24 TTEANNID^. 



LEPTOPOGON. 



Leptopogon, Cahanis in Tschudi's Fauna Per. p. 161 (1845) (type L. super ciliaris, Cab.) ; Scl. 

 Cat. Birds Brit. Mus. xiv. p. 114. 



Leptopogon contains eleven or twelve species, all belonging to the Neotropical region, 

 only three of which enter our fauna, viz. the typical species, L. svperciliaris, which 

 reaches Costa Eica and has an extended range in South America ; L. pileatus, one of 

 the doubtful forms of the Brazilian L. amaurocephalus, found only in part of Central 

 America and the Mexican State of Vera Cruz ; and L. flavovirens of Panama. 



Leptopogon has a bill shaped much as in Mionectes, but the nostrils are more linear 

 and are overhung by a membrane ; the rictal bristles are more strongly developed, the 

 tarsi comparatively shorter, and the feet weaker ; the 3rd, 4th, and 5th quills are 

 nearly equal and longest, 2nd > 6th, 1st < longest secondaries; tail long, nearly = wing, 

 ==4 tarsus. 



1. Leptopogon superciliaris. 



Leptopogon superciliaris, Cab. in Tsch. Fauna Per. p. 161, t. 10. f. 2 ' ; Salv. Ibis, 1870, p. 115 ^ j 

 P. Z. S. 1870, p. 197 ' ; Scl. & Salv. P. Z. S. 1879, p. 613 * ; Tacz. Orn. Per. ii. p. 246 ° ; Scl. 

 Cat. Birds Brit. Mus. xiv. p. 115 \ 



Supra viridi-olivaceis ; pileo toto plumbeo ; superciUis albo et cinereo variegatis ; macula auriculari fosca ; alis 

 et Cauda nigricantibus yiridi-olivaceo limbatis, iUaruin tectricibus rufescenti-ochraceo terminatis : subtus 

 gutture toto usque ad pectus griseo-olivaceo ; abdomine viridi-sulpbureo : rostro et pedibus plumbeis, 

 mandibulae basi pallida. Long, tota 5-3, alae 2-7, caudae 2-5, rostri a rictu 0-65, tarsi 0'65. (Descr. 

 exempl. ex Costa Eica. Mus. nostr.) 



Hab. Costa Rica {Carmiol ^) ; Panama, Volcan de Chiriqui, Bugaba, Calovevora {Arce ^). 

 — Colombia^ ; Ecuadoe ^ ; Peeu ^ ^ ; Bolivia ^. 



Leptopogon superciliaris was discovered by Tschudi in Peru, where it has since been 

 found in many places by Jelski and Stolzmann up to an elevation of 4000 feet. It 

 spreads southwards to Bolivia, where Buckley met with it, and it is also found in 

 Colombia, as skins of it occur in the trade collections of Bogota, In Ecuador it is found on 

 both sides of the Cordillera, as we have skins of it obtained by Buckley at Sarayacu and 

 others from the Balzar Mountains near Guayaquil ; but between the eastern and western 

 birds Dr. Taczanowski and Graf von Berlepsch trace some differences and call the 

 western one L. s. transandinus. The head seems to be a trifle greener, but the differ- 

 ence is not greater than what we find between birds of opposite sexes from the State 

 of Panama. Our Central- American examples have the tips of the wing-coverts a little 

 less rufescent than those from more southern localities, with the exception of Bolivia • 

 our only skin from that country has hardly any rufescent tint on these feathers. 



L. superciliaris probably lives in forests lying at a higher elevation than those 

 frequented by L. pileatus, but our information concerning both species is very meagre. 



