Bees from Neio }fexi'cd: ISd 



c. First recurrent nervine reaching second subiuAi-jrillnl cell at a point 

 distant from tlic uri^'in of the Hrat transverso-cuhital more than half 

 the lenjjfth (if the latter. Stigma small or subobsolete. Wings not 

 smoky at apex. 



i. Large species, tegula: dark fen-uginous. 



Ileriades opunticej sp. u. 



$ . Length about 10 nilUiin. 



Black, with white pubescence. Punctuation throitgliout 

 strong, but fine and close, yet not close enough to prevent 

 the surface from sjiining. Pubescence conspicuous only 

 round antennae, at sides of face, on cheeks beneath, on and 

 above tubercles, on anterior part of mesothorax, along margins 

 of pleura, in a line above the wings, continuous along hind 

 margin of scutellum, along lateral edges of metathorax, on 

 00X03, femora bencatii, tibia3 and tarsi ratiier thinly in front, 

 and in the abdominal scopa and the five white narrow bands 

 above. All this is white, but the tarsi on the inner side are 

 clothed with orange-rufous hairs. Head very large, sub- 

 quadrate, seen from in front as large as the lateral view of 

 tiie thorax, Ijroad behind the eyes, closely punctured on the 

 vertex and cheeks, but with larger much sparser punctures 

 on the shining clypeus. Antennje short, fiagellum faintly 

 brownish towards tiie end. Mandibles very broad, the long 

 oblique inner edge ornamented with appressed ferruginous 

 hairs, and presenting a tooth about its middle. There is no 

 sort of prominence on the outer side. Eyes bicoloured, black 

 in front, sage-green behind. TegulaB shining dark ferrugi- 

 nous. AVings clear, nervures and stigma black, stigma ex- 

 tremely small. The anterior margin of the clypeus is perfectly 

 straight, and beneath it are some very bright orange-ferruginous 

 hairs. The base of the metathorax is smooth and shining. 

 The tibial spurs, which are pale yellowish brown in H.gracilior^ 

 are so only on the front legs of opuntice, on the others being 

 black. I'lie four anterior tibiae in gracilior come to a decided 

 point at the end on the outer side at an angle of perhaps 50°; 

 but in opuntice they exhibit at the same place a short but 

 slender spine, slightly curved upwards. The hind tibi» are 

 slightly nodulose on the outer side in gracilior ^ not so in 

 opuntice. 



Hah. At flowers of Opuntia^ Soledad Canon, N. M., 

 May 22 {CklL). At one time 1 took this for N. rotundiceps^ 

 Cresson ; but on comparing it closely with Cresson's descrip- 

 tion, it is evidently distinct. 



