286 TEOCHILIDiE. 



$ mari similis, sed reotricum latereilium apicibus pallidioribus. (Descr. maris et feminoe ex Coban, Guatemala. 

 Mus. nostr.) 



Eab. Mexico [de Oca 12), Misantla (F. B. G.% Cordova ^\ Playa Vicente (Boucard^), 

 Sochiapa {M. Trujillo^), Guichicovi {Sumichrasf^^ is), Chimalapa ( PF. B.Bichard- 

 son^), Temax in Yucatan {G. F. Gaunter^) ; British Honduras, Corosal {Boe^), 

 Belize, Cayo and Great Southern Pine-ridge {Blancaneaux ^) ; Guatemala 

 {Skinner % Coban 1 ^ Choctum, Yzabal^ {0. S. & F. D. G.); Honduras {G. 

 Taylor i"), Truxillo (Townsend, in U. S. Mt. Mus.), Santa Ana {Wittkugel, in V. S. 

 Nat. Mus.); Nicaragua, LaLibertad and Santo Domingo in Chontales, Matagalpa 

 {W. B. Bichardson), Chontales (Belt^). 



This distinct species of Agyrtria was discovered by Delattre in Mexico 1. It is 

 there a common species from the middle of the State of Vera Cruz southwards to the 

 eastern side of the Isthmus of Tehuantepec, occurring also in Yucatan and thence 

 through British Honduras to Eastern Guatemala and Nicaragua. It is very abundant 

 in the neighbourhood of Coban at an elevation of about 4300 feet in the month of 

 November, and we also met with it at Yzabal in September at nearly the sea-level. At 

 the latter place it frequented the flowers of the underwood under the forest trees. At 

 Coban the flowering Salvice were the chief attraction. 



A. Candida is the only species of Agyrtria which has the crown of nearly the same 

 colour as the back and the whole of the under surface, including the under tail-coverts, 

 pure white. The sexes are much alike, but the female may be distinguished by the 

 tips of the lateral rectrices being paler than in the male. 



b'". Sexus dissimiles. 



AEINIA. 



Arinia, Muls. "Ann. Soc. Linn. Lyon^ 1877, Oct. 12"; Salv. Cat. Birds Brit. Mus. xvi. p. 193. 



This genus was based by Mulsant upon a bird discovered by M. Boucard at Punta 

 Arenas in Costa Eica. It is apparently closely allied to Agyrtria, but a difference in 

 the coloration of the sexes separates the two forms. 



Arinia is restricted in its range to a limited district of Costa Eica, in which country 

 neither Agyrtria nor Cyanomyia occur. 



1. Arinia boucardi. 



Arinia boucardi, Muls. Ann. Soc. Linn. Lyon, 1877, Oct.'; Elliot, Syn. Troch. p. 209 '; Sharps, 



in Gould's Mon. Troch., Suppl. (April 1885)'; Salv. Cat. Birds Brit. Mus. xvi. p.'l93*. 

 Arena boucardi, 'M.\x\s. Hist. Nat. Ois.-Mouches, iv. p. 194, 1. 121 '. 

 Sapphironia boucardi, Boucard, P. Z. S. 1878, p. 71 \ 

 " Male. Upper surface and flanks bronzy green, darkest on the head. Throat and breast shining bluish green. 



