abstracts: ORNlTHOIyOGY 325 



Deridraica coronata hooveri by Mr. R. C. McGregor has not been cur- 

 rently recognized, but a thorough study of a large amount of material 

 proves that it is readily separable by both size and color. The redpoll 

 known as Acanthis hornemanni exiUpes Coues has recently been claimed 

 to be a subspecies of Acanthis Unaria, but since the two breed in the 

 same localities over wide areas they must be specifically distinct. 



H. C. O. 



ORNITHOLOGY.— MMtowJa ornithologica. IV. Harry C. Ober- 

 HOLSER. Proc. Biol. Soc. Wash. 31: 125-126. November 29, 

 1918. 



By the change of the generic name Euphonia to Tanagra the current 

 names of several species and subspecies become untenable. By this 

 transfer to the genus Tanagra, the Euphonia vittata of Sclater becomes 

 preoccupied and is here named Tanagra catasticta. For a similar reason 

 Euphonia aurea pileata Berlepsch is renamed Tanagra aurea cynophora; 

 Euphonia violacea magna Berlepsch must be known under the new name, 

 Tanagra violacea pampolla Oberholser; Euphonia laniirostris peruviana 

 Berlepsch and Stolzmann must be called Tanagra laniirostris zopholega 

 Oberholser; and Euphonia olivacea Desmarest must be replaced by 

 Tanagra minuta (Cabanis). H. C. O. 



ORNITHOLOGY. — The migration of North American birds. 11. The 

 scarlet and Louisiana tanagers. Harry C. OberhoIvSER. Bird 

 Lore 20: 16-19. 1918. 



This paper contains tables of migration data for both spring and 

 fall, together with the summer and winter distribution of Piranga 

 erythromelas and Piranga ludoviciana. These data are from localities 

 in the United States and Canada, and, as in the previous paper, cover 

 the earliest, latest, and average dates of arrival and departure in both 

 spring and autumn. ^ H. C. O. 



ORNITHOLOGY. — Washington region [October to November, IQ17]. 

 Harry C. Oberholser. Bird Lore 20: 22. 19 18. 



During October and November, 19 17, notwithstanding the unusually 

 cold weather, few northern birds made their appearance. Strangely 

 enough some birds remained later than is common, and one species, 

 Pisobia minutilla, broke all its records, remaining until November 

 22, nearly a month beyond its previous latest date. On the other hand, 



