92 



U.S. NATIONAL MUSEUM BULLETIN 255 



CALIFORNIA INSECT SURVEY 



Deportment of Entomology ond Parosltology 



UNIVERSITY OF CALIFORNIA 



DRAFT i955J/At€n^ 



Map 13. — Distribution of Prodoxus marginatus (see maps 4 and 5 for distribution of host). 



Prodoxus pulverulentus Riley 



Figures 74-75, 99, 125, 145; Map 14 



Prodoxus pulverulentus Riley, 1892a, p. 150; 1892b, p. 100; 1892c, p. 375; 1892e, 

 p. 315;— Coquillett, 1893, p. 311.— Dyar, 1902 [1903], no. 6570; 1903b, 

 p. 103.— Kearfott, 1903, no. 7108.— Barnes and McDunnough, 1917, no. 

 8466.— McDunnough, 1939, no. 9829.— Busck, 1947, p. 184. 



Adult (figs. 74-75). — Wing expanse: male, 8-10 mm; female, 

 8-11 mm. 



Head: White. Labial palpus entirely white. 



Thorax: White, Dorsal surface of primaries white with scattering 

 of fuscous scales, concentrated principally over apical half of fore- 

 wing; fringe mostly white with scattered mixture of fuscous, especially 

 at apex; ventral surface densely covered with fuscous scales. Second- 

 aries white with fuscous shading along costa to apex, sparsely 

 scaled, scales very narrow, usually less than one-third the width of 

 those in forewing; fringe entirely white except for dark apex. 



Abdomen: Pale fuscous above, mostly white below except for 

 posterior patch of fuscous scales. 



Male genitalia (fig. 99). — Apex of tegumen simple, not clef ted. 

 Outer margin of cucullus bluntly rounded, not spined. 



Female genitalia (figs. 125, 145). — Apex of ovipositor with dorsal 

 ridge gradually terminating into shaft; ridge minutely serrulate, with 

 approximately 45-55 teeth. Signum stellate, well developed, with 

 usually 8-12 rays. 



