252 PROCEEDINGS OF THE NATIONAL MUSEUM vol. lu 



area, and a slight indication of transverse lines. Outer third of fore- 

 wing brownish gray-white, irregularly crossed by narrow, slightly 

 oblique, interrupted blackish lines. Terminal line narrow, blackish. 

 Cilia concolorous with outer part of forewing. Length of forewing, 

 7-8 mm. Hind wings smoky white; cilia white. 



Male genitalia. — Tegumen moderate; gnathos smooth; socii band- 

 like, rather broad. Valvae elongate; brachiola slightly indicated; 

 sacculus somewhat concave at middle; external tuft rather broad. 

 Aedoeagus geniculate, with a bicuspidate carina on outer surface; 

 vesica with two rather long cornuti capitate at their bases. 



Female genitalia. — Sterigma with moderately long, parallel coni- 

 form lateral lobes rotundate at tips. Antrum subrectangular with 

 caudal angles curved laterocephalad. Ductus bursae moderately 

 long, dilated, and sclerotized at middle. Cervix bursae moderate; cor- 

 pus bursae rotundate with a large stellate scobinate signum. 



Types. — Holotype, male (genitalia on slide, prepared Nov. 5, 1934, 

 by J. F. Gates Clarke), Cle Elum, Kittitas County, Wash., Apr. 9, 

 1931 (J. F. Gates Clarke); allotype, female, Aweme, Manitoba, Apr. 

 18, 1905 (N. Criddle); one male (without abdomen) and one female 

 (genitalia on slide 1-Obr., Jan. 12, 1959), paratypes, Aweme, Manitoba, 

 Aug. 24, 1907, and Apr. 19, 1908 (N. Criddle). All the above 

 types in USNM (no. 65587). 



Remarks. — In its appearance this species resembles no other known 

 Acleris species, and might perhaps remind one rather of an Apotomis 

 or Endothenia species. The form of the socii is somewhat similar to 

 that in the Acleris hastiana group, but the sculpture of the outer 

 surface of the aedoeagus is perhaps unique in the entire genus Acleris. 

 The female genitalia of the new species are rather close to those of 

 cervinana and suhnivana, and they differ from them in the shape of 

 the antrum. 



This new species is named for Dr. J. F. Gates Clarke, of the U.S. 

 National Museum, who directed the attention of the present author 

 to this and some other Acleris species in the collection of the above 

 museum. 



Acleris capizziana, new species 



Figure 6, a ; Plate 1 (figs. 2, 3) 



Male. — ^Antennae gray with blackish obliterate annulation more 

 distinct apicad. Head gray with scales dark patched at middle and 

 white edged apicad; some pinkish-brown scales at head sides. Labial 

 palpi above concolorous with head, below and at inside cream white. 

 Patagia and tegulae gray with scales whitish edged distad. Thorax 

 gray, distinctly darker than head. Fore wings gray with pinkish- 

 brown obliterate irregular markings formed by an area at base of 



