120 GEO. H. HORN, M. D. 



A. Tlllpiiia Hentz, Journ. Acad. 1826, pi. xiii, fig. 3; Burm. Hanclb. iv, 1, 

 p. 27, and iv, 2, p. 472; Lee. J«urn. Acad. 1856, p. 287. — Piceous, moderately 

 shining, terminal segments of abdomen rufo-testaceous. Head and thorax with- 

 out metallic lustre, the latter densely punctured over its entire surface and clothed 

 with long fulvous hair, shorter and less dense 9- Elytra brownish testaceous, 

 immaculate, sparsely clothed with very short black hairs, at tip dehiscent. Body 

 beneath with long fulvous hair, denser at the sides. Legs piceous. Length 

 .60 inch; 15 mm. 



The sexual characters are as in lupina. It will be observed however 

 that in the posterior tarsus of the female the first joint is not conspicu- 

 ously longer than the second, while it is so in both sexes of all the 

 other species. 



Occurs in the Middle and New England States. 



A. Edwardsi Horn, (Lichnanthe), Trans. Am. Ent. S'oe. 1870, p. 77. — Piceous 

 black, surface with distinct aeneous lustre, clothed with brownish-black hair. 

 Clypeus emarginate. Thorax densely punctured witb a smooth space near each 

 hind angle. Elytra dehiscent at tip, brownish testaceous, sparsely clothed with 

 very short black hair. Abdomen nearly smooth at middle, usually entirely 

 piceous, sometimes with the last two segments rufous. Legs piceous, with aeneous 

 surface, sparsely pilose. Length .50— .60 inch; 13 — 15 mm. 



The sexual characters as in lupina. 



This is the only species at present known with the hair entirely dark. 

 Occurs in Oregon, Washington Territory and Nevada. 



A. canina Horn, (Lichnanthe), Trans. Am. Ent. Soc. 1S67, p. 164. — Piceous, 

 clothed with pale yellowish hairs. Head and thorax with aeneous lustre. Thorax 

 densely punctured with a smooth space near each hind angle, hair moderate in 

 length, uniformly yellowish. Elytra dehiscent posteriorly, brownish testaceous, 

 sparsely clothed with very short black hair and with spots of short yellowish 

 pubescence arranged in three irregular rows. Abdomen piceous with aeneous 

 lustre, the third segment nearly naked and with dark pubescence at the side 

 margin only. Legs piceous, sparsely hairy, tarsi paler. Length .50 — .60 inch ; 

 13 — 15 mm. 



Sexual characters as in lupina. 

 Occurs with the preceding. 



A. Rathvoni Lee. (Dasydera), New Species, 1863, p. 76. Closely resembles 

 Edwardsi, except that the pubescence of the disc of thorax is brownish-yellow 

 and the elytra are maculate as in canina. 



Occurs in California, Nevada and Washington Territory. 



Which of the west coast species was seen by Doubleday and casually re- 

 corded (Loudon's Magaz. 1839, iii, p. 97), it is not possible to determine. 



PL.USIOTIS Burm. 

 P. Lecoiltei n. sp. — Oblong oval, moderately convex, above brilliant green. 

 Clypeus nearly semicircular, densely punctured and of cupreous color; head more 

 sparsely punctured, the punctures finer posteriorly. Thorax twice as wide as 

 long, narrower in front, sides anteriorly arcuate, posteriorly nearly straight, disc 

 moderately convex, surface sparsely finely punctulate, color brilliant green, the 



