2 INSECUTOR INSClTIit MENSTRUUS 



of the forms occurring in the United States alone, as their appearance is 

 more or less sporadic and the group only enters our country in its most 

 southern part. Tlierefore the present consideration embraces the species 

 of America as a whole. I have described as new all the species of which 

 I could not readily find descriptions. In a group like this, that has not 

 been catalogued since Guenee's time, descriptions may be easily over- 

 looked, especially if they have been recorded under other generic names, 

 £md I consequently shall not be surprised if some of my names prove to 

 be synonyms. The following table will serve to separate the species 

 known to me. 



TABLE OF THE SPECIES OF COTTON MOTHS AND ALUES 



Fore wing olive ochcrous to red-brown, with a longitudinally elliptical black 



(rarely white) stigma representing the lower segment of reniform . argillacea Hilbner 

 Fore wing without such marking. 



Outer line of fore wing straight below the cell and inwardly oblique to 

 inner margin. 

 Hind wing fuscous to blackish ..... edeMx Guenee 



Hind wing grayish red ....... hedys Dyar 



Outer line of fore wing straight below cell and perpendicular to inner margin. 

 Hind wing of male with the basal area broadly covered with dark red 

 raised scales. 

 Antennae of male thickened at basal third craaaicornis Dyar 



Antennae of male not thickened . regaliasima Dyar 



Hind wing of the male without such scales, normal, fuscous. 



Inner line of fore wing straight .... orihopaaa Dyar 



Inner line of fore wing (lexuous. 



Hind tibiae of male with fringe of hair on under side, none 



on upper; patagia broad, swollen, hairy rufeacena Schaus 



Hind tibiae of male with fringe of long hair on upper side. 



eucyatica Dyai 

 Hind tibiae of male without fringe of hair. 



Male with fovea at base of costa below containing 

 many broad scales ; medium sized species. 

 Subterminal line of fore wing blackish, macular. 



gymnopua Dyar 

 Subterminal line a broad smooth shade. 



Small ; fringe of fore wing white at base, 



spotted . stigmocraapia Dyar 



Larger ; fringe whitish outwardly, not sf>otted. 



hemiaopis Dyar 

 Male with small fovea at base of costa below, contain- 

 ing a few broad scales; very large species. 



exaggerata Guenee 



