62 HENRY SKINNER, EDITOR. 



long on the cubitus as on the radius, the first recurrent nervure received by the 

 cell distinctly beyond the middle. The legs all covered with a whitish pubes- 

 cence, that on the inner side of tarsi golden. Abdomen shining with no definite 

 sculpture, the segments covered with a thin whitish pubescence, the fasciae white, 

 not heavy, that on first interrupted medially. 



Type. — Coll. Acad. Nat. Sciences, Phila. Type locality, Beulah, 

 N. M. One I , June 30, 1902 (Viereck). 



Colletes oromontis n. sp. Front of face and sides of thorax with white 

 pubescence, labrum shining with a median tubercle bearing a small dent, about 

 two striae to each side of the tubercle, sides of posterior face of metathorax 

 minutely roughened. Abdomen smooth. Nearest to nigrifons. 



9 Length 8 mm. Clypeus shining closely punctured except on the lateral and 

 apical border where it is more longitudinally striate, apical margin truncate, a 

 slight transverse impression near to the apical margin. Hardly any space between 

 eye and mandible, top of the head and cheeks roughened, somewhat shining. Pu- 

 bescence of face below insertion of antennae largely black. First joint of flagellum 

 almost as long as 2 + 3. Greater part of dorsulum shining. The punctures strong, 

 finer and closer near the margins, larger and sparser near the middle. A fine 

 median impressed line extends to the middle. Thorax covered with a pale, grayish 

 pubescence, most abundant dorsally. The superior transverse area of metatho- 

 rax dull, divided into narrow divisions by longitudinal striae. Enclosure funnel 

 shaped, the neck narrow shining, above the neck it is less shining, rugose. The 

 enclosure bare. Wings hyaline, slightly darkened, nervures and stigma almost 

 black, second submarginal cell almost half again as long on the cubitus as on the 

 radius, the first recurrent nervure received distinctly before the middle. An- 

 terior legs with a whitish pubescence, on the posterior four the pubescence is 

 blackish, femora excepted. Abdomen shining, first segment polished, almost 

 impunctate, second segment with fine punctures, the other segment indistinctly 

 punctured, covered with black pubescence, the first and second segments with 

 pale pubescence, segments with a white fascia on the apical border, beneath the 

 abdomen has black pubescence. 



Type. — Coll. Acad. Nat. Sciences, Phila. Type locality, Beulah, 

 N. M. One ? , June 30, 1902 (Viereck). 



Colletes brevispinosus n. sp. Labrum convex, subopaque, with a 

 central and lateral indistinct impressions near the base. Space between eye and 

 base of mandible less than one-half width of latter at that point. Prothoracic 

 spines distinct. 



9 Length 11 mm. — Front with coarse almost confluent punctures, those on 

 occiput much finer and not so closely arranged. Cheeks subopaque, roughened. 

 Clypeus slightly impressed medially, coarsely, confluently punctures, the punc- 

 tures lengthened longitudinally giving the surface a crude striate appearance. 

 Dorsulum with a faint median impressed line, on the middle of the sides a polished 

 line of about one-third the length of dorsulum. Punctuation on anterior half 

 coarseand close, the surface dull, along the sides the punctures are more separated, 

 the surface shining. From middle of mesothorax back the punctures are very 

 sparse, the surface shining. Pleurae closely puuetured, punctures as coarse as on 



