276 SUPPLEMENT. 



wings differ from the figure in having the first posterior discal and the fourth posterior* 

 cells brown at the base, the anal cell and anal angle almost wholly brown. A specimen 

 from Brazil, in my collection, which I identify as belonging to this species, is marked 

 more nearly as in Macquart's figure, and it has the tip of the abdomen wholly silvery. 

 The anal cell in both specimens is remarkably narrow. 



LEPIDANTHRAX (p. 107). 



Lepidanthrax disjuncta (p. 108). 



To the localities given, add : — Mexico, Chilpancingo and Hacienda de la Imagen in 

 Guerrero (H. II. Smith). 



Three specimens. L. disjuncta bears the same relation to its congeners that Exoptata 

 divisa, Coq., does to the species of Exoprosopa. 



Lepidanthrax proboscidea (p. 109). 



? Anthrax proboscidea (Loew), Coquillett, Trans. Am. Exit. Soc. xiv. p. 168 \ 

 Lepidanthrax proboscidea, var., O. Sack, antea, p. 110 2 . 



To the localities given, add : — United States, Arizona 1 . — Mexico, Hacienda de la 

 Imagen and Acaguizotla in Guerrero (H. H. Smith). 



Four specimens from Guerrero, apparently belonging to the same species as those 

 mentioned by Osten Sacken 2 from the Tres Marias Is. 



ANTHRAX (p. 111). 

 Isopenthes, antea, p. 96. 



Anthrax cyanoptera (p. 115). 



To the locality given, add: — Mexico, Tepetlapa and Palo Blanco in Guerrero 

 (H. H. Smith). 



1 (a). Anthrax (Isopenthes) blanchardiana. 



Isopenthes blanchardiana, O. Sack, antea, p. 96. 



To the localities given, add : — Mexico, Xucumanatlan in Guerrero [H. H. Smith), 

 Puebla (E. D. Godman). 



Six specimens, in one of which there are but two submarginal cells. The very great 

 variability in this respect convinces me that the genus Isopenthes does not present 

 sufficient claims for generic independence. 



l (b). Anthrax (Isopenthes) sackeniana, sp. n. 



<S . Black, front with black hair, and golden tomentum below. Face projecting conically. Antennae with a 

 slender style, not twice the length of the bulbous portion. Proboscis withdrawn within the oral cavity. 



