Descriptions and Records of Bees. 



25 



KXTLANATIUN OF PLATK I. 

 Tho following lotteru ftpply to all tlio fipuros : — 



/>'*^. Vontrftl «iickt«r. 



Cll. C'irriis-poiicb. 



im. Volk-rosorvoir. 

 DUt. Y..lk-j?IiiiKis. 



E.V. Mxcri'torv \esicle. 

 J. IntcHtiiml diverticula. 

 A'6Y. Ovary. 



Ov. Ova. 



IHl. Ot'tiitnl npirturo. 

 VV. I'urs pniMtuiica. 

 y,, 'l\. Te.sti'8. 



lis. Keccptaculum somiuid. 



Ut. L Utus. 



J//. Viigiua. 



VS. Vesicula seminalia. 



/VV/. 1. (I^fn^iiria) nlacrii, L99. Voutral view, x oO. 



Fiij. 'J. I)ilu'mistei>h(tnuB lydice (Stos.^.). Ventral view, x 45. 



Fiy. .'}. Ditto. Head, dorsal nspoct. x lOo. 



Fiij. 4. 'Aooyotius rubellus (Ol.^son). Ventral view, x 7o. 



Ftff. 5. I^ci(/Ki.^tfr yiOfiostix (liud.). Ventral view. X 50. 



Fu/. G. Gaxierostomum trii/let, v. 13en. \'entral view. X 30, 

 terior sucker. I'S., posterior sucker. 



AS., an- 



II. — Descriptions and Records of Bees. — XXI. 

 By T. D. A. COCKEKELL, University of Colorado. 



Agnposlemon aulcatulus, sp. n. 



(^ . — Lciigtli 8 mill, or sli<rlitly over. 



In Crawford's table (Pr. Nebraska Acad. Sci. 1901, p. 158) 

 il runs lo E, but docs not resemble A. nasutus or A. rhopalo- 

 (cra ; except for tho small size it runs to C, and runs out 

 because tiie head and thora.x are brilliant green, not at all 

 blue, and the yellow band on the clypeus is without any sign 

 of a tooth or projection. Form slender ; scape black, with a 

 broad yellow stripe in front; flagellum dull ferruginous 

 beneath, black above. Wings j)erceptiblj dusky, with a 

 yellow or orange tint ; stigma dull amber-colour, nervures 

 daik fuscous. Metathorax above shining and very coarsely 

 wrinkled, the area not defined ; posterior face with strong 

 ."harp edges; first four Irochantors yellow with a little black, 

 hind trnehanters black. Legs yellow, a large black patch on 

 apex of hiiicl femora and a small spot on middle ones; middle 

 and hind tibiic with a black band on outer side and a dark 

 apical spot, anterior tibia3 with a du ky niaik behind. Abdo- 

 men with five yellow dorsal band.'', that on first segment 

 narrowed in the nnddle; venter with fuscous markings, 



