310 Descriptions and Records of Bees. 



Hob. Ward, Colorado, 9000 ft., at flowers of PhaceUa 

 circinnta, July {W. P. ^ T. D. A. CklL). 



Chalicodoma camentaria (Meinecke). 



A/i{x muraria yiitida, Retzius, Gen. et Spec. Ins. 1783 (not Apisnitida, 



O. F. Miiller, 177(3). 

 Apis ccimejitariu, Meineclie, Natnrforpcher. 1784, p. 208. 

 ? .4;'/s A;*//()rwm, Sclirank, Enum. Ins. Austr. 1781 (not of Fabricius, 



1775, which is a Xylocopn). 

 Chalicodoma muraria (Olivier), anctorum. 



Jlalicfus arapahonum, sp. n. 



? , — Belongs to HaUctus s. str., sens. Robertson, and is 

 allied to H. fasciatns, " Nyl.," Rob.* 



Length about 6^ mm. 



Head, thorax, and abdomen olivc-grecn ; hind margins of 

 abdominal segments rather broadly and conspicuously rufes- 

 cent, but covered with short whitish hair, except tlie middle 

 of first ; base of third and fonrth segments also broadly hairy, 

 the hair having a decided yellowish tint ; clypeus black, 

 shining and very sparsely but distinctly punctured, supra- 

 clypeal area somewhat brassy ; flagellum ferruginous beneath, 

 darker toward base ; tegulse large, colourless and transparent, 

 except for a cream-coloured spot. Wings somewhat reddish, 

 stigma and nervures amber-colour ; second s.m. narrow, not 

 half as broad as third; outer nervures strong. Legs black, 

 the knees, tibiae at base and apex, and anterior tibise within, 

 and all the tarsi (except a black mark on basal joint of hind 

 ones) ferruginous ; hind spurs strongly curved at end, and 

 with four to six short dark blunt teeth, the last t'wo or three 

 rudimentary. Compared with 11. fasciatns, '' Nyl./^ Rob., 

 the clypeus is larger, the punctures of front are somewhat 

 stronger, the area of metatliorax is larger (finely reticulate 

 all over, without any plicse), the abdomen is conspicuously 

 broader, and the general colour is much greener. Compared 

 with //, meliloti, Ckll, (which occurs at Boulder), the face is 

 longer, with the clypeus much more produced, the tegulse 

 are larger, the area of metathorax is difierent, &c, 



nah. Boulder, Colorado, June 4, 1905 {W. P. Cockerell). 



"With a compound niicroscope, the area of metathorax in 

 meliloti (type specimen examined) shows fine oblique grooves 



* This coninion ppecies of the Eastern States is no doubt the one lately 

 feparated as //. nearcticus, Vachal, but Mr. Crawford is confident that 

 the eailier name //. Provancheri, D. T. {constr ictus, Prov. not Sm.), is 

 fijpjliriiblp to it. 



