BLATTARI^. 53 



setulose, longer iban the liody ; joints fiom the tLird successively increasing 

 in length. Piothorax liansveisely subelli|itical, roughly rugulose ; fore 

 border truncated and reflexed or slightly hooded .; sides slightly angular in 

 the middle; hind border rounded. Pectus and abdomen siriooth ; subanal 

 lamina entire. Cerci long, linear. Legs slender; tibiae with short slender 

 spines; arolia very small. Win^s narrow, much longer than the body, 

 equal in length, nearly alike in structure. Fore wintjs semi -coriaceous; 

 costal area and anal area coriaceous ; axillary veins forked; intermediate 

 longitudinal veins entire; transverse sectors numerous. 



Female. Body elliptical, convex, roughly punctured. Head not 

 extending beyond the prothorax. Eyes small, far apart. Antennae 

 setulose, submoniliform, shorter thau the body; joints from the third 

 successively increasing in length. Prothorax truncate and vaulted in 

 front, widening from the fore border to the hind angles, which are 

 lengthened into two thick spines; fore border and sides reflexed, the latter 

 straight; hind border slightly rounded. Hind angles of the mesothorax 

 and of the metathorax somewhat prolonged. Abdomen wiih the hind 

 angles of the segments not prolonged; subanal lamina notched. Cerci 

 stout, subfusiform. Legs thick, moderately long ; tibiae with a few slender 

 spines. 



The extension of the hind angles of the mesothorax and of the meta- 

 thorax indicates that the insect here described has not attained its last 

 form. 



]. CaTARA RUGTCOLLIS. 



Mas. Nigra; caput mar gine antico lestaceo ; oculi rufi ; anlennce albo 

 bifasciatce ; alee per par um hyalince. 



Foera. Nigra, subtus subUliler punctula ; caput margine antico ferru- 

 gineo ; antenna albo bifascia Ice ; piothorax rugosus, margine pas tico 

 spinis crassis obtusis armalo ; segmentorum abdominalium anguli 

 poslici producti. Var. jS. — Prothorax antice minus fornicatus, caput 

 non oblegens, angulis posticii minus elongatis. 



Male. Black. Head and prothorax shining. Head testaceous about 

 the mouth and with a testaceous dot on each side adjoining the socket of 

 the anlennae. Eyes red. Antennae with two white bands, one before the 

 middle, the other near the tips. Pectus and abdomen dull, except the two 

 last segments of the latter. Soles of ihe tai'sal joints cinereous. Wings 

 very slightly hyaline. Length of the body 7^ — 8 lines; of the wings 24 — 

 25 lines. 



a. Sarawak. From Mr. Wallace's collection. 



b, c. Borneo. From Mr. Stevens' collection. 



d. ? From the Zoological Society's collection. 



Female. Black, dull, minutely punctured beneath. Head ferruginous 

 about the mouth. Sockets of the antennae and eyes tawny. Antennae with 

 two broad white bands, one at a litile before the middle, the other near the 

 tip. Prothorax with a rugose disk ; hind border armed with thick obtuse 

 spines. Hind border of the abdominal segments beset with thick obtuse 

 and very short spines. Length of the body 10 lines. 



e,f. Sarawak. From Mr. Wallace's collection. 



