NORTH AMKKKAN 1)1 I'll Mi. \. ] ;j}) 



IVIoiiog;rai>h of the species beIoii;;iug to the genus 

 ANTHRAX from America north of Mexico. 



BY D. W. CUQUILLETT, 



Los Augeles, Cala. 



The genus A)ifhrax Scop., i.s easily distinguished from llie allied 

 genera 1)V the following characters : 



Second veiu issues from the third opposite or nearly opposite the small cross- 

 vein, the distance beinf; never more than the length of that (;rossvcin : usually 

 two, rarely three siibmargiual cells, four posterior cells (five in halcyon) ; anal 

 cell not widest at its apex ; antennal style minute or wanting; pnhilli wanting. 



In the " Canadian Entomologist," for 1<S86, ])age 157, I liave given 

 my reasons for uniting the genus Dipcdta O. 8. to Anthrax; in the 

 present jjaper I retain it in the sense of a subgenus for those species 

 which always have three submarginal cells. 



In the following pages I have placed an exclamation point (!) after 

 those localities from which I have obtained specimens of the different 

 species, and I have placed a similar mark after those synonymies 

 made out by myself; the other localities and synonyms are those 

 given in Osten Sacken's excellent " Catalogue of the di'scribed 

 Diptera of N. America." 



In this place I desire to express my sincere thanks to the following 

 persons who have aided me in the preparation of this paper: Dr. S. 

 W. Williston, Dr. H. A. Hagen, Mr. B. I'ickman Mann, :\Ir. E. L. 

 Keen and others. 



Anthrax ciirta Loew, and A. pertnsa Loew, are unknown to me. 

 I submitted specimens of several species to Dr. Hagen for comparison 

 with Loew's types, and he wrote me that Loew's diagonalU ditiers 

 from 8ay's edt^i^ia, and also from my perplexa. My determination 

 of bl;/niftiit(( Ijoew, Dr. Hagen writes me is correct, but this species 

 diflers decidedly from carta Loew, and saj/ata Loew, as does also my 

 scitula; flaviceps Loew differs from my Wilh'donii, nnd pertui<(( Loew, 

 although resembling my nxujator, is a different species. 



Anthrax ><i)iHom Wied., is best located in the genus Hemipeuthes 

 Loew, as it is furnished with pulvilli. 



