106 



UNITED STATES NATIONAL MUSEUM BULLETIN 207 



Genus Pima, Species 217 and 218: P. granitella 

 and P. parkerella 



pPorewing with white costal streak obscure or absent.] 



217. Pima granitella (Ragonot), new combination 

 Figures 307, 781 



Epischnia granitella Ragonot, N. Amer. Phyoitidae, p. 9, 1887; 



Monograph, pt. 1, p. 523, 1893. — Hulst, Phycitidae of N. 



Amer., p. 162, 1890. — McDunnough, Check list. No. 6258, 



1939. 

 Megasis piperella Dyar, Proc. Ent. Soc. Washington, vol. 6, p. 



110, 1904. 



Forewing gray finely powdered with white, the white 

 dusting concentrated between the veins; the latter finely 

 lined with blackish brown giving the wing (to the naked 

 eye) a longitudinally dark-lined, over-all pale bluish 

 gray appearance; on some specimens a trace of the usual 

 costal white strip as a narrow white line along top of 

 cell for a short distance from base; the lower blackish 

 discal spot usually distinct but occasionally obliter- 

 ated; on a few specimens the subterminal line slightly 

 indicated by interruptions in the blackish streaks on the 

 veins, but, otherwise, transverse lines absent. Hind 

 wing pale brown, unicolorous, except for a narrow, very 

 slightly darker line along termen. Alar expanse, 22- 

 23 mm. 



Male genitalia with sclerotized costa of harpe broad- 

 ened, sUghtly notched and produced at apex. Cornuti 

 lying one before the other, of nearly equal length, not 

 (or but very slightly) broadened and not flattened at 

 base; the longer one slightly less than one-third the 

 length of aedeagus. Female genitalia similar to those 

 of albocostalialis except sclerotized patches in bursa, 

 narrower, more elongate. 



Type locality: California (granitella, in Paris Mus.) ; 

 Pullman, Wash, (piperella, in USNM). 



Food plant: Orotolaria. 



Distribution: Colorado, Glenwood Springs (Apr., 

 May); Utah, Eureka (May, June), Kichfield (May), 

 Stockton (May); New Mexico, Jemez Springs (Apr., 

 May); Arizona, Dewey (Apr.); Nevada, Baker (May); 

 California, Argus Mts. (May), Crows Landing (May), 

 Los Angeles County (May); Washington, Pullman, 

 Walla WaUa (May). 



A distinct species, easily recognized by its wing pat- 

 tern. 



218. Pima parkerella (Schaue), new combination 

 Figures 306, 782 



Epischnia parkerella Schaus, Proc. Ent. Soc. Washington, vol. 26, 

 p. 196, 1924.— McDunnough, Check list, No. 6250, 1939. 



Forewing olive buff, costal and inner margins whitish 

 more or less overlaid with a fine peppering of blackish 

 scales; on some specimens a scattering of similar dark 

 scales in the central area and near outer margin along 

 some of the veins; no contrasted white costal strip; 

 transverse lines well marked on most specimens, white, 

 rather broad (absent on one example before me); the 

 antimedial line outwardly obHque from costa to inner 

 margin, nearly straight, at most with a slight bend at 



vein lb; subterminal line inwardly oblique from costa 

 to inner margin, with a decided notch at lower fold, in- 

 wardly margined by a faint dark shade; discal spots usu- 

 ally obsolete, when distinguishable very faint. Hind 

 wing very pale fuscous with a narrow dark Une along 

 termen; on the paler examples the hind wing has a slight 

 ocherous-gray tint. Alar expanse, 30-35 mm. 



Male genitalia somewhat stouter than those of pre- 

 ceding species. Sclerotized costa of harpe not appre- 

 ciably broadened at apex nor projecting beyond apex 

 of cucullus; very sHghtly if any notched at apex. Cor- 

 nuti lying close to each other, the apex of one projecting 

 slightly beyond that of the other; about one-third as 

 long as aedeagus. 



Female genitalia with bursa minutely scobinate, at 

 left posterior angle developed as a protruding lobe with 

 thickened membrane; ductus bursae developed into a 

 projecting shield at genital opening. 



Type locality: Bozeman, Mont, (type in USNM). 



Food plant: "Locoweed" (Astragalus). 



Represented in the National Collection by nine ex- 

 amples from the type locaUty (July). The species is 

 easUy recognized by its forewing markings. It is the 

 only Pima with anything approaching distinct trans- 

 verse lines. 



56. Interjectio, new genus 



Type of genus: Ambesa columbiella McDunnough. 



Characters as in Pima except: Labial palpus extend- 

 ing little more than the length of the head beyond it, 

 third segment less than half as long as second; apical 

 process of gnathos a broad, flanged plate terminating in 

 a short slender hook; harpe short, hardly extending be- 

 yond apical margin of uncus; vinculum little longer than 

 greatest width; genitalia generally broader andmore 

 chunky than those of Pima; ductus bursae of female 

 short, Httle, if any, longer than bursa. 



This genus is intermediate between Pima and Ambesa. 

 From the latter it differs chiefly in having at least two 

 cornuti on the penis and the granulations of the ductus 

 bursae uninterrupted for its entire length. 



219. Interjectio denticulella (Ragonot), new combination 



Figure 308 



Prisiophora denticulella Ragonot, N. Amer. Physicidae, p. 6, 1887. 

 Ambesa lallatalis Authors not Hulst (in part) Ragonot, Ent. 



Amer., vol. 5, p. 115, 1889; Monograph, pt. 1, p. 241, 1893. 

 Ambesa denticulella (Ragonot) McDunnough, Canadian Ent., 



vol. 67, p. 174, 1935; Check list, No. 6158, 1939. 



Forewing white dusted and marked with black, 

 making the ground color (of fresh specimens) white 

 with a very faint bluish tint; the dark markings strongly 

 contrasted, consisting of streaks and spots chiefly indi- 

 cating broken margins of the antemedial and postmedial 

 lines; the antemedial line itself obscure except between 

 lower fold and inner margin when it is an inwardly 

 curved white line preceded by a black spot and followed 

 by a thin black marginal line; above, indicated only by 

 its outwardly oblique, broken outer margin, consisting 

 of a short black line from costa and black streaklets on 



