250 r.ROOKLVX INSTITUTE MUSEU-M. SCIENCE BULLETIN 2. 6 



H[eteroccrcits] angosturae Berlepsch & Leverkiihn Ornis. VI.: 1890: 

 19 (Orinoco). 

 Common about Perico and at Maipures, not noted elsewhere. 



Laniocera hvpopvrrha (Vieillot). 



Ampelis hypopyrrha Vieillot, Nouv. Diet. VIII. 1817. p. 164. 

 Laniocera hypopyrrha Berlepsch & Hartert, p. 57. 



This species was noted only once, a male having been taken at 

 Nericagua April 5, 1899.' Berlepsch and Hartert also record specimens 

 from Snapure, La Pricion and La L^nion on the Caura River. 



COTINGIDAE— COTINGAS, TITYRAS, ATTILAS, BECARDS, 



ETC. 

 Fourteen species are included in the present paper. Only eleven 

 of that number however were observed or collected by the writer on 

 the Orinoco proper, the other three species were included in the 

 Berlepsch and Hartert paper and came from points on the Caura River, 

 but as pointed out in my remarks under Tyrannidae, there are a number 

 of species included under that heading having structural characters that 

 indicate their nearer relationship to the Cotingidae. 



Key to the Species and Subspecies of Genera of Cotingidae. 



a. Tarsus pycnaspidean ' or, essentially, taxaspidean. = 



b. The plantar space on posterior side of tarsus broken up into numer- 

 ous small irregular scutella. 

 c. Rictal bristles strongly developed. 



d. Upper part of tarsus feathered in front Lathria cinerea. 



d'. Upper part of tarsus naked Pyroderus orenocensis. 



c' . Rictal bristles weak or obsolete. 

 d. Wing not more than 125 mm. 

 d' . Wing more than 125 mm. 



/. A naked space about the eye and along the sides of the neck . Gymnoderus foetidtis. 

 /'. Loral region and sides of neck feathered. 



g. With a conspicuous crest on pileum Cephalopterus ornatus. 



g'. Pileum not crested Qneriila purpiirala. 



h'. The plantar space on each side of posterior half of tarsus with a con- 

 tinuous row of rather large scutella. 

 c. Tail about as long as wing, and all the primary quills normal in 



both sexes Xenopsaris albiriucha. 



c'. Tail much shorter than the wing, and the next to the outermost 

 primary in adult male much shortened and with an acuminate tip. 

 d. Width of bill at base not greater than the depth at the same point. Plaiypsaris minor, 

 d' . Width of bill at base much greater than the depth at base. 

 e. Wing more than 95 mm. 



e'. Wing less than 95 mm Erator inquisitor erylhrogenys. 



f. Rectrices rather broadly tipped with white, buffy or rufous. 



g. Above dark grey, middle of back varied with black (male). Pachyrhamphus airicapillus. 

 g'. Above black or dull or greyish olive. 



h. Rectrices white tipped (males) Pachyrhamphus polychroplerus 



niger. 

 h'. Rectrices tipped with buff or rufous (females). 



'"The broad plantar space on posterior side of tarsus broken up into numerous small irregular or 

 roundish scutella or granules." Ridgway, Bull. 50 U. S. N. M. pt. IV. 1907. 328. 



2"The broad plantar space occupied by two or, rarely three, series of smaller, quadrate, rectangular, 

 or hexagonal scutella" Ridgway (/. c.) 



