222 Journal New York Entomological Society. [Vol. xxviii. 



Genus Argyria Hiibner. 



Our species of this genus form two clean-cut groups. The typical 

 section has palpi projecting about as far as the length of the head, 

 rounded and not prominent front, and Sc free and nearly straight, 

 as usually described. It includes A. nivalis, rileyella, argentana, lac- 

 teella and the majority of the tropical species. The other group, 

 with A. oiiratella (including its southern form piilcJiella) , A. critica, 

 described below, and doubtless Dyar's A. joncsclla from the neotrop- 

 ical region, has much longer palpi, as long as the thorax, more or less 

 conical front and Sc anastomosing with R. The tongue is also 

 weaker and the species approach Diafrcca, differing mainly in the 

 rather shorter, stouter palpi, presence of ocelli, and silvery coloring. 



A. rileyella Dyar. 



There is a specimen in our collection, taken by Dr. J. C. Bradley 

 at Spring Creek (Decatur Co.) Ga., May 18-21, 1916; which defi- 

 nitely fixes this species as North American. Dr. Barnes has also 

 a series from Southern Pines, N. C. It was described without local- 

 ity, and does not appear in our lists. 



A. argentana Martyn. Richmond, Tex., June 22, and Wharton, Tex., June 24, 



1917- 

 A. lacteella F. .Ma., La. and Miss., June, 1917. 

 A. auratella pulchella Walk. 



This name may be applied to the small southern form of A. aura- 

 tella j which does not appear to differ in markings. Devers. Tex., 

 June 21, 1917. 



Argyria critica, new species. 



This form is very close to auratella and may not be distinct, but as it 

 differs visibly in frontal structure, and will run differently in Dyar's key (Ins. 

 Ins. Men., i, iii), it may receive a name. 



Front rounded out, about a quarter as far as width of eye, and much 

 less prominent than in A. auratella. Male antennae not quite so broad as in 

 male auratella. Sc and R of fore wing anastomosing. Silver white, marked 

 with golden yellow. Head yellow, face white with yellow borders ; vertex 

 broadly white. Palpi yellow, white on upper side and at tips. Collar yellow 

 with a white middorsal band. Thorax white with a triangular golden yellow 

 patch on each side of disc, partly covered by the white tegulae. Under side 

 white, front of fore coxa, remainder of fore legs and outer face of middle legs 

 yellow. Abdomen white. 



