J. R. MALLOCH 275 



Phaonia pallida (Stein) 



Diahjta puUida Stein, Arch, fiir Naturges., abt. A, heft 9, p. 22, 1920. 



This species, though having the eyes of the male widely sepa- 

 rated and some of the characters and general habitus of a Diahjta, 

 is really an aberrant Phaonia (fig. 15). Stein recognises the 

 similarity of the species and flava in his notes on the former. 

 The genus Diahjta is not easily separable from Phaonia, but the 

 legs in the former are more strongly bristled, and in both the 

 American species known to me there are bristles on the antero- 

 dorsal surfaces of the fore and mid tibiae, and the apical tibial 

 bristles are very long and numerous. 



Stein described paUida from a male taken at Julietta, Idaho. 

 The similarity between the species would have been more striking 

 to Stein, had he considered the male of flava, with wide frons, 

 as normal instead of aberrant. Evidently the frons in the male 

 of flava is a])0ut as wide as in paUida, and l)ut little darker than 

 in the latter species, judging from Stein's remarks under ^ai'o. 



I have specimens of paUida from the following localities: two 

 males and one female, Almota, one female. Union Flat, one 

 female, Pullman, one female. North Yakima, all from Washing- 

 ton; one female. Hood River, Oregon; three females, Mono Lake, 

 California. All the aljove were sent to me by Dr. Aldrich. 



Phaonia flavibasis Malloc-h 



Phaoiiid flavil)(iKi.)i Malloch, Proc. Biol. Soc. Wash., xxxii, p. 208, 1919. 



Since describing this species I have seen another male, from 

 Hanover, New Hampshire. 



Structurally the species very closely resem])les hysia Walker, 

 but the prealar biistle is much shorter and the basal half of the 

 abdomen is conspicuously subpellucid yellow. 



There are several species belonging to this same group, all of 

 which are very closely related, hysia Walker, apicaia Johannsen, 

 apta Stein and wintiemanae ]\Ialloch. 



Phaonia curvinervis new ispetae.s 



Female. — Shining l^laek, with di.stinet gray pruinescence. Antennae and 

 palpi rufous yellow, third segment of former brown except at base. Thorax 

 quadrivittate, margins of humeri, posterolateral margins of mesonotum, scu- 



TRANS. AM. ENT. SOC, XLVIII. 



