418 Messrs. T. D. A. Cockerell and W. Porter on Bees. 



Callandrena, Ckll. 



Callandrena pectidis (Ckll). [Panurgus inciidis, Ckll. Tr. 

 Am. Ent. Soc. 1897, p. 148.) 

 This has a broad galea, and the labial palpi have the first 

 joint stout and curved, the third shortest, the fourth very 

 "narrow. The curved basal joint of the labial palpi is espe- 

 cially characteristic, and shows its affinity with the pulchella 

 group of Andrena. 



Hesperapis, Ckll. 



Hesperapis rJiodoceratus (Ckll.). {Panurgus rhodoceraius, 

 Ckll. Tr. Am. Ent. Soc. 1897, p. 148.) 



Hesperapis olivice (Ckll.). (Panurgus olivia;, Ckll. t. c. 

 p. 149.) 



In //. rJwdoceratus the tongue is very short, broad at base, 

 the apex linear, with diverging branchlets ; labial palpi as in 

 typical Hesperapis ; maxillary palpi short, 6-jointed, 1 only 

 about twice as long as broad, 2 very little longer than 8 or 6, 

 4 as broad as 3, only 6 very slender. 



The dagger-like tongue with a linear fimbriate tip at once 

 separates this genus from Bhophitoides. 



In lihojjhitoides canus the tongue is long, slender, parallel- 

 sided, with the end flattened and rounded, covered with little 

 conical projections ; the labial palpi also are different from 

 those of Hesperapis^ having the first two joints remarkably 

 stout and large and about equal in length. 



Hypomacrotera, gen. nov, (Panurginte.) 



Type H. callops, sp. n. Includes also//. suhalpi?m [Calli- 

 op)sis buhalptnvs, Ckll. 1894). 



Head broad, tiansversely oval ; wings with a black apical 

 s])ot in the male ; marginal cell long and narrow, obliquely 

 .subtruncate at the end ; two submarginal cells, the second 

 about or nearly three quarters the length of the first, both 

 being long ; tongue short, fairly broad ; paraglossee short ; 

 labial palpi 4-jointed, the first joint longer than, but not 

 nearly twice as long as, the other three together; maxillary 

 palpi 6-jointed ; claws cleft. 



This differs at once from Macrotera, Smith, by the much 

 shorter tongue and the long narrow marginal cell. It 

 resembles it in the narrow stigma and also quite closely in 

 the palpi. In addition to the two species cited, it includes 



