434 



to cleft and with a small brown dash above base of cleft. These costal marks 

 are not at all conspicuous. First lobe with brown dots well before apex on both 

 margins. Second sometimes with a few brown scales on veins. Fringes tawny 

 gray. Secondaries and their fringes brownish gray, much darker in appearance 

 than primaries. Expanse 24-28 mm. 



Distribution: Type locality Goose Lake, Siskiyou Co., Cal., July. 

 We have a long scries from Loma Linda, San Bernardino Co., Cal., 

 and a single specimen from Golden, Colo., all July, and the species 

 is in the National Museum from Mont, and N. M. 



There are six types in the Cambridge Museum, one S and hve 

 without abdomens. 



The long palpi, large size and distinctly yellow primaries of this 

 species render it very distinct, but the fact that the costal marks are 

 inconspicuous may be rather misleading in placing it in the proper 

 category of the key, so we have included it in both of the possible 

 groups. We have not, however, actually observed specimens which 

 lack these marks. 



The .species has been reared by Dyar, who gives the following 

 account of the larva: 



"Larva. — Thick, flattened, tapering at the ends ; feet normal, slender. Head 

 rounded, bilobed, the apex under joint 2, mouth projecting; width about 12 

 mm. ; black, the sutures broadly brown. Body without secondary hairs, the 

 warts low and diffuse; i with three or four, ii with one hair, these warts some- 

 what approximate ; iii with several hairs ; a group of six hairs on the subvcntral 

 fold without wart and a hair posteriorly in line, absent on some segments ; sev- 

 eral hairs for tubercle vi. Olivaceous green, a broken, broad, sordid white 

 subdorsal line along warts i and ii with four black dots on each segment 

 between in a square, becoming black blotches on the posterior segments. Wart 

 iii pale; spiracles black; skin finely dark granular; cervical shield blackish, hairy; 

 thoracic feet black, the abdominal ones pale. Hair white, minutely glandular 

 tipped; segments obscurely 2-annulate ; a black impressed lateral dot in the 

 middle of the segment. 



"The larvae were found webbing up the young heads of a wild sunflower, 

 Helianthtis pumilus, and feeding within the spun mass. They occurred on the 

 foot hills near Boulder Creek Canyon (Colo.). Spun among dead leaves; 

 emerged June 10." 



47. OiDAEMATOPHORus SERENus Meyrick. PI. XLIV, fig. IL PI. 



LH, fig. 13. 

 Pterophcrus screnus Meyrick, Exot. Microlep. I, 113, 1913. 



Id., Wagner's Lep. Cat. pars. 17, 26, 1913. 



Barnes & McDunnough, Check List 151, 1917. 



