90 



TYRANNISE. 



81. COLOPTERUS. 



Type. 



Colopterus, Cab. in Ber. Verh. Ak. Berlin, 1845, p. 216. C. galeatus. 



Wings of Colopterus pilaris, rf et 2 . 



The exceedingly curious wing-structure at once enables us to 

 recognize the form appropriately designated Colopterus by Cabanis, 

 of which two species are known, ranging from Veragua to Amazonia. 

 Both of them have a modified Todirostrine bill, and thin tarsi with 

 the division of the scutes in front well-marked. In the male of the 

 non-crested C. pilaris the four outer primaries are diminished to 

 barely more than two thirds of their normal length, and reduced in 

 size accordingly. In the crested C. galeatus this character is not so 

 strongly pronounced and seems to embrace only the three outer 

 primaries. 



Key to the Species. 



A. Non-crested ; four outer primaries ab- 



normally reduced 1. pilaris, p. 90. 



B. Crested ; three outer primaries abnormally 



reduced 2. galeatus, p. 91. 



1. Colopterus pilaris. 



Colopterus pilaris, Cab. Wiegm. Arch. 1847, i. p. 253; Bp. Consp. i. 



p. 184 ; Cab. et Hein. Mm. Hem. ii. p. 52 ; Scl. Cat. A. B. p. 210 ; 



Scl. et Salv. Nomencl. p. 46 ; iid. P. Z. S. 1869, p. 252 (Venezuela) ; 



Salr. P. Z. S. 1867, p. 147 (Veragua) ; Salv. et Godm. Ibis, 1880, 



p. 124 (Santa Marta). 

 Todirostrum exile, Sclater, P. Z. S. 1857, p. 83, pi. exxv. fig. 3. 



Crestless ; above olive, wings and tail blackish edged with olive, 

 the margins of the wing-coverts and outer secondaries broader and 

 brighter : below greyish white ; flanks and under wing-coverts 

 yellowish ; bill brown ; feet reddish hazel : whole length 3-2 inches, 

 wing 1-7, tail 1'3. 



Bab. Veragua and Colombia. 



a, b. tf ad. sk. Santa Fe, Veragua (Arce). Salvin-Godman Coll. 



c. Ad. sk. Santa Marta, U. S. C. Sclater Coll. 



(1, e. All. sk. Minca, Santa Marta, U. S. C. Salvin-Godman Coll. 



f-i. Ad. sk. Bogota. Salvin-Godman Coll. 



j, k. Ad. sk. Bogota. Sclater Coll. 



/. Ad. sk. Bogota. Purchased. 



