42 U.S. NATIONAL MUSEUM BULLETIN 255 



fringe usually white along hind margin, becoming dark towards apex 

 of wing; ventral surface of similar color. 



Abdomen : White beneath, brownish above. 



Male genitalia (fig. 109). — Apex of tegumen with two small, setig- 

 erous lobes. Valves strongly constricted just before apex; posterior 

 margin of cucuUus produced into a long, digitate process bearing 2-5 

 short spines. Saccus moderately developed. 



Female genitalia (figs. 132, 152). — Apex of ovipositor without ser- 

 rated dorsal ridge; extreme tip minutely serrulate, sharply angulate. 

 Oviduct relatively short, shorter than apophyses. Spermathecal en- 

 largement present at juncture of ductus bursa with oviduct. 



Types. — Lectotype (Pronuba maculata, designated by present 

 author), 9, Cahente, Kern Co., Cahf., H. K. Morrison, USNM 417; 

 in the U.S. National Museum. Lectotype (Pronuba maculata variety 

 apicella, designated by present author), 9, July, Los Angeles Co., 

 Calif., USNM 67708; in the U.S. National Museum. 



Type localities. — California: Caliente, Kern Co. (lectotype, P. 

 maculata); Los Angeles Co. (lectotype, P. maculata variety apicella). 



Recorded host. — "Yucca whipplei Torrey," Riley, 1892a. Larva 

 bores in the seeds of host plant. 



Parasite. — (?) "Braconidae, HeterospUus koebelei (Ashmead)," 

 Riley and Howard, 1890. 



Distribution (map 4). — Presently known only from California. 

 Several specimens of this moth were collected reputedly from Plumas 

 County in northern California; however, this record is questionable, 

 since no species of Yucca is native to that area. If the locality as given 

 is correct, then it may be possible that the specimens originated from 

 cultivated plants. 



Discussion. — In their list of parasitic Hymenoptera, deposited in 

 the collections of the National Museum, Riley and Howard reported 

 HeterospUus koebelei to be a parasite of an undescribed species of 

 Pronuba (= Tegeticula) from California. Riley later described this 

 moth as Pronuba maculata. Because other evidence has cast some 

 doubt as to the validity of this report and because no other species of 

 Tegeticula is known to be parasitized, the present waiter checked the 

 accession files of the National Museum for additional information 

 concerning the rearings in question. Notations had been entered by 

 "T. Percande" which indicated that no definite association between 

 parasite and host was ever established and that the wasps possibly 

 had emerged from some species of Prodoxus. Thus, the above record 

 by Riley and Howard should be regarded with considerable suspicion. 

 It is more likely that HeterospUus koebelei is restricted to moths of the 

 genus Prodoxus and possibly to those species which I have referred to 

 as the "marginatus" group (see p. 71). 



