BEES OF THE GENUS COLLETES FROM MEXICO 



199 



round, well separated punctures. Face similarly but more closely punctured. 

 Vertex with larger punctures, and very sparse ochraceous hair. Top of head 

 nearly smooth, and nude. Antenna; black ; joint three two-thirds as long 

 as four; joint four and the remainder a little longer than broad. Scape slightly 

 punctured. Malar space very short, not much more than a line at base of 

 mandible. The under part of head clothed with fine white pubescence. 



Thorax — Shiny ; hair rather short and tinged with ochre on mesothorax ; 

 on the sides and on metathorax it is longer, lighter, more branched but not 

 plumose. Mesothorax with large round, well separated punctures, thicker 

 anteriorly, laterally and along posterior margin ; a very few on the shining 

 disk. Scutellum shining, covered with very large round punctures, more 

 crowded along posterior margin. Postscutellum narrow, with large shallow 

 round punctures giving a rugulose appearance. Superior face of metathorax 



i®i^>. 

 I^#^ 





Jim 



Fie'ure 7S. CoUetes guadalajarensis. 



with the usual shining pits. Enclosure funnel shaped, bowl broad, but 

 lower part narrow. Lateral faces shining, rough, with a few medium sized 

 round punctures. Sides with long white pubescence. Prothoracic spine very 

 short but pointed. Mesopleura double punctured, with very large round 

 punctures, quite close together, but with very minute punctures between ; 

 pubescence sparse, long, white. Wings hyaline, nervures and stigma brown. 

 Tegulffi shining, dark brown to black. 



Abtlomen — Shining black, with very few fine punctures on first segment, 

 i)ut more on the rest, nowhere thickly punctured, however. White pubescent 

 fascia; on ajMces of segments one to five. First segment with a few long white 

 hairs. 



Legs — Black to dark brown ; tarsi lighter, becoming reddish brown on 

 apical tarsal joints. Hair on posterior femora long, white, plumose ; that on tibiae 



