35 



Pleroma arizonata, sp. nov. 



Palpi gray, somewhat darker at the sides. Front gray, mixed with long 

 black hairs, with a patch of white hair-like scales on each side near the eyes. 

 Vertex darker. Antennal bases white. Collar with a black stripe at base, a pale 

 stripe above, a grayed area, another pale stripe, followed by a grayed area, 

 and lastly with faintly white tips. Patagia gray. Dorsum of thorax black. 

 Abdomen gray, with black dorsal tuftings. Ground color of primaries gray, 

 nearly the same shade as in obliquata. Basal line only distinguishable as a few 

 blackish scales on costa. T. a. line black, nearly as in cinerea, oblique from 

 costa to radius, shot backward about one millimeter on radius, thence obliquely 

 forward again to near the intersection of vein 2 (Cu^) with the stem (base of 

 Cu), oblique inwardly to submedian fold, where it is intersected by a basal 

 dash which originates at the base of the wing. An oblique black median line 

 present on costa, thru radius ; appearing as an oblique dash. T. p. line indistinct 

 from costa to near vein 4 (Mg), thence well marked to near the submedian 

 fold where it is lost. It originates about three-fifths of the wing length from 

 the base, is strongly outcurved around the reniform area, dentate inwardly on 

 vein 2 (Cu^), thence forming a small semicircle to slightly below the submedian 

 fold, intersected in the fold by a black streak. S. t. line pale, indistinct. A 

 terminal line slightly paler than the ground. 



The area above the basal dash is pale and contrasting. Orbicular repre- 

 sented as a pale, contrasting, diffused spot. Reniform obscure and diffused. 

 Median area darker below cubitus than above. S. t. area with dark filling, with 

 dash in the submedian fold mentioned above, below which is a clear white bar 

 connecting the s. t. and t. p. lines, and on the lower margin of the white bar 

 is a conspicuous short black bar which starts at the s. t. line but reaches only 

 about two-thirds across the s. t. space. Terminal area paler. Fringe dark gray, 

 interlined with a pale line. 



Secondaries: smoky- fuscous, with only the trace of a common line and 

 spot. Fringe pale fuscous, interline darker. 



Beneath: Primaries smoky, paler basally in anal region. Secondaries 

 whitish, heavily dusted with blackish scales, the ordinary line present, distinct; 

 as is also a small and nearly round dot on the discocellular vein. 



Size: 39 mm. 



Apparently an undoubted Pleroma, but readily distinguished from 

 all others by its larger size, vi^hite bar in the submedian fold and 

 smoky secondaries, combined with nearly the general markings of 

 cinerea. It is placed between obliquata race smithi and cinerea. 



Type locality: Palmerlee, Ariz. 



Number and sexes of types: Holotype, 5, unique. 



