H. C FALL. 141 



I have little doubt that this species extends much farther north 

 along the Pacific Coast than the above localities indicate, and am 

 confident that cuprescens Mann., described from Alaska, is founded 

 on examples similar to the San Francisco specilnens above mentioned. 

 An examination of the LeConte types of proclive and crassmasuvi 

 shows that they are respectively female and male of the same spe- 

 cies. I have chosen to suppress the latter name as being the less 

 characteristic of the two. 



47. A. ciiii|>are!«se n. sp. — Robust, black, pubescent. Beak (%) stout, 

 shorter than the head and prothorax, feebly dilated one-third from the base, 

 thence very slightly narrowing to the tip, finely sculptured almost througliout 

 moderately punctate and pubescent, with a supra antenual groove, which extends 

 from the base to beyond the middle; ( 9 ) a little longer than the head and ]iro- 

 thorax, more slender and less pubescent. Front trisulcate; eyes large, moder- 

 ately prominent. Prothorax a little wider than long; base nearly one-half wider 

 than the apex ; sides rounded behind the apical constriction, subparallel in basal 

 third; basal margin rather strongly expanded; surface moderately, strongly, 

 closely punctate, with an elongate basal fovea. Elytra subparallel in basal three- 

 fifths, about one-third longer than wide; humeri prominent; intervals wide, 

 slightly convex; pubescence condensed at the bases of the third intervals. 

 Beneath rather densely clothed with elongate scales; punctuation strong, rather 

 close. Length 2.-2.4 mm. ; .08-.10 inch. (PI. IV. fig. 16). 



%. Siitural angles narrowly rounded; middle and hind tibite with rather 

 short, strongly, dentellate mucro. 



9 . Sutural angles not rounded ; tibise unarmed. 



Hab. — Lower California (La Chuparosa). 



48. A. groS!!$uluin n. sp. — Very rolmst, black, slightly jeneous ; vestiture 

 consisting of rather sparse, subsquamiform hairs. Beak ( 'J, ) as long as the head 

 and prothorax, not slender, moderately curved and dilated, coarsely, closely 

 punctate throughout; supra antennal groove short liut deep, first autennal joint 

 scarcely as long as the next two, outer joints becoming transverse, first nearly 

 reaching the eye. Front rather deeply trisulcate ; eyes large, prominent. Pro- 

 thorax a little wider than long; basal margin expanded and nearly one- half wMder 

 than the apex; sides arcuate; apical constriction well marked, the apical margin 

 thickened; surface rather coarsely, closely punctate: basal fovea puuctiform. 

 Elytra ventricose, not more than one-third longer than wide, widest a little 

 behind the middle; humeri moderate; striae well impressed; intervals nearly 

 twice as wide as the strise. moderately convex. Beneath densely, strongly punc- 

 tate ; legs not stout. Length about 2.3 mm. ; .09 inch. 



I. . .Middle ami hind tibiie with moderately long mucro, which bears an acute 

 denticle buiiijath. 



Hub. — Arizona (?) 



Described from a unique male in the LeConte collection, where it 

 was confu.sed with abdoinlimle. The si)ecimeu bears no locality 

 label, but the style of mounting and its associations make it practi- 

 cally certain that the locality named is correct. 



TRANS. AM. ENT. SOC. XXV. OCTOBER, 1898. 



