RENDAHL, BIRDS FROM PANAMA, COSTA RICA AND NICARAGUA. 25 



fluent on the nape. For the reat it agrees vvith the description 

 of the young given by Ridgway (op. cit.)- 



137. Pitangus sulphuratus derbianus Kaup. — 1 o* 

 (U. Z. M.), C. R., Siquirres, Caiio Secco, Aug. 18. 



138. Muscivora forficata Gmelin. — 2 $$, Nic, G. 

 Granada, Dec. 26 and 28; 1 $ (U. Z. M.), same locality, 

 Dec. 21; 1 $, young, Nic, G. Masaya, Dec. 15; 1 ?, young, 

 Nic, R. Ometepe, Muyogalpa, Jan. 12. 



The young ones have the upper parts light grayish 

 brown, not suffused with pinkish; rectrices brownish, tho 

 grayish margins on the middle ones indistinct. 



139. Myiarchus brachyurus Ridgway, — 1 (^, Nic, 

 Ometepe, the Volcano, 400 feet, Jan. 31; 1 c?, Nic, Ometepe, 

 the Volcano, 1,500 feet, Jan. 29; 1 J, Nic, G. Masaya, Dec. 

 17. »Iris brown.» 



As Bångs (Proc Bio]. Soc Wash. 1909, p. 34) and 

 Carriker (1. c page 694) remark, this form cannot be a 

 subspecies of 31. nuttingiy having practically the same range 

 as the latter, and like the authors quoted I therefore accept 

 Nelson's arrangement in placing it as a separate species. 



Average measurements: wing 95,6 (94 — 98); culmen (2 

 specimens) 21; tarsus 20 (20—22). 



140. Myiarchus ferox panamensis Lawr. — 1 $, Pa., 

 Panama Viejo, Febr. 26; 1 ?, Pa., Culebra, no date. 



141. Myiarchus lawrenceii nigricapillus Ca b. -— 1 c?, 

 Nic, San Juan del Norte, Oct. 23; 1 2, Nic, G. Masaya, 

 Dec 18. 



142. Myiarchus lawrenceii bangsi Nelson. — 4 <i(^, 

 C. R., Talamanca, Sipurio, Aug. 31, Sept. 1 and 3. 



There are in the literature very diverging statements 

 as to the occurrence of Bångs' Flycatcher in Costa Rica. 

 Ridgway (op. cit. IV, 1907, p. 646) gives the range of it in 

 that country as the eastern part thereof. To this Carriker 

 (1. c page 692) remarks, that all birds which he examined 

 from the Carribean slope were typical 7iigricapiUvs, .nnd that 

 M. L bangsi is found only in the extreme south-western 



