393 



Ground color brownish white to pale brown, head slightly darker except 

 between antennae. Antennae with brown dots above. Palpi moderate, slender, 

 oblique. Abdomen with black dots above in hind margins of some segments; 

 scales in posterior half roughened on these margins. Legs similar, evenly 

 colored with a touch of black beneath hind tibiae at bases of spurs and brown 

 scale tufts on fore and mid tibiae. 



Primaries same shade as body with a brown costal dash over base of cleft 

 and an oblique dash before cleft, continued by a faint shade toward costal spot. 

 First lobe with a black point on inner margin before apex. A few scattered 

 black scales are present, forming a slight streak before discal dot and rather 

 dense along basal half of costa, but elsewhere very scarce. Fringes slightly 

 darker and more grayish than wing, with scarcely a trace of pale hairs, even 

 at black point on first lobe. Secondaries gray-brown with concolorous fringes. 

 Expanse about 32 mm. 



Distribution : Cal., Sept. Described from Placer Co. 



The form of this species is much like that of ciiieracciis and baroni, 

 and for a time we were inclined to doubt its distinctness from the 

 former. We now believe, however, that its large size and even color 

 are a sufficient basis for the retention of the species. Unfortunately 

 we have seen only one specimen in addition to the type series, and 

 the genitalia afford no definite assistance. Our material in these three 

 related species is too meager to allow us to work out the possible 

 variations of genitalia, and such as appear in our few slides must 

 therefore be discounted, perhaps unduly. 



Fernald says in his original description that the species was 

 "described from seven examples taken in September, in Placer County, 

 California, and presented to the National Museum by the late Dr. C. V. 

 Riley". We found five of these specimens in the National Museum 

 material, labelled by Fernald but not as types. In the Fernald collec- 

 tion there are two specimens labelled type. We are designating one 

 lectotype $ . The other may be regarded as the allotype, and we see 

 no reason at all why the remaining five should not be paratypes. We 

 have accordingly written labels for them under the U. S. N. M. type 

 No. 23496. One of these five, a 9 , is now in the Barnes collection 

 through the kindness of the Museum authorities. 



None of the specimens examined were reared. 



10. OlDAEMATOI'HORUS BARONI Fish. PI. XLV, fig. 12. 

 Oedematophorus baroni Fish, Can. Ent. XIII, 7i, 1881. 

 Alucita baroni Fernald, Smith's List Lep. N. A. 87, 1891. 



