346 T. D. A. COCKERELL. 



Male ; hind tibife not red. 



P. amabilis) (8m.) = L. metallicus Sm. (T. i. 



(L. metallicus, being of later date than Dasycolleten metallicus, would need a 

 new name if valid ; but I am convinced that it is the male of amabilis.) 



4. Wings with a deep fuliginous cloud, hyaline basally ; abdomen dark purple; 



b. u. meets t. m. ; second s. m. very broad, receiving first r. n. about 

 its middle; third receiving second r. n. a long distance before its end. 



(Yarkand) Andrena peregrina = 



Lamprocolletes peregrinus Sm. (T). 

 Wings without a fuscous cloud ; second r. n. enters tip of third s. m 5. 



5. Size larger 6. 



Size smaller 7. 



6. Head and thorax green, abdomen purple; b. n. joins t. m. ; first r. n. joining 



second s. m. at its middle ; stigma narrow and lanceolate. 



Paracolletes plumosus (Sm.) (T.). 

 Abdomen shining dark green ; ruetathorax transversely carinate. 



P. carinas u* (Sm.) (T.). 



7. Abdomen deep blue ; hind legs partly red P. bicolor (Sm.) (T.). 



Abdomen greenish ; hind legs not at all red 8. 



8. Abdomen narrower P. versicolor (Sm.) (T.). 



Abdomen broader P. providus (Sm.) (T.). 



9. Antennae ramose Cladocerapis cladocerus (Sm.) % (T ). 



Antennae not ramose 10. 



10. Flagellum orange, largely blackened above, last joint all black, shaped like 



an incisor tooth, with one surface shining; depressed margins of ab- 

 dominal segments hyaline; b. n. falling just short of t. m.; first r. n. 

 enters second s. m. just beyond its middle; second r. n. enters third 

 s. m. some distance from its end. 



Paracolletes anteunatus (Sm.) % (T.). 

 Antennae not so 11. 



11. Third s. m. receiving second r. n. very near to or at its end 12. 



Third s. in. receiving second r. n. some distance from its end 15. 



12. B. n. falling a little short of t. m 13. 



B. n. meeting t. m. ; first r. n. joining second s. m. about its middle 14. 



13. Larger; first r. n. entering second s. m. not far from its beginning; dorsum 



of thorax with black hair; face covered with white hair. 



P. argentifrons (Sm.) (T.). 

 Smaller; first r. n. entering second s. m. about its middle; mesothorax shin- 

 ing, little hairy ; expanse of wings about 11 mm. 



P. nanus (Sm.) (T.). 



14. Abdomen pitch-black or perhaps blue-black ; stigma and uervures piceous. 



P.chalybeatus (Erichs.) 9- 

 Abdomen brown-black; stigma and nervures ferruginous. 



P. punctatus vSm.) 9 (T.). 



15. Hair of thorax black and grey, not fulvous or ochraceous 16. 



Hair of thorax fulvous or ochraceous, without black 17. 



16. Distance from first r. n. to second t. c. more, than twice distance from second 



r. n. to third t. c P. obscuros (Sm.). 



