— loS— 



A. ligata Lee, 1873, S. M. C. No. 264, p. 211. 



Length 8 — 12 mm. = .32 — .48 inch. Hab. — Mont., Wash., Col., Ks., Mo. 



Closely allied to the preceding, but is distinguished from longi- 

 coniis by less robust form and shape of head, and from both vincta 

 and longicojiiis by the prothorax being less densely punctured, more 

 shining and more constricted, especially at the base. 



I am of the opinion that the three last-named species — longi- 

 cornis, vincta and Hgata, should be united under the oldest name, 

 viz. : longicornis Kirby. I have quoted the characters given by Dr. 

 LeConte for their separation, and I think the possessor of large 

 series of either species will find them all in his set. 



A. basalis Lee, 1873, S. i\L C. No. 264, p. 211. 



Length 10 — 11 mm. = .40 — .44 inch. Hab. — Cal., VVasli., Nev. 



A slender species, proportioned somewhat like longicornis, but 

 with the elytra more flattened and more densely punctured. The 

 head is gradually narrowed behind the eyes, as usual, but is very 

 distinctly constricted, though not strongly at base. The elytra vary 

 somewhat in color, being often lighter, but the red color at base is 

 always distinct on the umbones. 



A. directa Newn., 1842, Entom. p. 71; \-vitfata Linn, (fide Hald.); vittata 

 Sweder Yet. Ac. Nya Handl. 17S7, viii, p. 19S; Hald., Trans. 

 Am. Phil. X, p. 65; ^-vittata Schon., Syn. Igs. i, p. 497; pallida 

 Hald., 1. c. p. 65. 

 Length 6—8 mm. = .24— .32 inch. Hab.—?a.., N. J., Vt., N. Y., Md., 

 Ga., Ala., Ohio. 



A. militaris Lee, J. A. P. ser. 2, i, 1850, p. 322. 



Length 7 — 9 mm. = .28 — .32 inch. Hab. — Or., \\"ash., Cal., Idaho. 



Dr. LeConte describes this species as "black, with rather long 

 ashy pubescence with a small red humeral spot." This form ap- 

 pears to be rather rare, and that usually met with is without the red 

 spot and sparsely pubescent. It is often entirely black, but varies 

 in color like the following, from which it may be known by the less 

 slender form, particularly of the thorax. 



A. subpilosa Lee, 1. e; litpina Lee, Proc. Ac. Phil, xii, i860, p. 321; dorsalis 

 Lee, Col. of Kansas 1859, P- ^r. 

 Length 9 — 11 mm. = .36 — .44 inch. Hab. — Wash., Oreg., Cal., Wyo., 

 Mont., Utah, Kans., Rocky Mts. 



Black, vittate with, or entirely testaceous; pubescence long and 

 soft. 



A. lisa n. sp. 



Length 8 mm. = .32 inch. Hab. — Wash. 



One specimen sent to Dr. Horn and marked by him " evidently 



