242 CQ@REBIDA. 
1. Diglossa baritula. 
Diglossa baritula, Wag). Isis, 1832, p. 281"; Hahn, Atlas, Heft 8, t. 1, 2?; Hartl. Rev. Zool. 1842, 
. p- 56°; Gray & Mitch. Gen. B. t. 42. f. 1, 2*; Cab. Mus. Hein. i. p. 97°; Bp. Consp. i. 
p. 401°; Scl. P. Z. 8. 1856, p. 286"; 1859, pp. 364°, 376°; 1864, p. 173"; Ibis, 1875, 
p. 207"; Scl. & Saly. Ibis, 1859, p. 14°; Sumichrast, Mem. Bost. Soc. N. H. i. p-. 548”; 
Duges, La Nat. i. p. 140"; Salv. Cat. Strickl. Coll. p. 174. 
Agrilorhinus sittaceus, Bp. Nouv. Ann. Sc. Nat. i. p. 408%. 
Uncirostrum sittaceum, Lafr. Rev. Zool. 1839, p. 292%. 
Uncirostrum brelayi, Lafr. Rev. Zool. 1839, p. 100°. 
Supra saturate ardesiaca, capite nigricante, alis et cauda nigricantibus extus dorsi colore limbatis; subtus 
ferruginea, gula et cervicis lateribus ardesiacis ; rostro corneo, mandibule basi pallidiore ; pedibus corylinis, 
Long. tota 4-4, alee 2-25, caudew 1:8, rostri a rictu 0°5, tarsi 0°6. (Descr. maris ex Jalapa, Mexico. Mus. 
nostr.) 
2 fusca; secundariis et tectricibus alarum rufescente limbatis, subtus sordide fusca, ferrugineo tincta. (Deser. 
feminz ex Calderas, Guatemala. Mus. nostr.) 
Hab. Mexico’ 1718 (Petz 1, Sirletto 1), valley of Mexico (White, le Strange), alpine 
region of Vera Cruz (Sumichrast'*), Jalapa (de Oca 8), Juquila and Toton- 
tepec (Boucard °); Guatemata (Constancia 12%, Skinner 1), Quezaltenango, 
Calderas on the Volcan de Fuego, Volcan de Agua, Santa Barbara in Vera Paz, 
Coban (0. 8. & F. D. G.). 
Guatemalan specimens differ slightly from Mexican in that the slate-colour of the 
throat in the male extends further towards the chest, but this difference hardly merits 
nominal acknowledgment. 
Liglossa baritula was discovered in Mexico by Dr. Petz, whose specimens were 
placed in the Museum at Wiirzburg. They were described by Wagler in 1832 1, 
and subsequently figured by Hahn2. In 1838 Bonaparte described the same species 
as Agrilorhinus sittaceus 6; and in 1839 Latresnaye named it Uncirostrum brelayi, 
The latter name was shown by Dr. Hartlaub in 1842 to belong to the same species as 
that described by Wagler, whose title has the priority °. 
In Mexico the range of D. baritwla seems confined to the more southern portions of 
the country. Mr. White and Mr, le Strange both obtained Specimens in the Valley of 
Mexico; but we have no record of its being found northwards of this point. In the 
State of Vera Cruz Sumichrast considered it a denizen of the alpine region, where he 
found it at an altitude of nearly 10,000 feet 13, M. Sallé obtained it near Cordova ‘, 
de Oca in the neighbourhood of Jalapa*, and M. Boucard at J uquila and Totontepec, 
both in the State of Oaxaca 9. 
In Guatemala we found it in the forests of the uplands and in the belts which 
surround the volcanoes between the elevations of 7000 and 10,000 feet above the sea. 
Here it frequents bushes and the edges of the forest, and is restless in search of insect- 
food amongst the flowers, leaves, and twigs. It is usually found singly or in families. 
Salmon obtained the eggs of Diylossa albilateralis and of D. personata in the 
