IOWA ACADEMY OF SCIENCES. 225 



Color: So variable that it can only be indicated under the varieties. 



Genitalia: Female pygofers, broader than long, the ovipositor only 

 slightly exserted; male plates broad at the base, gradually narrowing to 

 the middle, bejond which they appear as tapering, finger-like processes. 



Habitat: Europe, the New England states, Nova Scotia, 

 and Ontario. Uhler records it from Utah, Dakota, Sitka, and 

 Lake Winnipeg, but it seems probable that those references 

 were to one or more of the other species, as it has not been 

 found by anyone else in any of these localities, while both 

 ^ Mlineatus Siud'' ahjectus have. 



In color this species is very variable; in Europe about 

 fifteen varieties are recognized, ranging from pale, creamy- 

 white, through variously spotted and lined forms, to a shining, 

 jet black variety. These have not all been recognized in this 

 country as yet, but as both the extreme, and several of the 

 intermediate forms have, it has been thought best to give all 

 the more strongly marked varieties indicating which ones are 

 known to occur. 



These varieties all intergrade and no hard and fast lines 

 can be drawn in regard to them, but nearly all the examples 

 will fall readily in to one or another of the following ones, the 

 greaber number probably belonging to the first. 



O Var. ustulatus Fall. Grayish-brown or tawny, the vertex and anterior 

 half of the pronotuni light, a large, light spot before the middle of the 

 costal margin, and another, slightly smaller, behind. 



O Var. fasciatus Pabr. Vertex and anterior half of the pronotum golden- 

 yellow, the rest of pronotum and elytra dark-brown or black, with an 

 oblique band from scutellum, broadening to just before the middle of costa, 

 and a spot behind the middle, sometimes extending to a spot at apex of 

 clavus, white. 



O Var. marginellus Fab. Black; vertex and anterior half of the pronotum 

 and a stripe on the costal margin of the elytra, yellowish-white. 

 O Var. leucocephalus Linn. Dark-brown or black, vertex and anterior half 

 of the pronotum yellow. 



d> Var. lateralis Linn. Black; a broad, light stripe on costa. 



^ Var. leucophthalmus Linn. Entirely dark-brown or black. 



<3 Var. lineatus Fab. Yellowish-white; a median black stripe arising, 

 sometimes on the point of the vertex, sometimes on the pronotum, and 

 extending to the apex of clavus, often enclosing a narrow, light line; a 

 dark stripe on the corium, parallel with the first. 



, Var. pallidus Sch. Pale yellowish-white. 



Whatever its color, it may be readily separated from 

 lineatus by the broader, convex form, and the short, obtuse 

 vertex. 

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