47() Mv. T. L). A. Cockeiell — Descriptions and 



o. A. S. Woodward. ' Catalnirue of the Fossil Fishes in the British 



Museum,' pt. ii. 1>^01 (on Eu^thennptcron, p. .'^fil 5^7.)- 

 4. . ' ^'ertebrAte Pal;ooiitoloy:y,' 1893 (ou I'Jnsf/teicojjleron, p. 25 .•^eq. 



& p. 76 seq). 

 Ti. E. S. Goodrich. " On the Pelvic Girdle and Fin of Uusthetioptcron,'" 



in Quart. Journ. Micr. Soc. vol. xlv. 1002, p. 31 1 ,ieq. 

 (i. . '' Cycloslonies and Fishes,'' Part IX. Vertebrata Craniata of 



Sir Ray Laukester's * A Treatise of Zoolofry,' 1909. 



7. L. Ilr.ss.\KOP. " Notes on Dovonic Fishi'S from Soaumenaf^ Bay, 



Quebec," New York State Museum, Bulletin loii, 1912, p. 127 seq. 

 (on Eusthenoptero7t, p. 131 .'eq.). 



8. W. Patten. ' The Evolution of the Vertebrates and their Kin,' 1912 



(on Euatlienopteroit , p. 391). 



9. W. K. Gregory. " Present Status of the Problem of the Oriirin of 



the Tetrapoda, ■with special reference to the Skull and Paired 

 Limbs," in Annals N.Y. Acad. Sei. vol. xxvi. 1915, p. 317 seq. (on 

 Eusf/ienopferon, p. 35S seq. k p. 3tU). 



10. C. (iKr.KXBAUR. ' Vergleicheude Auatomie der Wirbeltiere,' i. Bd., 



1898. 



11. D. M. S. Watson. "On the Primitive Tetrapod Limb," in ' Anato- 



miscber Anzei^er,' vol. xliv. 1913, pp. 24-27. 



12. R. Broom. " On the Origin of the Cht^iropterygium," in Ball. Amer. 



xMus. Nat. Hist. vol. xxxii. 1913, pp. 459-404. 



XLIX. — Descriptions and Records of Bees. — LXXKII. 

 By T. D. A. CocKERELL, University of Colorado. 



Exomalopsis mellipes, Cresson. 



The male, not before known, has been collected by H. TI. 

 llyde at Medellin, Vera Cruz, Mexico (Baker coll., 1785). 

 It runs in Friese's table of males to E. planiceps, Siu., but 

 is larger, with red legs. 



Exomalopsis vincentana, Cockerell. 



The male, previously unknown, was collected by H. II. 

 Smith on the windward side of St. Viuceut. It is hardly 

 5 mm. long, and there is much black hair oii mesotjioiax, 

 scutellum, and legs. It is nearest to E. ylobosa, but dis- 

 tinguished at once by the ochreous-yellow tarsi. 



Tlu^re is a series of small Exomalopsis (including Anthu- 

 phorula), which are superficially similar and easily contused. 

 They may be separated by the following tabic, based ou 

 (eniales : — 



Second abdominal segment with oblique 

 stripes of light hair at .«iiles, but no apical 

 band ] . 



