18 TYRANNIDZ. 
1. Colopterus pilaris. 
Todus pilaris, Licht. Mus. Berol. (fide Cabanis*). 
Colopterus pilaris, Cab. Arch. f. Naturg. 1847, i. p. 2538, t.5°; Cab. & Heine, Mus. Hein. ii. 
p. 52°; Salv. P. Z. S. 1867, p.147*; Salv. & Godm. Ibis, 1880, p. 124°; Scl. Cat. Birds Brit. 
Mus. xiv. p. 90°. 
Todirostrum exile, Scl. P. Z. S. 1857, p. 83, t. 125. f. 37; Cassin, Pr. Ac. Nat. Sc. Phil. 1860, 
p. 144°. 
Todirostrum megacephalum, Lawr. Ann. Lyc. N. Y. vii. p. 830 (nec Swainson) °. 
Supra olivaceus, pileo vix obscuriore; alis et cauda fusco-nigris, extrorsum pallide olivaceo limbatis; loris et 
capitis lateribus pallide fuscis: subtus margaritaceo-albus ; hypochondriis flavido tinctis ; gutture et pectore 
griseo obsoletissime striolatis: rostro nigro, mandibule basi pallida; pedibus carneis. Long. tota 3:5, ° 
alee 1-7, caude 1-5, rostri a rictu 0-5, tarsi 0°65. (Descr. maris ex Santa Fé, Panama. Mus. nostr.) 
Hab. Panama, Santa Fé (Arcé*), line of railway (M‘Leannan °).—Cotomsta $6 7 8, 
The headquarters of this curious species seem to be Colombia, where it has been 
noticed in several places. Specimens occur, but not very frequently, in the trade 
collections made in the neighbourhood of Bogota, but the bird is more common in the 
northern parts of the country. Within our region it has been observed by two collectors 
—M‘Leannan, who met with it on the line of the Panama Railway, and sent specimens 
to Mr. Lawrence, in whose lists they appear as Todirostrum megacephalum®; and Arcé, 
who sent us two male specimens from Santa Fé in the State of Panama‘. Mr. C. J. 
Wood says he met with this species near Carthagena, in the bushes and low trees, 
constantly flying after insects, and uttering a single chirp, by which it could easily be 
traced and shot®. He frequently saw it in the month of April. Mr. Simons, who sent 
us specimens from Minca in the Sierra Nevada of Santa Marta, says that the iris in life 
is white, shading into brown or yellowish white >. 
LEPTOTRICCUS. 
Leptrotriccus, Cabanis & Heine, Mus. Heim. i. p. 54 (1859) (type Muscicapa sylviola, Licht.) ; 
Scl. Cat. Birds Brit. Mus. xiv. p. 99. 
Leptotriccus, which was founded on the Brazilian ZL. sylviola, contains but two 
species, that just named and L. superciliaris of the State of Panama. 
With a bill similar to that of Lophotriccus the rictal bristles appear to be longer, 
there is no occipital crest, the 2nd, 3rd, 4th, and 5th quills are nearly equal, 1st—S8th, 
the tail is long and very slightly rounded, and the feathers wider than in Todcrostrum, 
nearly = wing, the tarsus = 4 wing. | 
1. Leptotriccus superciliaris. (Tab. XXXVI. fig. 2.) 
Leptotriccus superciliaris, Scl. & Salv. P. Z. S. 1868, p. 3897; Salv. P. Z. S. 1870, p. 196°; Scl. 
Cat. Birds Brit. Mus. xiv. p. 100°. 
Supra viridi-olivaceus ; alis caudaque nigricantibus, flavicanti-olivaceo extrorsum limbatis; pileo et collo postico 
