88 Mr. T. D. A. Cockerell on Bees of the 



observable small scattered punctures. Thin liair-bands on 

 segments 5 and 6. 



Eab. Monument Rock, Santa F^ Canon, N. M., Aug. 11, 

 1895,8000 feet {Arthur Boyle). 



A very peculiar insect, so nearly agreeing with the descrip- 

 tion of -<4. platyparia that I can only consider it a geographical 

 race. A.fragilis, Sm., may possibly be allied, but Smith's 

 description is very short. 



ii. Head normal. 



(a) Pubescence of thorax bright fulvous ; a large yellow mark 

 on each side of face ; stigma very small. 



Andrena pulchella, Rob. 



Two females on flowers of Helianthus annuus at Las Cruces, 

 N. M., Sept. 22 and Oct. 6, 1895. The clypeus and legs are 

 darker than in the typical form found in Illinois. 



{b) Kather small species ; clypeus yellow in the S ; abdomen 

 with two orange bands. 



Andrena aureocincta, Ckll., sp. n. 



(J. Length about 9 millim. Black, with the clypeus 

 yellow and the abdomen with orange bands. Pubescence 

 pale ochraceous, thin, but rather long. Head broader than 

 long ; clypeus high, primrose-yellow, with two black spots, 

 with large sparse punctures, almost impunctate in middle, its 

 lower margin piceous, projecting. Basal process of labrum 

 roundly eraarginate. Mandibles simple, black, with the 

 extreme tips rufous. Pubescence of face and cheeks rather 

 long, but not dense enough to hide the surface. Front dull, 

 minutely aciculately sculptured ; vertex irregularly punctured, 

 bare just laterad of the ocelli. Antennee long, reaching as 

 far as postscutellum, wholly black, scape hairy, first joint of 

 flagellum not quite so long as second and third combined. 

 Mesothorax dull, strongly and rather closely punctured. 

 Enclosure of metathorax without a raised rim, minutely 

 transversely wrinkled. Tegulse shining piceous. Wings 

 smoky hyaline, the apical region slightly darker ; nervures 

 and stigma dark ferruginous brown, costal nervure black. 

 Second submarginal cell almost exactly square. Legs black, 

 all the tarsi orange-brown ; liind tibia? orange-brown, with a 

 suffused black blotch on each side. Hind coxse with a curved 

 tooth. Abdomen strongly and closely punctured, brown- 

 black, with orange bands occupying the hind margin of lirst 



