94 us. NATIONAL MUSEUM BULLETIN 2 55 



Prodoxus cinereiis Riley 



Figures 22, 76, 100, 126, 146; Map 14 



Prodoxus cinereus Riley, 1881, pp. 636, 639; 1891a, no. 5184; 1892a, pp. 148ff., 

 pi. 43, fig. 4; 1892b, p. 100; 1892c, p. 375; 1893a, pp. 48, 51, 52; 1893b, pp. 306, 

 309, fig. 38.— Coquillett, 1893, p. 311.— Dyar, 1902 [1903], no. 6572; 1903b, 

 p. 103.— Kearfott, 1903, no. 7110.— Holland, 1905, p. 441, fig. 261.— Barnes 

 and McDunnough, 1917, no. 8468.— McDunnough, 1939, no. 9831.— Busck, 

 1947, p. 184. 



Adult (fig. 76). — Wing expanse: male, 9-12 mm; female, 11-15 mm. 



Head: Vertex with mixture of white and light brown scales; frons 

 white; labial palpus covered with white scales and brown hairs. 



Thorax: Pale brown. Dorsal surface of primaries unicolorous, pale 

 to medium brown, slightly darker in color underneath; fringe brown. 

 Secondaries usually darker than forewings, unicolorous above and 

 below, fully scaled; scales broad, nearly the width of those in forewings. 



Abdomen: Medium brown above, pale brown to nearly white 

 underneath. 



Male genitalia (fig. 100). — Apex of tegumen simple; lateral 

 margin with a pair of blunt lobes. Outer margin of cucidlus evenly 

 curved, without marginal spines. 



Female genitalia (figs. 126, 146). — Apex of ovipositor with dorsal 

 ridge gradually terminating into ovipositor shaft, not arched; ridge 

 with 19-23 teeth, serrations similar to those of P. coloradensis. Signa 

 greatly reduced in size, sometimes barely discernible, usually ovoid in 

 outline. 



Type. — Lectotype (designated by present author), cf, Caliente, 

 Kern Co., Cahf., collected by H. K. Morrison, USNM 421, genitalia 

 on slide DRD 868; in the U.S. National Museum. 



Type locality. — Caliente, Kern Co., Calif, (lectotype). 



Recorded host. — "Yucca whippleiTorrej" (Riley, 1892a). Larva 

 bores in flower stalk of host. 



Distribution. — Presently known only from southern California 

 (map 14). 



Material examined. — 80 cf cf and 21 99. 



UNITED STATES: California.— Kern Co.: Caliente, cf, lectotype; 3 cf c?, 

 paralectotypes (USNM). Los Angeles Co.: 23 d' cf, 17 9 ? , May-June (USNM); 

 5 d'cf, 2 9 ?, May (LACM). Big Tujunga Wash, 42 d'd', 9, May 7-14 

 (LACM). SanGabrialMts., 2 cf cf, June9 (LACM). Riverside Co. : Mt. Santa 

 Rosa [near Temecula], cf. May 30 (LACM). Ventura Co.: Hidden Valley, 

 Sherwood Lake, 3 c? cf , 9 , May 32 (LACM). 



Prodoxus (wnescens Riley 



Figures 77, 101, 127, 147; Map 15 



Prodoxus aenescens Riley, 1881, pp. 636, 639. — Riley and Howard, 1890, p. 350. — 

 Riley 1891a, p. 97, no. 5183; 1892a, p. 149; 1892b, p. 100; 1892c, p. 375; 



