162 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



less abruptly flattened, with terminal margin sharp and truncate; 

 mandibular tomium more or less deeply incised (concave) subter- 

 minally, straight to strongly convex proximally. Wing moderately 

 long, pointed, the longest primaries exceeding distal secondaries by 

 more than two-fifths (but less than half) the length of wing; eighth 

 and ninth, or ninth, primaries longest, the tenth (outermost) longer 

 than seventh (equal to eighth in E. weddeUii), the seventh with tip 

 abruptly attenuated. Tail shorter than wing (very nearly as long in 

 E. solstitialis) , graduated for a little more than one-third to slightly 

 more than half its length, the rectrices strongly tapering distally, 

 narrowly rounded (the middle pair sometimes subacuminate) at tip. 

 Tarsus not longer (sometimes shorter) than outer hind toe without 

 claw. 



Ply/mage and coloration. — Cere with greater part naked, fully 

 exposing nostrils; orbital region naked; chin naked, or with thin 

 downy feathers. In all the Middle American (and some extralimital) 

 species, the plumage without any red; above, including tail, green, 

 the primaries more or less distinctly bluish terminally; under parts 

 paler green or partly olive or brownish; some species with dull orange 

 or salmon color on forehead or beneath eyes, some with greater part 

 of head orange-yellow. Some South American species have more or 

 less of red in the plumage, one (E. weddeUii) a gray head, while one 

 (E. solstitidlis) has the prevailing colors orange and yellow. 



(As to coloration, all the species of Eupsittula differ from all those 

 of Aratinga in having (1) the under surface of the remiges dusky or 

 slaty instead of olive-yellowish, and (2) in having the distal second- 

 aries and distal portion of -proximal primaries deep blue, instead of 

 green.) 



Range. — Southern Mexico to eastern Peru, Bolivia, southern Brazil, 

 and Guiana; also islands of Jamaica and St. Thomas, West Indies, 

 and Curacao, Aruba, and Bonaire, off Venezuela. (About fourteen 

 species.)" 



o Several species which may be referable to this genus I have not seen, namely, •# 

 Psittacus guarouba Gmelin and Psittacus cactorum Kuhl, all of which are placed in 

 Conurus (i. e., Aratinga) by modern authorities. 



The genus Eupsittula, as here denned, is possibly too comprehensive, and may 

 require further restriction. E. nana, for example, has the bill much larger and rela- 

 tively deeper than any of the others, though exceedingly like E. astec in coloration. 

 E. ocularis has the culmen rounded (transversely) in conspicuous contrast with E. nana 

 and E, astec, in which it is conspicuously flattened, with a broad though shallow groove 

 separating two distinct lateral ridges; other species are, however, intermediate in 

 regard to this character. In the South American species having much red and yellow 

 in the plumage (E. jendaya, E. auricapilla, and E. solstitialis) the tail is relatively 

 longer and more graduated, but otherwise the details of form are essentially as in 

 typical members of the group. 



