3 94 



Plcroflwrus baroni Fernald, Pter. N. A. 54, 1898. 

 Id., Bull. 52 U. S. N. M. 446, 1902. 

 Meyrick, Gen. Ins. C, 16, 1910. 

 Id., Wagner's Lep. Cat. pars 17, 23, 1913. 

 Barnes & McDunnough, Check List 151, 1917. 



Grayish to slightly tawny, head brownish except between antennae. Other- 

 wise as in preceding species, with abdominal spots less conspicuous and upper 

 surface of abdomen very vaguely streaked with black scales in some speci- 

 mens. Tufts on tibiae with a generous mixture of white scales. Front and 

 middle tarsi sometimes faintly annulate. 



Primaries buff to ochreous along inner margin, blending into the whitish 

 mauve to purplish brown costal region. There are a very few black scales and 

 the base of the costa is darkened. Cleft preceded by a very faint trace of a 

 dark spot. Veins in first lobe pale in the darker specimens. Inner margin of 

 first lobe with a fine black point before apex. Apex of both lobes with one and 

 outer margin of second witli two very faint black points in some specimens. 

 Fringes grayish ochreous with some white hairs but without white pencils in 

 the specimens we have examined except a trace at dot before apex of first 

 lobe. Secondaries gray brown with concolorous fringes. Expanse about 32 

 mm. 



Distribution : Cal. We have it from Alameda Co. and Warner's, 

 June and July. 



The immaculate primaries with their pronounced purplish or 

 mauve tint render this a very striking species. We have seen only 

 four specimens, all females, including the two types, but have no 

 doubt that it is a good species. In general form it is identical, so far 

 as we have observed, with rileyi. The two types are in the Fernald 

 collection. 



We have no information regarding the early stages. 



11. OlDAEMATOPHORUS CASTOR n. sp. PI. XLVII, fig. 10. PI. I.I. 



fig. 8. 



Whitish, faintly tinged with light brown. Head darker except a broad 

 patch between antennae. Antennae banded with brownish black above. Palpi 

 moderate, oblique, blackish touched with wliite above. Abdomen with a broad 

 brown dorsal stripe including black bars on hind margins of several segments 

 in holotype and allotype. Legs white. Fore tibiae with one and middle with 

 two moderately heavy tufts of blackish scales, including a few white. Mid tarsi 

 touched with brown on one side at tips of joints. 



Primaries whitish, delicately shaded with pale brown along the veins in 

 the lobes and in a few vague areas on disk and inner margin. Costa with a 

 brown dash above base of cleft, sometimes followed by a fine brown dot. This 

 dasli is preceded by a broad shade sprinkled with black scales, heaviest toward 

 base. Cleft preceded at a short distance by the usual oblique black patch which 



