148 BULLETIN 31, UNITED STATES NATIONAL MUSEUM. 



tljat on the socoiid segfmeiit oec,ui)ies more than one-tLiid [orone-lbuith], 

 that on the third more than one half [or one-third], of th<' length of the 

 segment; segment four shows posteriorly a semicircular, black, shin- 

 ing spot, occupying the whole i)osterior margin and reaching beyond 

 the middle of the segment anteriorly; segment live [in the female and 

 the hypoi^ygium in the male] black. Femora black, knees aud anterior 

 half [or third] of the tibiae brownish yellow ; the remainder of the tibiae, 

 as well as the tarsi, are darker [the first three joints of the tarsi in the 

 male are red]. Wings grayish hyaline ; cross-veins and tip of second 

 vein with small brown clouds ; stigma brcTwu. 



'• One specimen, Vermejo River, ]S"ew Mexico, June 25." 

 A single male specimen from Arizona (Mr. E. Keen) shows only un- 

 important differences from the foregoing description of the female by 

 Osten Sacken. These differences are included in the brackets. 



Volucella (Temnocera) pubescens. 



Temnocera pnhcscens Loew, Wieu. Eut. MouatscLr., v, 3S ; Centur., vi, 35. 



Habitat. — Cuba (Lw.). 



9 . Length, 12.5™'". Black ; the head, dorsum of thorax, upper 

 part of the pleurae, and base of the abdomen, lutescent, antennae sub- 

 fuscous, wings cinereous-hyaline, the transverse veins wholly, the aux- 

 iliary and the third longitudinal veins at their tips clouded with fuscous. 



Head luteous, posterior orbits of the eyes white i^ollinose. Lower 

 part of the face strongly ])roduced, acuminate, thickly clothed with very 

 short black pile. Antennae subfuscous, upper margin of the third joint 

 excised, arista black and black plumose. Proboscis elongate, black. 

 Front on each side with an arcuate impressed line, black pilose, inter- 

 mixed with s})arse yellow pile. Thorax luteous; disk of the dorsum 

 with three very broad, confluent, black stripes, very thickly covered 

 with lutescent pile, on the lateral margins and behind sparsely provided 

 with black bristles. Upper part of the jileunB luteous aud luteous pu- 

 bescent, below with the pectus black and black pubescent. Scutellum 

 inflated, not impressed before the tip, luteous on the disk with black 

 pile, on the margin with luteous, along the border with ten black bris- 

 tles. Abdomen black, thickly black ])ubescent first and the greater part 

 of the second segment luteous and luteous pubescent. Wings cinereous- 

 hyaline, base dilutely lutescent, second longitudinal vein at the tip 

 strongly recurved, and, with the tip of the auxiliary, and the transverse 

 viens wholly, slenderly clouded with fuscous. — Translation. 



The type specimens of this species are not contained in the Museum 

 of Comparative Zoology. 



Volucella (Temnocera) purpurascens. 



Temnocera 'pvrpnrasccns Loew, Centur., vlii, 52. 

 HaUiat.—R{\y\\ (Lw.)! 



9 . Length, 13 to 16™'". Black, scutellum and the first two segments 

 of the abdomen puri^lish, the remaining segments and the venter deep 



