Specific Characters in the Bee Genus Colletes 9 
8. Malar space one-sixth as long as broad; outer ‘hind tibial 
SE ME OMe Beyer PECLIAGEC oi sais cha’ ae s\n Bree salad wa vile Sale od eh care 9 
9. Disk of mesothorax and anterior half of scutellum eek) and 
rather closely punctured; more robust; superior face of meta- 
thetax, broader *head longery:.8-9 mimics l ese. bes ce) crawfords 
9. Disk of mesothorax and anterior half of scutellum smooth and 
shiny, subimpunctate; more slender; superior face of metathorax 
Staailersa nead eslonter, 271 Ohk Mitts. ote a oie S crgindre faa aretiaye os chamaesarachae 
10. Malar space about three-fifths as long as broad; clypeus en- 
tire; no fascia on base of segment 2; 10-11.5 mm..... skinner 
10. Malar space about one-sixth as long as broad; clypeus 
slightly emarginate; segment 2 fasciate at base; 13-15 
EIINT EROS HRN ee TSE tha eo Ne Oh oS Sees re cle, Gata Seale ee Aes ots gilensis 
11. Ventral valve of apex bicarinate; metathorax with a rugose trian- 
gular enclosure and no pitted superior face; segment 2 fasciate 
AP HAS AAO LACT IIER el. PRS te bnels a rercas crosses vote, eal w wile rae eS compactus 
11. Ventral valve of apex simple; metathorax with a distinct superior 
face crossed by a transverse series of subquadrate pits; segment 
IMIG MASGIATCRALUDASE gore Canale aictoni act seater aheha in © eyelet ace elctewe alee eae 12 
12. Malar space about three-tenths as long as wide; clypeus con- 
vex, coarsely striate-punctate; 12-13 mm............ inaequalis 
12. Malar space very elongate, one and one-half times as long as 
broad; clypeus long, non-striately punctured, broadly me- 
ciel varsinl Catie sur lee tranmies ct seat as techs yaa ies hata eer aa eee validus 
Matin spacelabout, one-half as long tas widest). .0....i Jats heee 14 
. Malar space short, less than one-half as long as wide............ 16 
14. Flagellar joints about as long as wide; mesothorax coarsely 
punctured; joint 3=4; two basal abdominal segments im- 
punctate, segment 2 fasciate at base; 11 mm........ distinctus 
14. Flagellar joints distinctly shorter than wide; abdomen thinly 
Pas Clagel OMe: OMe DASE) Of ooo issveie shel ais hve eal eshereleveude me yatal& 15 
15. Mesothorax with large and close punctures; clypeus flat, not sul- 
15. 
cate; joint 3=4; two basal abdominal segments impunctate; 
wines cloutled, their, nervures: black ;°9° mimi.'.s 525 40 lee lacustris 
Mesothorax very finely and sparsely punctured; clypeus convex, 
broadly sulcate; joint 3 exceeding 4; segment 2 finely punc- 
tured; wings clear, their nervures brown; 9 mm.......... productus 
16. Mesothorax rather sparsely punctured; scutellum and meso- 
notum with a few black hairs intermixed; wings hyaline, 
MELVILES ATI NStio may DlAGKs |. O15 emtMint Ve iyse hie bere ate algarobiae 
16. Mesothorax coarsely punctured, the punctures crowded an- 
REL O Ti Veet eo OM SHR RN stant hea ens earoacs feanae lc aae ha, ahaa es 17 
17. Hair on anterior border of posterior and intermediate tarsi within, 
black ; venter without long, dense scopal fringes; 9.5 mm.intermixtus 
isyll 
