62 JOURNAL OF ENTOMOLOGY AND ZOOLOGY 



more slender body and rather longer hind legs, but legs I and 

 II are mucli stouter than in the female; the male aperture is 

 lyre-shaped, and situated behind coxae IV. There are four 

 spines each side on posterior venter, the anterior pair being 

 heavier than the others, and a pair between the bases of coxae 

 III. Length .7 mm. 



From a cockroach {Periplaneta americana) Canal Zone, 

 Panama, (Dr. Darling). 



