THE CANADIAN ENTOMOLOGIST. 



373 



Perigenes costalis, n. sp. 

 Longer and narrower than constrictus, with the pale costal margin 

 uninterrupted, the surface nearly smooth, not pilose as in fresh examples 

 of that species. Length, 6-8 mm. 



Head closely- golden-pubescent, frequently eroded. Cheeks more 

 prominent than in constrictus. Pronotum proportionately longer, the 

 constriction nearer the posterior margin, anterior lobe less narrowed 

 anteriorly, the posterior more coarsely punctured. Anterior femora 

 incrassated, armed with three stout spines and a few minute teeth. Genital 

 segment of the male oval, convex at base, beyond which is a broad lunate 

 apical compression. Colour black ; antennae, legs, five longitudinal vittse 

 on the posterior lobe of the pronotum, the median a slender carina, fulvo- 

 testaceous ; apical one-half of the second antennal joint, and sometimes 

 the third joint, a broad annulus on the anterior and posterior femora, and 

 a narrow one on the intermediate, black ; apical joint of the antennas, tips 

 of the tibiae and tarsi and the rostrum piceous or almost black. Coxoe 

 and hind edge of the pro- and metapleura more or less ochraceous. Elytra 

 mostly blackish, with the edges, the nervures and the costa, sometimes 

 broadly, whitish. There is usually a pale spot on the inner angle of the 

 corium, and in pale examples the whitish areas are more or less punctured 

 with black. Membrane fuliginous with pale nervures. Slender edges of 

 the scutellum ferruginous. 



Described from a good series representing both sexes, taken at 

 Hamburg, N. Y., and Columbus, Ohio. On account of its more elongated 

 form and style of marking this insect has a slight resemblance to a stout 

 Paromius longulus. Some specimens are almost black, with the slender 

 costa pale. In perfect examples the head and pronotum have a few 

 scattering black hairs. 



Genus Pyg.«us, Uhler. 

 Stal, in 1874, established genus Salacia, indicating two sections : 

 "A" with the base of the pronotum and apex of the corium sinuated, and 

 "B" with these margins straight or feebly arcuated. Section "A" was 

 described as a distinct genus by Distant in 1893, and as this was the first 

 and supposedly typical section of Stal's genus his name, Cligenes, must 

 replace Salacia, which was preoccupied. Section "B" was described the 

 next year by Dr. Uhler as genus Pygceus, with one species, pallidtis, 

 ranging from Canada to the West Indies. Dr. Uhler's species is evidently 

 identical with that described one year later by Dr. Bergroth as Cligenes 



