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



Callandrena, Ckll. 



CaUandrena pectidis (Okll.). {Panurgus pectidis, Ckll. Tr. 

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



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

 joint stout and curved, tiie third shortest, tiie 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. 



Ilesperapis rJwdoceratus (Ckll.). {Panurgus rhodoceraluSj 

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



Hesperapis olivice (Ckll.). (^Panurgus olivice, Ckll. t. c. 

 p. 149.) 



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

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

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

 about twice as long as broad, 2 very little longer than 3 or G, 

 4 as broad as 3, only 6 very slender. 



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

 sejiarates this genus from Bhophitoides. 



Jn HhojJiitoides canus the tongue is long, slender, j)arallel- 

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

 conical projections ; the labial palpi also are different from 

 those of Hesperajns, having the first two joints remarkably 

 stout and large and about equal in length. 



Hypomacrotera, gen. nov. (Panurginaj.) 



Type JJ. caUops, sp. n. Includes n\so If . siihalpina {CaUi- 

 cjysis i<iih(dpivus, Ckll. 1894). 



Head broad, tiansversely oval ; wings with a black apical 

 spot in the male ; marginal cell long and narrow, obli(piely 

 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; paraglossa? short; 

 labial pal})i 4-jointed, the first joint longer than, but not 

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

 pal})i G-jointedj claws cleft. 



'i'his difl'ers 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 



