48 Mr. T. D. A. Cockerell on Bees of the 



I have no doubt it will prove to be the female of LouiscBj 

 dalecBj or prosopidts , It is most like Louisce^ and, by analogy 

 with nitidus, should have a male with the abdomen shaped as 

 in Lom'sce; the latter, however, flies at a different time of 

 year and has a more distinctly punctured abdomen. More 

 probably, perhaps, the present insect belongs with dcdece, 

 which flies at the same season ; but against this supposition 

 is the difference in the length of the space between the eye 

 and mandible. The dark flagellum (faintly brown beneath) 

 and tarsi suggest dalece rather than ^^rosopidt's. 



It had been queried whether tliis insect might be Cresson's 

 albescens, hut that has the abdomen "very closely" punc- 

 tured, which certainly is not true of our species. The nervures 

 of our insect also are piceous or black, not " rufo-testaceous," 

 while our tegulee are clear testaceous, those of albescens being 

 piceous. 



Ilab. San Marcial, N. M., two specimens, June 28, 1895 

 {CklL 3101, 3112) ; Las Cruccs, N. M., one, June 8, 1894, 

 in the town {Ckll. 866) ; anotlier on parsnep, June. 



§§ Ochreous species of small size ; base of second abdominal 

 segment bairy ; tarsi ferruginous. 



Colhtes Annce, sp. n. 



c?. Length about 8 raillim. 



Black, with dense pale ochraceous pubescence, becoming 

 white on the checks and femora. Head broad ; face densely 

 covered with pubescence, which lias a distinct yellowish 

 tinge. Antenna3 long, wholly black ; first joint of flagellum 

 very short, scarcely more than half as long as second. Sides 

 of vertex inconspicuously and rather sparsely punctured. 

 Mandibles stout, rufous at ends, blunt at tips, notch a fair 

 distance from tip. Space between eye and mandible un- 

 usually short, more than twice as broad as long. Labrum 

 with an obscure median pit. Mesothorax with very large and 

 distinct, not very close, punctures. Base of metathorax witli 

 quadrate spaces, broader than long, enclosed by a sharp rim. 

 Posterior truncation shining. TegulfE rufo-testaceous, very 

 pubescent. "Wings perfectly hyaline, iridescent; nervures 

 and stigma ferruginous. Second submarginal cell very little 

 narrowed above. Legs black, with all the tarsi and the ex- 

 treme ends of the tibice ferruginous ; tarsi ciliated with long 

 hairs. Abdomen rather narrow and elongate, very hairy, 

 with minute punctures, sparse on first segment, and nowhere 

 dense. I'irst segment covered with long hair; s^mcnts 1 



