22 TYRANNIDA. 
oval, and surrounded by membrane, the rictal bristles rather feeble; the tarsi and feet 
are moderately stout, the former covered with well-defined scutelle, the outer toe is a 
little longer than the inner; the wing is rounded, 4th and oth quills longest, 3rd=6th, 
2nd =7th, lst = longest secondaries ; the tail is moderate, nearly square at the end, 
> 3 tarsus, > # wing. 
1. Mionectes olivaceus. 
Mionectes striaticollis, Lawr. Aun. Lyc. N. Y. vii. p. 8281; Scl. & Salv. P.Z.S. 1864, p. 358°; 
1868, p. 628 * (nec d’Orb. & Lafr.). 
Mionectes olivaceus, Lawr. Ann. Lyc. N. Y. ix. p. 111*; Salv. Ibis, 1869, p. 314°; P. Z.8. 1870, 
p. 196°; Boucard, P.Z. 8. 1878, p. 637; Scl. Cat. Birds Brit. Mus. xiv. p. 112°. 
Supra viridi-olivaceus ; capite summo vix obscuriore; alis et cauda umbrino-fuscis, extrorsum olivaceo limbatis, 
illis introrsum cervinis ; macula postoculari flavida: subtus gutture toto, cum pectore et hypochondriis 
olivaceis, plumis omnibus medialiter flavis ; abdomine medio et subalaribus flavis: rostro nigro, mandibule 
basi pallida; pedibus corylinis. Long. tota 5°0, ale 2°75, caude 2°15, rostri a rictu 0°6, tarsi 0°6. 
(Descr. maris ex Chiriqui, Panama. Mus. nostr.) 
© mari similis. 
ab. Costa Rica, Barranca *, Dota *, Buena Vista (Carmiol), San Mateo (Boucard*) ; 
Panama, Volcan de Chiriqui, Chitra, Boquete de Chitra, Calovevora (Arcé®), Lion 
Hill (M‘Leannan ! *)—Vunezveva *; Ecuapor ®. 
This Mionectes is readily distinguished from its near ally M. striaticollis by its olive 
head and throat, which in the other species are slate-coloured. The distribution of the 
two forms is rather curious. J. striaticollis spreads from Bolivia and Peru to 
Colombia, being probably found in Western Ecuador. It occurs in the trade collec- 
tions of Bogota, and Salmon found it near Medellin in the Cauca valley of Colombia ; 
this seems to be its most northern limit. /. olivaceus spreads over the whole of Costa 
Rica and the State of Panama; it occurs again in Venezuela and in Eastern Ecuador. 
We have no records of the habits of JZ. olivaceus; but M. striaticollis according to 
Stolzmann* has a considerable range in the mountains of Peru, being found as high as 
9300 feet above the sea at Cutervo. He adds that it frequents thick forests, keeping 
amongst the low herbage, but sometimes ascending into the upper part of the higher 
trees. Salmon obtained the eggs of WV. striaticollis at Santa Elena in the Cauca valley ; 
they were pure white. 
2. Mionectes oleagineus. 
Muscicapa oleaginea, Licht. Verz. Doubl. p. 55+. 
Mionectes oleagineus, Cab. in Tsch. Faun. Per., Orn. p. 148°; Scl. P.Z.S. 1856, p. 296°; Cat. 
Birds Brit. Mus. xiv. p. 112*; Scl. & Salv. P. Z.S. 1864, p. 358°, 1879, p. 512°; Salv. 
P. Z.S. 1867, p. 147", 1870, p. 196°; Nutt. & Ridgw. Pr. U. S. Nat. Mus. vi. p. 402°; 
Tacz. Orn. Pér, ii. p. 245 7°. 
* Tacz. Orn. Per. i. p. 244, 
