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PERIPLANETA 



INSECT A. 



THE COCKROACH. (PERIPLANETA AMERICANA.) 



In P. orientalis the common species the wings are rudimentary in the female. In P. americana, both sexes have 

 wings. 



1. Dorsal or tergal aspect of a full grown male specimen pinned by the base of the legs. Head; 

 thorax ; abdomen ; antennae ; prothorax ; mesothorax ; metathorax ; mesothoracic wing, pinned forward ; 

 metathoracic wing, pinned forward, ist to yth abdominal segments or somites. Terga of the 8th 

 and gth somites overlapped by the yth. Tergum of the loth somite. Right and left styles attached 

 to sternum of the gth somite. Right and left jointed cerci anales attached to the tergum of the 

 loth somite. 



2. Dorsal aspect of female specimen. 



Look for the heart through the thin dorsal skin of the abdomen beneath the wings. 



