Piccor.h vf Bees. 313 



and stifjma dark fuscous ; stifjma small ; ij, n. fulliiinf far 

 short of t.-m. ; second s.ni. l)i«;hcr than broad, rccoiviiij^ 

 first r. n. before its uiiddle. Aj^rccs with the description 

 of C. hrtvicornis, Rob,, c{ , except as follows: vertex rather 

 closely punctured ; mandibles less red ; nervurcs and stigma 

 dark, not testaceous; teguhe very dark, shining; apical 

 joints of tarsi dark. 



$, — Similar, ])ut broader ; the face broader, and not so 

 covered by hair as to hide the surrace; clypeus strongly, very 

 densely punctured, only moderately convex. 



Hal>. Boulder, Colorado, 19!)5 ; type (^ at flowers of 

 Opiuitia, July 3 (IF. P. Cockerel I) ; another male, July 5 ; 

 female at flowers of Campanula, June 27 {IF. P. Cuckercll). 



The female carries pollen, presumably of the Campanula, 

 having a delicate lilac tint, the grains very small. The 

 male also has a lair amount of pollen attached to the pubes- 

 cence, and may very well be a means of cross-fertilization. 



This species is the westirn representative of C.brevicornis, 

 Rob. ; the dirterential characters are not of great importance, 

 but suflieient to indicate a distinct species. 



CuUetes hijdrophilus, sp. n. 



(J, — Length about 10^ mm. 



Black, with white pubescence, blackish on scutcllum 

 and posterior disk of mesothorax ; apical half of mandibles 

 dark reddish ; labrum with a row of pits ; malar spaces 

 very short, more than twice as broad as long; eyes strongly 

 con\erging below; face densely covered with white hair; 

 antcMUie dark, long, the flagellum stout, crcnidate, its joints 

 much longer than wide ; third autennal joint dull velvety 

 blai'k, contrasting with the pruinose api.earanee of the rest 

 of the flagellum ; joint 4 about or nearly as long as 2 + 3 ; 

 5 much longer than 4 (in C. f/llcnsis it is only a little longer 

 than 4) ; mesothorax shining, with uniforndy-phiced, wcll- 

 8e[)arati d, large and strong jjuncturcs ; scutcllum with close 

 very large punctures ; |iostseiitclluiu with exceedingly dense, 

 smaller punctures, and a row of roundish pits along its 

 anterior margin ; area of metathorax with a vei'y strong trans- 

 verse ridge bounding the ba.sal area, which is divided into 

 very large quadrate spaces by about six carinre ; lateral 

 posterior faces shining, not much roughened, and not at all 

 reticulate; prothoraeic spines evident; teguhe shining l)lack. 

 Wings hyaline, clearer (and greyish, not at all redilish) than 

 in C. g'llensis ; stigma ferruginous, nervurcs rather light 

 fuscous; b. n. nearly reaching t.-m.; second s.m. broader 



