1919- CATALOGUE OF BIRDS OF THE AMERICAS CORY. 341 



Piaya cayana insulana" Hellmayr. TRINIDAD SQUIRREL CUCKOO. 



Piaya cayana insulana HELLMAYR, Nov. Zool., XIII, 1906, p. 43 (Trinidad); 

 STONE, Proc. Acad. Nat. Sci. Phila., 1908, p. 498; CORY, Field Mus. Nat. 

 Hist., Orn. Ser., I, 1915, p. 309. 



Range: Island of Trinidad. 



*Piaya cayana cearse Cory. b CEARA SQUIRREL CUCKOO. 



Piaya cayana ceara CORY, Field Mus. Nat. Hist., Orn. Ser., I, p. 304 (Jua, near 

 Iguatu, Cear, Brazil); Id., p. 308 (key to species). 



Range: Northeastern Brazil (Province of Ceard). 

 5: Brazil (Jua and Quixada, Province of Ceard). 



*Paiya cayana pallescens (Cabanis and Heine ). PALE SQUIRREL 

 CUCKOO. 



Pyrrhococcyx pallescens CABANIS and HEINE, Mus. Hein., IV, 1862, p. 86 ("North 



Brazil "= Province of Bahia). 

 Piaya cayana pallescens STONE, Proc. Acad. Nat. Sci. Phila., 1908, p. 500; CORY 



Field Mus. Nat. Hist., Orn. Ser., I, 1915, p. 308. 



(?)Piaya cayana cabanisi ALLEN, Bull. Am. Mus. Nat. Hist., V, 1893, p. 136 

 (Chapada, Matto Grosso, Brazil). 



Range: Central and eastern Brazil north about to Pernambuco. 

 4: Brazil (Santo Amaro; Andarahy, in Prov. of Bahia). 



*Piaya cayana venezuelensis d Cory. VENEZUELAN SQUIRREL CUCKOO. 



Piaya cayana insulana HELLMAYR: Under parts similar to P. c. cayana, but 

 differs in brighter coloration of the upper parts and in having the rufous coloration 

 of the second and third tail feather confined to the outer web. The size is somewhat 

 smaller. 



b Piaya cayana ceara CORY: Belongs in the group with more or less of under 

 surface of rectrices distinctly rufous or rusty (columbiana, venezuelensis, etc.). 

 Back approaching hazel brown, but coloration duller and less rufescent than in 

 P. c. columbiana; under parts much paler. Nearest to P. c. pallescens; throat a. c in 

 pallescens; middle of abdomen ashy white; thighs, lower abdomen, and under tail 

 coverts between pale neutral gray and pallid neutral gray, much paler th' n in any 

 other known form. A specimen from Pernambuco in the U. S. National Museum 

 (No. 39704) appears to be intermediate between this form and P. c. pallescens, but 

 approaches nearer to pallescens from Bahia; compared with P. c. ceara from Jua, 

 the Pernambuco bird has the upper parts less rufescent; the upper surface of the 

 rectrices darker and more purplish, and the under surface of the rectrices much less 

 rufous, but the coloration of the lower belly, under tail coverts, and pale flanks 

 approach nearer to ceara. 



Piaya cayana pallescens (CABANIS and HEINE) : Back approaching hazel brown 

 throat approaching vinaceous fawn, but with a faint tinge of ochraceous (paler and 

 quite different from P. c. cayana) ; lower abdomen neutral gray shading into slightly 

 darker neutral gray on under tail coverts; under surfaces of rectrices only tinged with 

 rufous and not strongly rufous as in P. c. ceara. Specimens from Bahia apparently 

 do not differ in coloration from those from Chapada, Matto Grosso, but they average 

 larger. If they prove separable, Allen's name cabanisi will stand for the Matto 

 Grosso form. 



d Piaya cayana venezuelensis CORY: This form is apparently restricted to the low 

 heavily forested region south of Lake Maracaibo, and is readily distinguished from 

 P. c. columbiana by its chestnut bay upper parts and generally darker coloration 

 and from P. c. cayana and P. c. mesura by the rusty brown marking on the under 



