IOWA ACADEMY OF SCIENCES. 65 



A. Elytra with longitudinal stripes between the white nerv- 



ures flavostriatus Donov. 



AA. Elytra maculate or transversely banded. 



B. Elytra with three definite dark bands, posterior 



half of pronotum light brunneo-bifasciatus Geoff. 



BB. Elytra variously maculate or banded, when banded 

 the bands testaceous brown, posterior half of prono- 

 tum dark albifrons Linn. 



A. flavostriatus Donov. 



A. rivularis Germ (of Melichar.) — Female dull, obscure yel- 

 low, heavily mottled with fuscous, elytra brownish fuscous 

 with light nervures; male pale yellow, a broad transverse band 

 at the apex of vertex, a bi- or tri-lobed one at base, and a nar- 

 rower one across the pronotum, fuscous or black, the face pale 

 yellow with a heavy fuscous spot in the center, a pale spot 

 either side the apex of the vertex; elytra dark fuscous with the 

 nervures and margins pale yellow. Length 9 4mm; S 3mm. 



Specimens taken at Woodstock, Vt., August 6, 1898, by Prof. 

 A. P. Morse. 



A. brunneo-bifasciatus Geoff. 



A. serratulae Fab. (of Melichar.) — Male, vertex and face 

 mostly fuscous brown or black, pronotum with the posterior 

 half mostly light; elytra, white with three broad, nearly equal, 

 bands, black, the anterior one broken, the posterior just before 

 the apex. 



A male from Madison, N. J., June 29, 1897, was sent by 

 Professor Osborn. 



A. albifrons Linn. 



A. mixtus Say (of Van D. Cat.) — This is the species com- 

 monly found in collections under the name of mixtus. The 

 females almost always show alternate dark and light macula- 

 tions along the costal and apical margins of the elytra and 

 sometimes the bands are indicated clear across the elytra. 

 The male is very variable and has been described under a 

 dozen different names in Europe, where it occurs abundantly. 

 It is always maculate or banded, but the general color and 

 bands are much lighter than in the preceding species and the 

 face is always light. 



It has been found in Lower Canada, New York, New 

 Hampshire, District of Columbia and Michigan. 



