404 THE CANADIAN ENTOMOLOGIST 



NEW NORTH AMERICAN PHYCITIN^ 



BY WM. BARNES, S.B., M.D., AND J. MCDUNNOUGH, PH.D., 



DECATUR, ILL. 



Rhodophaea bicolorella, sp. nov. 



Palpi collar and patagia blue-black, thorax and abdomen 

 ochreous; primaries with the costo-basal half blue-black, streaked 

 with pale gray; median area of wing and inner margin broadly 

 to t. p. line ochreous, shading into ruddy-brown before t. p. line; 

 terminal area blue-black, sprinkled with pale gray; t. p. line in- 

 dicated in costal portion as the outer border of dark area, obsolete 

 in lower half, reniform faintly visible as a large oval filled with 

 paler shading; t. p. line distinct, black, bordered outwardly by 

 white line, rigid to vein 5, then slightW bulging and a little irregular 

 to vein 2, wi^h slight inward angle in fold, preceded by slight dark 

 shading in costal and central areas; terminal dark line; fringes 

 smoky. Secondaries hyaline with slight smoky outer border. 

 Expanse 22 mm. 



Habitat. — Christmas, Gila Co., Ariz.; Redington, Ariz. 4 cf 's. 

 Types, Coll. Barnes. 



The type of maculation is essentially that of hystricnlella, 

 but the ochreous and ruddy central and inner areas render tlie 

 species easily recognizable. 



Genus Acroncosa, nov. gen. (Type A. albifiavella, sp. nov.) 



Fore tibia with long inner and short outer claw; cf antennae 

 ciliate, without scale-tuft but with row of minute scale-ridges on 

 upper side in basal portion; labial palpi somewhat ascending, 

 moderate, smoothly scaled; maxillary palpi scaly, appressed, 

 slightly fan-shaped; primaries 11-veined, 2 and 3 well separated 

 and sub-parallel, 4 and 5 from a point; 8 and 9 stalked, 10 separate; 

 secondaries 8-veined, discal vein strongly outcurved, the lower 

 angle of cell being produced to a point, vein 2 well before this angle, 

 3 from angle, 4 and 5 long stalked, 4 in line with discocellular, 8 

 distinct, shortly stalked from 7. 



This genus is, as far as we know, the first instance of a Phycid 

 with clawed fore-tibiae, and should be readily recognizable by this 

 feature. 



December, 1917 



