°j, ) ' 1: , ' I'i iii: . Bird. Collected in Quintana Roo, Mexico. 375 



the intermediates mod Dearly resembled X. f. flavigaeter. The fifth bird 

 jn.-t referred to U essentially typical of X.f. yucatanemis in every respect. 

 Sittasomus sylvioides sylvioides Lafresnaye. 2, a ? and 1 undeter- 

 mined, Xcopen, February L8and March 2. 



FUKSABHDM. 



Synallaxis erythrothorax Sclater. 1 9, Xcopen, .March 1. Iris rod. 

 Xenops genibarbis mexicanus (Sclater). 1 9, 30 miles north of 

 Camp Mengel, April 17. 



I'OKMH AlUIDfi. 



Formicarius moniliger intermedius Ridgway. 1 o", Xcopen, Febru- 

 ary 19. 



Thamnophilus doliatU3 yucatanensis Ridgway. 6, both 

 Xcopen, February II, 13,22; March 2; Camp Mengel, March 26; April 

 5. Jris lemon, feet and legs bluish. 



COTINGIDiE. 



Tityra semifasciata personata (Jardine k Selby). 4, both sexes, 

 Xcopen, February 28, March 3 and 4; Camp Mengel, March 25. Iris 

 brown, feel and le^s lead, base of bill and skit) of face red. 



Platypsaris aglaiaa sumichrasti Nelson. 1 9, Camp Mengel, March 

 31. 



Attila citreopygus salvini Ki<l^way. 2, a d\ 1 undetermined. 20 

 mil"- north of Bacalar, January 27; Camp Mengel, March 25. Eyes 

 brown; taiUS bluish. 



1'lI'KID^E. 



Manacus candei (Parzudaki). 5, both sexes, Xcopen, February 12, 

 March 5; Camp Mengel, March 31. Legs orange. 



TYRANNID.fi. 



Muscivora tyrannus (Linnaeus). 4, both sexes, Camp Mengel, Janu- 

 ary .'il ; March 15 31 . 



Tyrannus melancholicus satrapa (Cabanis and Heine). 5, both 

 1 nip Mengel, January 15 and 21 ; March 11, Xcopen, February 21 

 and 2 



Pitangus sulphuratus derbianus (Kaup). 4, both sexes, Santa Lucia, 

 January 22; Camp Mengel, February 1; March 15 and 28. 



Myiodynastes luteiventris Sclater. 2 d\ Camp Mengel, April 5 and 

 23. 



