and elytra and wings are fully 

 developed, although the elytra are usually perhaps 

 rather shorter than in the male. The length in this 

 sex may be usually rather greater. 



NYMPH (PI. X, fig. 2).- -Very dark above, chiefly 

 russet below ; legs yellow-brown. A large specimen 

 had two transverse dorsal yellowish bands (connected 

 at their extremities) on the abdomen near the base, and 

 a single one near the apex. Brunner* thus describes 

 the nymph :-- u La larve est d'une forme ovale tres- 

 prononcee, en ce que son abdomen est beaucoup plus 

 large que le pronotum. Toute sa surface est brim 

 fonce et tons les bords sont finement liseres d'un brim 

 un peu plus clair ; la band testacee du bord anterieur 

 du pronotum, que Ton observe dans les individus 

 adultes, est effacee. Toute sa surface est luisante, a 

 1'exception des cinq derniers segments dorsaux de 

 1' abdomen, qui sont opaques et converts de points 

 eleves. Cette difference de texture donne a cette larve 

 un aspect particulier." 



OOTHECA. -I have not myself met with a specimen 

 of the ootheca of this cockroach, but Brunner* thus 



* 'Nouveau Systeme de Blattaires/ p. 278 (1865). 



