Vol. XXVIII. pp. 125-126 May 27, 1915 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



THREE NEW SUBSPECIES OF BIRDS FROM EASTERN 

 MEXICO AND YUCATAN. 



BY OUTRAM BANGS. 



Of the three birds here provided with new names one is a 

 well-marked subspecies of Tityra semifasciata, inhabiting Yucatan, 

 characters for which have already been indicated l)y Ridgway. 

 Another is the resident form of the American Robin of Southern 

 Mexico, the peculiarities of which have been noticed by both 

 Ridgway and Phillips. The third is a strongly characterized 

 northeastern form of the little blue grosbeak of INIexico — 

 Cyanocompsa parellina. 



Tityra semifasciata deses subsp. nov. 



Type from Chichen Itza, Yucatan. No. 40,079, Museum of Compara- 

 tive Zoology, adult cf. Collected February 26, ]!I04, by L. J. Cole. 



Characters. — Similar to T. semifasciata personata. (J. & S.) but smaller 

 and paler. Adult cJ witli gray of upper parts paler, and with the under 

 parts white, less grayish. Adult $ with the color of upper parts pale, 

 more uniform and decidedly more brownish. 



Measurements. — In four adult c? topotypes, wing, 125.5 to 127.5; tail, 

 73 to 75; tarsus, 24 to 26; exposed culmen, 23 to 24. In three adult ? 

 topotypes, wing, 121 to 124; tail, 70.5 to 72; tarsus, 25.5 to 28; exposed 

 culmen, 24-25.5. 



Turdus migratorius phillipsi* subsp. nov. 



Type from Las Viegas, Vera Cruz, Mexico, adult $ , No. 2130. Bangs 

 Coll. in Mus. Comp. Zool. Collected April 20, 1897, by C. B. Isham. 



Characters. — Similar in color and markings to T. migratorius pro- 

 pinquus Ridg., but decidedly smaller with relatively larger bill. Type, 

 adult 9. Wing, 126; tail feathers, S6; tarsus, 33; exposed culmen, 19. 

 For further measurements and remarks, see Ridgway, Birds of North and 



• Named for my colleague, Dr. John C. Phillips. 



23— Pkoc. Biol. Soc. Wash., Vol. XXVIII, 1915. (125) 



