242 



C(EKEBIDiE. 



]. Diglossa baritula. 



Diglossa baritula, Wagl. Isis, 1832, p. 281 ' ; H*hn, 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. S. 1856; p. 286'; 1859, pp. 364 «, 376 ^ 1864, p. 173"; Ibis, 1875, 

 p. 207" ; Scl. & Salv. 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 ". 



Uncirostrwm 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 ardesiaois ; rostro corneo, mandibulse basi pallidiore ; pedibus corylinis. 

 Long, tota 4-4, alse 2-25, caudse 1-8, rostri a rictu 0-5, tarsi 0-6. (Deser. maris ex Jalapa, Mexico. Mus. 



nostr.) 

 2 fusca; secundariis et tectricibus alarum rufescente limbatis, subtus sordide fusca, ferrugiueo tinota. (Descr. 

 feminse ex Calderas, Guatemala. Mus. nostr.) 



Eah. Mexico ^ ^^ ^^ {Petz ^ Sirletto ^^), valley of Mexico ( White ^^, le Strange), alpine 

 region of Vera Cruz (Sumichrast ^^), Jalapa (de Oca% Juquila and Toton- 

 tepec [Boucard ^) ; Guatemala [Constancia 12 is, Skinner i^), Quezaltenango, 

 Calderas on the Volcan de Fuego, Volcan de Agua, Santa Barbara in Vera Paz, 

 Coban {0. S. & 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. 



Diglossa baritula was discovered in Mexico by Dr. Petz, whose specimens were 

 placed in the Museum at Wiirzburg. They were described by Wagler in 1832 ^, 

 and subsequently figured by Hahn ^. In 1838 Bonaparte described the same species 

 diS Agrilorhinus sittaceus '^^ ; and in 1839 Lafresnaye named it Uncirostrum hrelayi^^. 

 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. baritula 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 ^^. M. Salle obtained it near Cordova '', 

 de Oca in the neighbourhood of Jalapa ^, and M. Boucard at Juquila and Totontepec, 

 both in the State of Oaxaca ^. 



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 Diglossa albilateralis and of D. personata in the 



