256 THE CANADIAN ENTOMOLOGIST. 



piiactured, with a smooth median line, and has a yellowish spot on each 

 side. The lateral ridges are only indicated posteriorly, and that feebly. 

 Legs as in the S , except for the tarsal comb. This P was taken by 

 Prof. Townsend at La Cueva, Organ Mts., N. M., 5,300 ft., Sept. 3, 1898, 

 at flowers of Lippia Wrightii. 



Sphecodes perlustrans, Ckll. — This was described from a single speci- 

 men; a second was taken at Mesilla Park, N. M., March 30th, 1899, t>y 

 Mr. S. MacGregor. A new examination shows the mandibles to be 

 notched, not simple as described. 



Perdita grandiceps, Ckll. — Described from a single $ . Prof. 

 Townsend took 3 (J i ^ ( (^ $ in cop.) at flowers of Fallugia paradoxa, 

 var. acuminata, Wooton, La Cueva, Organ Mts., N. M., Sept. 3rd, 1898. 

 The ? runs to 21 in my Perdita table in Bull. Lab. Denison Univ., 1898, 

 and to 23 in the table in Proc. Phila. Acad., 1896. It differs from P. 

 phymatce by its colourless nervures ; from P. verbesince, var. nigrior, by 

 being only 5 mm. long ; from P. sidce by having the flagellum pale 

 ochreous (instead of orange) beneath, the upper edge of the clypeus not 

 at all whitish, the mesothorax more bare, with considerably shorter hairs, 

 and the marginal cell broader in j^roportion to its length. From the $ 

 grandiceps it differs by having the head of ordinary shape and size, the 

 cheeks unarmed, and the face wholly without light markings. The tip of 

 the abdomen is brownish-orange. 



Melissodes grindelice, Ckll. — To the localities for this species must be 

 added Los Vegas, N. M., where I took a. $ \n July. 



BEES AND FLOWERS. 



Primus (garden plum).— At Santa Fe, N. M.., in the spring of 1898, 

 Miss Myrtle Boyle collected from the flowers A?idrena prunoru?it, Ckll. 

 ($ (^ , the (J a var. with antennge wholly black), Halidus sisymbrii, Ckll. 

 ( P ), and Osviia iignari, Say ( ^ ). 



Ungnadia speciosa (det. E. O. Wooton). — At Dripping Spring, Organ 

 Mts., N. M., April 23rd and 24th, I found this beautifuj shrub in full 

 bloom. On April 23rd the following bees were visiting it : Osmia 

 lignaria, Say ( 5 P > abundant) ; Xylocopa arizonensis, Cr. (abundant) ; 

 Agapostemon texafius, Cr. (i P) ; Augoch/or a iieglectula, CkW. (abundant) ; 

 Halictus amicus, Ckll. ( p , abundant) ; Bombus Morrisoni, Cr. (a itvi) ; 

 and AntliopJwra lesquerei/a, Ckll. ( $ , rare). 



Dithyrcea wislize/ii. — On the campus of the N. M. Agricultural 

 College, Mesilla Park, May 7th, 1898, the following bees were at the 

 flowers : Anthidium larrece, Ckll. (one) ; Neolarra pruinosa, Ashm. 

 (many); Perdita callicerata, Ckll. (P) ; P. exclamafis,Ck\\. {$), and/". 

 punctosignata, Ckll. ( P ). The species of Perdita had appeared before 

 their proper flowers {Baileya and mesquite) were out, so they resorted 

 to the Dithyrcea, 



