INSECTS. HEMIPTERA. 57. Blatta. 527 



ORDER II. HEMIPTERA. 



Mouth and fnout bent in towards the breafl: 

 upper wings foft, femicrujlaceous, not 

 divided by aflraight future, the baje of the 

 left covering the inner margin of the bafe 

 ojthe right. 



57. BLATTA. Head infle&ed: antenna 

 fetaceous: feelers unequal, filiform: 

 wing-cafes and wings fmooth, fomewhat 

 coriaceous : thorax rather flat, orbicu- 

 lar, margined: legs formed for running: 

 abdomen terminating in 4 fpines or 

 briftles. Cock-roach. 



Thefe infefts with their larvae wander about by night and 

 fecrete themfelves by day; they are fond of warmth and;haim£ 

 houfes, devouring meal and whatever provifions they can get 

 at j they run with great celerity, and are deftroyed by the 

 fumes of charcoal. 



Gigantea. Livid ; fhield of the thorax with a fquare brown fpot. 



Inhabits America and J/ia. Seba. Muf. 3. tab. ?7»fig» I*« 

 The largeft of its genus, and is nearly as large as a hen's egg. 



Madera, Brown; thorax and wing-cafes livid variegated with brown. 



Inhabits Madeira. Herbji. Arch. Inf. tab. 49. fig. 3. 



Lefs than the laft. Head olive : antennae brown : Jhield livid 

 fpotted with brown: wing-cafes with 2 impreffed grooves at the 

 bafe, one ftraight the other curved, the tip marked with nu- 

 merous fmall tranfverfe brown lines. 



Occidentalis Thorax black with a pale edge all round and 2 fulvous dots 

 at the bafe: wing-cafes olive. 

 Inhabits American IJlands. 

 I Antennae piceous, the firft joint ferruginous: head glofTy -black: 

 mouth and (break between the antennae teftaceous: wing-cafes with 

 minute cinereous fpecks: abdomen with red fpots in the middle 

 and iefTer teftaceous ones at the fides : legs teftaceous. 



JEgyptlaca. 



