1921] NATURAL SCIENCES OF PHILADELPHIA, 21 



Chalceopla itoniella Busck. 



Two :\Iedicine Lake, July 16; Canyon Creek, July 23; Swift- 

 current Valley, July 27 ; flying in sunshine. 



In Chalceopla itoniella veins 7 and 8 of the fore wing are separate, 

 as is also the case in the two following species. The genus Chal- 

 ceopla is most easily recognized by the spreading bristles below 

 and at apex of second segment of the labial palpi, the minute or 

 small maxillary palpi and the two kinds of scales, the greenish or 

 bluish broad scales and the elongate metalUc scales. 



Chalceopla cockerelli Busck. 



Two Medicine Lake, July 16. 



Chalceopla ovata n. sp. 



Second segment of labial palpi white, with black bristles, terminal 

 segment black; hairs of head whitish; antennae black. Thorax and 

 fore wings shining bronzy brown, wdth pale yellowish markings; a 

 small elongate spot in fold near base; a spot on middle of dorsum 

 reaching fold; an oblique curved patch at three-fifths of costa is 

 narrow on the costa, but expands into an oval in the middle of the 

 wing. Hind wings dark brown with a purple tinge, and with dull 

 golden metallic scales on the margin projecting into the cilia. Legs 

 dark brown with a bronzy luster. Expanse, 7.5 mm. 



Type ( 9 ), July 18, on the cliffs on Goat Mountain above Going- 

 to-the-Sun Chalets. 



There is no differentiation in shape between the metallic over- 

 scales and the ordinary scales in this species in the fore wing; on 

 the hind Aving, metallic scales are only found at the extreme margin. 



Greya subalba n. sp. 



Labial palpi whitish, third segment black beneath; maxillary 

 palpi short, folded portion reduced to a short segment, which is 

 usually not bent over in the dead insect; antennae gray; head w^hite. 

 Fore wings varying in coloTr from shining white to pale buff, with 

 base of costa fuscous. Hind wings gray, with whitish cilia. Legs 

 white, fuscous shading on the two anterior pair. Expanse, cf, 

 14-16.5 mm.; 9 , 11-14 mm. 



Type (d^), Two Medicine Lake, July 16; twenty-two paratypes 

 (d^ and 9), Glacier Park Station, July 14, Two Medicine Lake, 

 July 15-16, McDermott Lake, July 23, all in dry meadows. 



The whitish immaculate fore wings distinguish this species from 

 the others of the genus. The terminal segment of the maxillary 

 palpi is only about half the length of the corresponding part in 

 Greya solenohiella Wlsm. 



