﻿— 107— 



A. subaenea Lee, 1. c 1S50, p. loi. 



Length 9 mm. = .36 inch. Hab. — Cal. 



Thi.s species is grouped with the preceding in the table, the 

 outline of prothorax behind the tubercle being decidedly concave, 

 but the tubercle itself is very nearly rounded, and the insect resem- 

 bles the following species in form. The color and coarser punctua- 

 tion will, however, distinguish it from suhpilosa, its nearest cousin, 

 in the next group. 



A. pinguis Lee, S. M. C. No. 264, 1873, p. 210. 

 Lenp;th 9 mm. = .36 inch. Hab. — Cal. 



" The punctures of the basal half of the elytra are arranged so 

 as to gi\-e the appearance of faint longitudinal stripes, of which the 

 inner one runs obliquely forward towards the humerus, so as to tend 

 to unite with the others" (LeConte). 



This species is at present represented by a unique in Dr. Horn's 

 collection. 



A. tumida Lee, Ent. Rept. 1S57, p. 63; liigeiis 'Lee, 1. c.\ fiisca Lee, 1. e; 

 californica Lee, J. A. P. ser. 2, I, p. loi; subcyanea Lee, Ent. 

 Rept. p. 63; moUipilosa Lee, Proe Ac. Phil, i860, p. 321. 

 Length 7 — 12 mm. = .28 — .48 inch. Hab. — Oreg., Col., Nev., Cal. 



This species varies in color from black, partly or wholly fuscous 

 or testaceous to blue, and also considerably in the amount of pubes- 

 cence. The forms described by Dr. LeConte are inseparable and 

 were all referred by him, in 1873, to hcmida. The name it will be 

 noted is not the earliest, but the most descriptixe. 

 A. viola Lee, Proe Ac. Phil, i860, p. 321; Horn, Trans. A. E. S. xii, 1885, 

 p. 180. 



Length 11 mm. = .43 inch. Hab. — Oreg., Cal., Nev. 



Similar to UimI'da, but differs as follows: "color violet-blue, 

 legs and antenuce black, surface clothed with short, black, erect 

 hair. The elytra are more densely punctate, and the thora.x rather 

 less so than in tumida' (Horn). 

 A, longicornis Kby., 1837, Fn. Bor. Am. p. 185; Lee, J. A. P. ser. 2, I, p. 321. 



Length 9 — 11 mm. = .36 — .44 inch. Hab.—C^\., Col., Wash., Oreg., 

 "65°" (^Kirby). 



Elytra usually black vittate with yellow; legs yellow or black. 

 Varies all black, or all testaceous, suture black, or as in marginalis 

 (Lee, Ent. Rept. p. 28), elytra testaceous, margin black. 



A. vincta Lee, Proe Ac. Phil. 1S61, p. 346. 



Length 12 — 13 mm. = .47 — .53 inch. Hab. — Cal., Oreg., Utah, Neb. 

 Closely resembles preceding in form, color and variations. 

 Differs by head being oblique behind the eyes, hind impression of 

 prothorax deeper and general form less robust. 



