218 bulletin: museum of comparative zoology. 



36. Capsierapis flaveola (Licht.). 

 Five adults, both sexes, May 7 to 18. 



37. Ornithion pusillum (Cab. & Heine). 

 Two adults, ^ and 9 , May 5 and 13. 



38. Tyrannulus reguloides panamensis, subsp. nov. 



Three adults, ^ (J, 9, May 6 to 22. 



Tijpe. — Coll. E. A. and O. Bangs, No. 14,092, adult $, Savanna of Panama, 

 May 6, 1904. 



Characters. — Similar to true T. reguloides Ridg, of the Lower Amazons, l>ut 

 larger; paler in color below, especially on the breast and sides; back and 

 rump lighter, clearer green, the back markedly so. 



Measurements. — 



Remarks. — This little tyrant is quite different from Tyrannulus elatus 

 (Lath.), and in a former paper was referred by Bangs to true T. reguloides Ridg., 

 on the strength of one female collected by Brown at Divala, Chiriqui. The 

 three additional examples taken at Panama on the present trip, caused us to 

 doubt its identity with the form of the Lower Amazons and we sent all four 

 examples to Mr. Harry C. Oberholser who kindly compared them with the 

 type. He found the Panama bird represents a fairly well constituted northern 

 subspecies, differing from true T. reguloides in its larger sizes, paler yellowish 

 green breast, paler yellow sides, and lighter clearer green back and rump. 



39. Elainea pagana subpagana Scl. & Salv. 

 Eight adults, both sexes, May 2 to 11. 



40. Elainea albivertex Pelz. 



Seven adults, both sexes. May 2 to 21. These are very similar to the series 

 from Santa Marta on which E. sororm Bangs was based, but are slightly smaller 

 and thus approach E. sordidata of the Pearl Islands. The bill, however, is not 

 so large as in the island form. 



41. Sublegatus arenarum Saltin. 

 One adult ^, May 17. 



42. Myiozetetes cayennensis (Linn.). 

 Two adults, (J and 9 , May 2 and 7. 



