198 MR. 0. SALVIN ON THE BIRDS OF VERAGUA. [Mar. 24, 
number of specimens have the outer web of the ordinary type, I 
conclude that this peculiar feature is an attribute of the male only. 
Rhynchocyclus flavo-olivaceus. 
Calovevora. 
Myiodynastes nobilis. 
Chitra ; Calobre ; Bugaba. 
102. Hypermirris HEMICHRYSUS, Cab. J. f. Orn. 1861, p. 246. 
Myjiodynastes superciliaris, Lawr. Ann. Lyc. N. Y. viii. p. 470. 
Chitra ; Calovevora ; Calobre. 
Muscivora mexicana. 
Calovevora ; Mina de Chorcha; V. de Chiriqui. 
Myiobius sulphureipygius. 
Calobre ; Bugaba; V. de Chiriqui. 
103. Myionrus arricaupus, Lawr. Ibis, 1863, p. 183. 
Calovevora. 
This species, as well as the last mentioned, occur in Veragua. A 
single specimen from the above locality quite agrees with Panama 
specimens. 
Myiobius nevius. 
Calovevora. 
Myiobius erythrurus. 
Bugaba. 
104. MirREPHORUS AURANTIIVENTRIS, Lawr. Ann. Lyc. N. Y. 
viii. p. 174. 
Calovevora. 
105. EmMpIDONAX ATRICEPS, Sp. n. 
Supra fuscus: uropygio et collo postico paulo dilutioribus, pileo 
totonigro: alis et cauda nigro-fuscis, secundartis et tectricibus 
alarum majoribus sordide albo marginatis, rectricibus utrinque 
extimis extus albo limbatis: subtus ochraceo-fuscus, gula et 
ventre imo ulbicantibus, loris et macula postoculari albidis: 
campterio et subalaribus sordide albis: rostri maxilla nigra, 
mandibula flava, pedibus nigris: long. tota 4°5, ale 2°3, caude 
2:0, tarsi 0'6. 
Hab. Volcan de Chiriqui (drcé). 
Obs. Species distincta, pileo nigro facile dignoscenda. 
Arcé’s collection from Chiriqui contains two specimens of this 
species, which, though a true Hmpidonaz, is quite distinct in its 
coloration from any species 1 am acquainted with. 
106. Empiponax FLAvESCcENS, Lawr. Ann. Lye. N. Y. viii. 
p- 133. 
Calovevora; V. de Chiriqui. 
This species is closely allied to HZ. bairdi, Scl., but differs in 
