ROLAND ITAYWARD. 21 



and Bradytuft are to he regarded as generically di.stiiict, the name 

 putzeysi is preoccupied (Horn, Tiaiis. Am. Ent. Soc, 1875, v, p. 129). 



Nine examples, including specimens of hoth sexes, are known to 

 me. The type is a male and is in my own cahinet. Co-types exist 

 in the collections of Messrs. Blanchard, Fall and Wickham, and in 

 the Museum of Comparative Zoology and the National Museum. 



It occurs in New Mexico and Arizona. 



2. A. ttlorHCica ti. sp. — Form elongate, scarcely convex, the elytra some- 

 wliat flattened on the disk. Color rufopiceous, shining. Head as wide as the 

 thorax at apex ; frontal grooves deep, foveiforni, not extending anteriorly on to 

 the epistoma ; antennje slender, nearly as long as the head and thorax, ferrugin- 

 ous; palpi ferruginous. Prothorax suhcordate, about one-half wider than long, 

 much narrower at base than apex, rather sparsely punctate at apex, more 

 densely at base ; apex subtruncate, the anterior angles not prominent ; transverse 

 impressions feeble; median line fine, usually abbreviated at each end, sometimes 

 extending to base; basal impressions broad, deep, obsoletely bifoveate ; base sub- 

 truncate; sides strongly arcuate, very distinctly sinuate behind, the margin nar- 

 rowly reflexed ; hind angles prominent, subacute and rather finely carinate. 

 Elytra subparallel, together scarcely wider than the thorax and less than twice 

 as long as wide, deeply striate; strise entire, strongly punctate to behind tlie 

 middle, the scutellar stria long, the eighth with the row of ocellate punctures 

 broadly interrupted at middle; intervals nearly flat; humeri feebly subangulate. 

 Body beneath rufopiceous; sides of prosternum at most obsoletely jiuiictate; 

 metasternal episterna, sides of metasternum and of first and second ventral seg- 

 ments punctured. Legs rufopiceous; middle and hind tarsi with the three basal 

 joints distinctly grooved externally. Length .45-. 54 inch ; 11.25-13.5 mm. 



Tlie males have tiie middle tibite normally dentate on the inner side. 



i\[ost nearly related to pterosfi china, but readily distinguishable 

 by several cliaracters, among which the different color, smaller size, 

 thorax sinuate for a much longer distance in front of the hind 

 angles, and lack of distinct punctuation on the sides of the proster- 

 num may be mentioned, as well as the normally dentate middle 

 tibiie of the males. It seems to lead towards blanchardi and jacobina. 



The number of setigerous punctures along the inner margin of 

 the middle and hind femora is not constant in this species. In most 

 specimens there are either two or three on each femur, but as many 

 as five have been seen in one specimen, while in several the number 

 is different on the two sides. 



The type is from Colorado Spi-ings, Colorado, is a male, and is in 

 my own collection. Cotypes occur in the National Mu.^eum and 

 Museum of Comparative Zoology, as well as in the collections of 

 Prof. F. H. Snow and Mr. "Wickham. 



TE.\NS. AM. KNT. SOC. XXXIV. FEBRUARY, 1908. 



