22 :\Ir. T. D. A. Cockercll on Bees. 



mixed with bhick ov ruscous ; cyos (wlicii drv) light greenish 

 yellow ; facial quadrangle much longer than broad; clypeus 

 (except the usual lateral spots), labrum (except an elongate 

 mrdiiin black mark), and a spot at base of mandibles light 

 A elloNv ; mandibles mainly ferruginous; vertex seen from in 

 front moderately elevated ; hair of occiput very long, abun- 

 dant, and wjiite ; antennaj reaching to base of abdomen, scape 

 pubescent, tlagelluui dull ferruginous beneath, except first 

 and basal half of second joint ; flagellar joints above with 

 their apical margins very narrowly white-ringed; fourth 

 antennal joint much longer than fifth ; hair of thorax dull 

 ■white ; mesothorax dull, very densely mallcate rather than 

 ]>unctured ; tegula? dark orange-ferruginous; wings witii ;i 

 yellowish tinge, slightly dusky on apical margin ; nervures 

 dark ferruginous ; legs black, with white hair, small joints of 

 tarsi ferruginous, hair on inner side of basal joints of tarsi 

 orange ; abdomen very dark brown, with the bases of the 

 segments becoming black and their hind margins pallid, the 

 l)ubescence ■white (pale yellowish on last segment}, forming 

 more or less distinct bands on the third to fifth segments ; 

 subapical lateral spines large, apical plate broad ; venter 

 hairy. 



Uab. At flowers of a tall species of Machceranthera, near 

 the White Sands, New ]\[exico, Sept. 30, two males {Cock- 

 irell) ; Buckeye, Arizona, at flowers of Cucurhita 2)o.lmatay 

 one male [Cockerell). 



Larger than the male of M. ohliqua, with the fourth an- 

 tennal joint longer and the notches at the sides of the apical 

 j)late of the abdomen (so conspicuous in obliqua) barely 

 indicated. The size agrees with M. Toionsendi, which has 

 the pubescence quite different ; the underside of the flagellum 

 a very lively (instead of dull) ferruginous, which extends to 

 the extreme base ; and the apical plate very hairy, with a 

 strong black rim which is not in the least notched. The 

 ■s\holly pale hair of the ventral surface of the abdomen sepa- 

 rates it at once from J/, comanche, C'resson, and the longer 

 antennae from M, texana, Cresson. 



While on Melissodes, it is desirable to mention that 

 ^Ir. Viereck has examined Cresson's types of M.hiluherculata, 

 M. offlicta, and M. Sumichrasiiij and finds that all three 

 belong to the genus Diadatia. M. tohica and M. apacha 

 have been already referred to Diadasia by Mr. Fox. 



A female Melissodes from Phoenix, Arizona, Oct. 15, at 

 flowers of Uelianthus annuus, is apparently the female of 

 M. machcpranthercr. It has the general build of ? M. obliqua. 



