298 DIPTERA. 
Presidio (Forrer), Jalisco, Atoyac in Vera Cruz (Schumann), Cuernavaca in Morelos, 
Venta de Zopilote, Amula, and Xucumanatlan in Guerrero, Teapa in ‘Tabasco 
(H. H. Smith), Northern Yucatan (Gauwmer); Costa Rica, Caché (Rogers).—Evrors '. 
Several specimens of both sexes. They agree with European ones, except that 
in many of them the rufous coloration of the oral margin is extended over the whole 
face; the antenne are more or less rufous, and in the females the vertex is usually 
metallic. Dorso-central bristles are present. 
2. Lucilia cornicina. 
Musca cornicina, Fabr. Spec. Ins. ii. p. 488+; Syst. Antl. p. 289°. 
Lucilia cornicina, Schin. Faun. Austr., Dipt.i. p. 590°; van der Wulp, Tijdschr. voor Ent. xxvi. 
p: 39 *. 
Musca cesarion, Meig. Syst. Beschr. v. p. 57°. 
Lucilia carolinensis, Rob.-Desv. Essai sur les Myod. p. 457°. 
Somomyia argentifera, Bigot, Ann. Soc. Ent. Fr. 1877, p. 251°. 
Hab. Norta Amertca, Quebec*, Carolina ®— Mexico, Ciudad in Durango (forrer), 
Santiago Iscuintla in Jalisco (Schumann), Amula, Xucumanatlan, and Omilteme in 
Guerrero (H. H. Smith), Patzcuaro (Ff. D. Godman), Jalapa (M. Trujillo), Orizaba 
(F. D. Godman and H. H. Smith).—Evrors *?°. | 
Several specimens of both sexes. 
The tegule are white, but seen from behind they often appear to have a yellowish 
tinge (argentifera, Big.). Dorso-central bristles are present. 
In addition to these cosmopolitan species, which are abundantly represented in 
the Central-American collections before me, there are still a few specimens which 
I have attempted in vain to identify with any of the described forms. I abstain, 
however, from naming them, preferring to give at present no more than a brief 
indication of these forms, because I have but a single specimen or only one sex at 
my disposal. 
Lucilia, sp.—Two females from Mexico, Northern Sonora (Morrison) and Mexico 
city (1. H. Smith). 
Size of ZL. ewsar, and with the general coloration of the body similar, but the head 
blackish and the front much broader; antenne and palpi rufous. The dorso-central 
bristles are inconspicuous, being not longer than the pilosity of the thoracic dorsum ; 
the subhumeral cicatrix is yellow (in ZL. cesar and L. cornicina the dorso-central bristles 
are distinct and the subhumeral cicatrix is black). 
