42 Journal New York Entomological Society, tvoi. xxv. 



moderately densely punctured, grossly toward base and finer toward apex, 

 more shining at base than at apex. Third antennal joint longer than fourth. 

 Eyes subtriangular, strongly and broadly emarginate at the antero-interior 

 side. Length 12 mm. 



Lake Tahoe Region, June 22-July 15, Yosemite Region, Tuolumne 

 Meadows, August 2, Southern Sierras, Monarch Lake, Tulare Co., 

 July 10, Cal. (Van Dyke), S. E. Cal. (Horn). 



Dr. Van Dyke says " this is a high altitude species, generally 

 found from 7,000 to 11,000 feet and usually about fir in which it prob- 

 ably breeds. I think that it ranges throughout the High Sierras and 

 perhaps also in Oregon, though I have not seen any specimens from 

 the Cascades." Dr. Van Dyke has taken somewhat over eight speci- 

 mens, the males and females occurring in about equal numbers. From 

 comparison made between one of these and mirificus, tcnchrosus ap- 

 pears to be a narrower insect. 



A. mirificus Bland. 



A. mirificus Bland, Proc. Ent. Soc. Phil., 1865, p. 382. 



A. venustiis Bland, Proc. Ent. Soc. Phil., 1865, p. 383 (female). 



Male. — Head and thorax black, coarsely punctured ; head deeply impressed 

 between the antenme, surface of the thorax uneven, a deep dilated central line 

 and deep transverse lines near the anterior and basal margins, lateral margins 

 nearly straight, with a strong obtuse tubercle. Elytra dull velvety red with 

 scutellar area and subapical spot black, basal half deeply but sparsely punc- 

 tured, becoming less distinct on apical half. Beneath minutely punctured, 

 segments rufous. Antennx nearly length of .body, third and fourth joints 

 equal, basal joints shining. Palpi rufous, mandibles rufous, at middle. 

 Scutellum triangular, closely punctured. Legs black. Length 14 mm. 



Female. — Entirely black, clothed with short, erect, brownish hairs. Head 

 grossly punctured, somewhat shining, central line deeply impressed between 

 the antennae, becoming obsolete near the base, a broad transverse depression 

 back of the eyes. Antennae about one half the length of the body, third and 

 fourth joints equal, fifth as long as the third and fourth combined. Palpi 

 piceous, mouth furnished with dark brown hairs. Thorax uneven, grossly 

 punctured, opaque, a deep transverse line near the anterior and posterior 

 margins, central longitudinal line dilated ; a strong, obtuse, polished tubercle 

 on the side. Scutellum triangular, closely punctured ; humeri prominent, 

 lateral margins parallel to the rounding of the tip, posterior half opaque, 

 minutely rugose, dorsal surface flattened, sides gradually depressed. Beneath 

 black, shining, closely and neatly punctured. Length 19 mm. 



Kamas, Utah, June 5-21; Buford, Colorado, July 27; Columbia 

 Falls, Montana, June 7; Haines, Oregon, August 3; Centerville, Idaho, 



