167 



acic crest. Thurberiphaga appears distinct from Oslaria on frons, 

 antennae, habitus, and minor characters. 



The authors are not cognizant of the relation it bears to "Oslaria" 

 rhodoxantha Dogn. ; which, according to Hampson (1910, Cat. Lep. 

 Phal. B. M., IX, 258) has normal fore tarsi. 



T. diffusa is the Pink Boll Worm of Wild Cotton (Thurberia). 

 Economic entomologists may be interested in distributional records. 

 There is a long series in the Barnes Collection from the following 

 Arizona localities : Huachuca Mts. ; Chiricahua Mts. ; Santa Catalina 

 Mts. ; Baboquivari Mts., and Redington ; dates August and September. 

 The species appears not uncommon, Mr. O. C. Poling having sent about 

 one hundred and fifty examples taken in the Baboquivari Mts., August 

 and September, 1923. 



Hemioslaria gen. nov. 



Type H. pima sp. nov. 



Proboscis fully developed but not long ; palpi, short, upturned, rather closely 

 scaled; the second joint only reaching to about the corneous clypeal plate; the 

 third joint short, but two-thirds the length of the second joint ; frons with a 

 large, heart-shaped corneous prominence with raised edges and an additional, 

 central, vertical ridge, connected to the center of its ventral edge ; a corneous 

 plate below it ; eyes large, round, margined caudally by a row of short black 

 scales which take the place of the cilia found in that position on those Apatelinae 

 (=^Acronyctinae) assigned by Hampson to Trachea and allied genera; antennae 

 yellow, of male laminate, with short cilia, almost simple; of female, with short 

 cilia, simple ; thorax clothed with scales and hair mixed, prothorax with a slight 

 spreading crest which is easily lost, metathorax with a spreading crest; patagia 

 tending to be slightly curled upward at extremities ; tibiae moderately fringed 

 with hair, the fore coxae long, fore tibiae short, fore tarsi armed with very 

 heavy long claws; ungues rather large; abdomen with dorsal crest at base only. 

 Fore wing with the apex rounded, the termen evenly curved and not crenulate ; 

 veins 3 and 5 from near angle of cell ; 6 from slightly below upper angle ; 9 

 from 10 anastomosing with 8 to form the areole ; 7 connate with 8 + 9 from 

 the end of the areole; 11 from cell. Hind wing, veins 3, 4 from angle of cell; 

 5 obsolescent from about one-third below middle of discocellulars ; 6, 7 from 

 upper angle ; 8 anastomosing with the cell near base only. 



Hemioslaria pima sp. nov. 



Antennae yellow, dorsally partly covered with white scales, basal segment 

 completely covered. Palpi black and white. Head : clypeal region whitish ; 

 frons black; vertex white. Thorax white. Abdomen bright orange-yellow with 



