BLATTA OEIENTALIS. 



95 



utensilia incolaruru ; rarius Stockholmise et alibi, noctu 

 prsedatur ; accensa caudela auf ugit ocyus. 

 DESCE,. Magiiitudo Grylli tota testaceo-fusca sen ferrugineo 

 nigricans et quasi usta. Clypeus tlwraci incumbens planus, 

 ovalis, transversalis. Elytra diaphana, abdomine breviora, 

 oyali-oblonga : singula tribus striis a basi exeuntibus, 

 quarum intermedia elevata : interior excavata, incurvata 

 conficiens cum pari spatium ovatum inclusum ; exterior 

 excavata juxta marginem, brevis ; striae absque ullo certo 

 ordine : cauda duobus mucronibus. Pedes aculeati. MAS 

 alas et elytra gerit. FJEMINA ejus tan turn rudimenta. 

 (C. Linnaeus, 'Faun. Suec.' p. 234. 1761.) 



MALE IMAGO (PI. X, fig. 4). --General colour almost 

 uniform dark brown- -nearly black. Lent/tit up to 



a b 



FIG. 16. Blatta orientalis Linnaeus, a, male ; b, female ( x abt. 1'5). 



about 25 mm. Antennae about as long as the body, 

 second and third segments about equal. Elytra dark 

 brown, covering:' some two-thirds of the abdomen, 



o 



somewhat truncate at the apex. Wings equalling the 

 elytra in length, anterior part brown, posterior 

 hyaline ; legs somewhat paler than the general colour, 

 well armed with spines. Supra-anal plate of abdo- 

 men nearly straight, posterior margin paler. Styles 

 present. 



FEMALE IMAGO (PI. X, fig. 3).- -General colour 



