THE CANADIAN ENTOMOLOGIST. 55 



wings and abdomen dull black. The head, thorax and fore wings are 

 strongly iridescent with dark bluish-green, the abdomen less so. Beneath 

 as above, but less iridescent. 



Yosemite Valley, Gala. One ^ . Differs somewhat in structure from 

 the typical Pyla. The labial palpi are nearly horizontal, second member 

 long, heavily scaled ; end member very small, scarcely visible ; maxillary 

 palpi small, not scale or pencil tufted. 



Pyla incorruscella, n. sp. — Expands 21 mm. Palpi and face deep 

 black; thorax deep black with a few dark gray scales; fore wings dull 

 black, intermixed with some dark fuscous scales ; two cross-lines of 

 stained white, the inner oblique, rounded, diffuse, the outer angulated in 

 at vein 6, rounded outwardly from there to vein 5, then slightly wavy to 

 inner margin. Beneath dark fuscous, two lighter fuscous spots along 

 costa, one before discal space and the other at end of second cross-line. 

 No iridescence on any part of the insect. 



Colorado. One ^ , from Mr. Bruce. Smaller than P. ceiieela, without 

 iridescence, maxillary palpi small, but scale tufted. 



Pyla ceneela, n. sp. — Expands 25 mm. Labial palpi grayish fuscous 

 below, blackish, with blue-green iridescence above ; face black, bluish 

 iridescent ; thorax black, with coppery-bronze iridescence. Wings 

 blackish in $ , the fore wings with scattered iridescent sales on middle of 

 wings, scarcely any showing along edges. 9 fore wings blackish, almost 

 completely greenish-yellow iridescent; hind wings black, with reddish- 

 brown tint in some lights. Beneath blackish, slightly iridescent in $ 

 along anterior margin of hind wings ; all parts completely iridescent in $ . 



Colorado. One $ , two $ ? , from Mr. Bruce. The labia] palpi 

 are ascending, long, end member long, maxillary palpi small, with two or 

 three long scales at end. Abdomen of $ with lateral scale tufts on last 

 segment, and a row of orange-yellow hair tufts below. $ with antennte 

 bent above base^ and a sligh tuft in sinus, almost as distinct as that of the 

 9 ; maxillary palpi also quite as prominent as in ^ . The sex is 

 beyond question, as the ovipositor is strongly protruded. 



Diorydria Brucei, n. sp. — Expands 24 to 28 mm. Palpi gray, 

 black at tips ; head above whitish ; thorax gray, more whitish on dorsal 

 parts ; abdomen alternating whitish and gray on each segment, very 

 slightly washed with ochre. Fore wings whitish, more or less overlaid 

 with blackish scales, giving a clear gray appearance ; cross-lines whitish, 

 very irregular, not sharply outlined. The basal with a long outward 



