Vol. xxili] ENTOMOLOGICAL NEWS 445 



Hab. Mexico (F. Smith's collection, 79-22). Brit. Mu- 

 seum. This is the first Hypanthidium north of Panama. I 

 was at first inclined to think that it might be the undescribed 

 male of Anthidium bivittatum Cresson, but I believe bivittatum 

 is a Dianthidium, and the differences indicated on comparison 

 with Cresson's description can hardly be all due to sex. H. 

 aureocinctum is not very closely related to its South American 

 relatives, but it is seen on comparison to be of the same gen- 

 eral type as H. flavomarginatum (Smith). In Friese's table 

 (Das Tierreich) is runs nearest to Dianthidium apicale, from 

 which it differs in many details. 



Panurginus cressoniellus calochorti Cockerell. 



Cripple Creek, Colorado, July 27 and 31, 2 9 , 5 <$ (S. A. 

 Rohwer*). Both sexes at flowers of Potentilla: males also at 

 Pentstemon and Geranium. The male does not differ from 

 that of typical cressoniellus. The altitude of the locality is 

 9590 ft. A study of a series of New Mexico females of cres- 

 soniellus indicates that calocharti is not more than a variety, 

 certainly not a subspecies. Specimens from Beulah, August 18 

 (W '. Porter), hill above Beulah, August 19 (IV. Porter}, 

 Harvey's Ranch, August 22 (Porter and Ckll.), and Viveash 

 Ranch, 9000 ft., July 21 (Ckll.), all have dark antennae and 

 belong with calochorti. Specimens from west of Beulah, 

 August 23 (W . Porter} and top of Las Vestas Range, June 

 29 (Ckll.) have the flagellum red beneath. Thus there is no 

 evident relation between altitude and the color of the antennce. 

 Sometimes the first r. n. enters the basal corner of the second 

 s. m. 



Panurginus verus Cockerell. 



Upon comparison of the female types, it is seen that this is 

 very close to P. cressoniellus calochorti. Aside from the dif- 

 ference in the recurrent nervure, P. verus has the deeper mar- 

 ginal cell rounded instead of angled at its upper apical corner, 

 and the second abdominal segment (exclusive of the apical de- 

 pression) more closely and evidently punctured. The last char- 

 acter is a variable one in cressoniellus. I incline to the opinion 



