AMERICAN COLEOPTERA. 119 



V Ml* II 14 091 \ Latr. 



Under this generic name are included the North American species 

 formerly placed in Lichnanthe and Dasydera. 



Our species are as follows : 

 Elytra contiguous from suture to tip, their disc immaculate, labrum emarginate. 



lupiua. 



Elytra dehiscent posteriorly. 



Labrum very feebly emarginate, almost truncate ursina. 



• Labrum deeply emarginate. 

 Elytra immaculate. 



Thorax densely punctate over its entire surface Ylllpina. 



Thorax with a smooth space in each hind angle Edwardsi. 



Elytra with denser spots of pale pubescence in three irregular rows. 



Pubescence above and beneath pale yellow caniiia. 



Pubescence entirely black, that of the disc of thorax brownish-yellow. 



Rathvoni. 



A., lupina Lee. {Lichnanthe), Journ. Acad. 1856, p. 288. — Piceous with slight 

 greenish lustre, elytra testaceous. Body beneath sparsely clothed with yellowish 

 hairs. Labrum deeply emarginate. Thorax broader than long, densely punc- 

 tured over its entire surface and clothed with rather short yellowish hair. Elytra 

 with very short and not dense black hair, contiguous along the entire suture, the 

 sutural angle with a distinct tooth. Length .44 inch; 11 mm. 



The antennal club is slightly longer in the male. The posterior legs 

 are stouter in the female and shorter and the tarsi relatively longer. 

 The posterior tibiae are distinctly arcuate in % , straight in 9 . As 

 a general rule the 9 i g much less pubescent than the % and the hairs 

 shorter, although the differences here are less ' marked than in the 

 following species. 



Occurs in New York, Pennsylvania, and tbe New England States. 



A. ursina Lee. {Dasydera), Proc. Acad. 1861, p. 345; Cooperi Horn, Trans. 

 Am. Ent. Soc. 1867, p. 164.— Piceous, shining, head and thorax with distinct 

 aeneous lustre, elytra testaceous. Labrum very feebly emarginate. Thorax nar- 

 rowed in front, broader in 9 > surface densely punctured with a smooth space at 

 each hind angle, clothed with silken white hairs longer in % . Elytra dehiscent 

 posteriorly, sparsely clothed with short white hairs. Body beneath moderately 

 densely clothed with white hairs, the abdomen smooth at middle and rufo-testa- 

 ceous, without hairs in 9 , very sparsely pubescent even at sides and entirely 

 rufous % . Legs piceous with aeneous lustre, tibiae and tarsi usually paler. Length 

 .40— .60 inch; 10—15 mm. 



In this species the legs, especially the tibiae are more densely ciliate 

 than in any other species. The sexual characters are as in lupina, the 

 male being however more slender than tbe female. 



The species described by me as Cooperi seems merely a feeble male. 



Occurs in California near Sacramento. 



