Feb., 1922 



A NEW SPECIES OF PLEA 



115 



not easily confused with strioJa, I have not injured a couple 

 specimens of the type series in order to figure male and female 

 genitalia. 



P. harnedi n. sp. may be readily separated from P. striola 

 Fieb. by the conspicuous color markings, the large triangular 

 (brown or fuscous) are between the eyes, and each elytron is 

 divided by a very deep suture into tw^o regions. In striola the 

 elytra are usually entire and the color, save a small median 

 streak between the eyes, is nearly a uniform yellowish gray; 



CL 



b 



Fig. 1. Plea harnedi n. sp. a, dorsal aspect; b, lateral aspect. 

 From drawing by W. P. Osborn. 



the elytra are also more highly arched behind and quite differ- 

 ently punctured. According to Dr. Hungerford the structure 

 of the elytra in striola (suture distinct or not) is a variable 

 character and not a satisfactory one. He states that some 

 specimens of striola in the National Museum show a distinct 

 suture (clavus present) and that in others it is pretty hard to 

 make out at all. My specimens of striola from Canada, Ohio, 

 New York, Pennsylvania, Florida and Mississippi, fail to show 

 a distinct clavus. 



A number of other rather interesting aquatic and semi- 

 aquatic Hemiptera were taken in the same pond, near Fayette, 



