102 



UNITED STATES NATIONAL MUSEUM BULLETIN 207 



sclerotized for the entire length of the harpe, its apex 

 blunt, slightly produced and usually forked; sacciilus 

 short and narrow, its inner surface covered with dense, 

 spinelike hairs (probably the "strong spines" mentioned 

 by Hulst in his original description of the genus) . Vin- 

 culum a broad plate with weak lateral lobes. Aedeagus 

 long, moderately stout, smooth, slightly curved towards 

 base; penis armed with two stout cornuti. Vinciilum 

 stout, tapering, considerably longer than greatest width. 



Female genitalia with bursa stout, scobinate-granu- 

 late and usually with sclerotized patches or folds; ductus 

 bin^ae long (much longer than bursa), flat (ribbonlike), 

 sclerotized and granulate for its entire length, broadest 

 towards genital opening; ductus seminalis from lobe of 

 bursa near jimction of bursa an'd ductus bursae. Eighth- 

 segment collar with middle of dorsal anterior margin 

 slightly produced. 



Hulst erected the genus Pima for one species {foster- 

 ella) which he later (1890) synonymized with alhijplagkb- 

 teUa. Kagonot (1889) referred fosterella and the other 

 congeneric American species to Epischnia Hiibner. The 

 latter as defined by Eagonot (1893) is a composite of 

 several disparate elements and none of the species occur- 

 ring in the New World agrees with the type species of 

 Epischnia (prodromella, Hiibner) . The latter has quite 

 different genitalia (figs. 426, 884). Its male antenna 

 has a deep sinus but the latter is without the row of 

 toothlike spines characteristic of Pima; and the third 

 segment of the labial palpus is much shorter (less than 

 half the length of the second segment). There is also 

 a heavy scale-and-hair tuft on the underside of the pro- 

 thorax. This may be only a specific character (as simi- 

 lar tuf tings are in some other phycitid genera) ; but the 

 structm-e is entirely lacking on the New World species 

 and on the European boisduvalieUa Gu6n6e, which is a 

 tjrpical Pima on all characters. The venation of Pima 

 is like that of Epischinia (fig. 26). 



The species here referred to PiwM (except graniteUa 

 and parkerella) have a strikingly similar habitus ; but are 

 individually variable in size and color, especially among 

 examples of western species, several of which exhibit 

 both pale and dark forms. The extent of the white 

 costal streak on forewing is also individually variable 

 and reliance on this and other color features has resulted 

 in considerable confusion in the application of names. 

 The most reliable specific characters are in the genitalia, 

 especially those of the females. The chief male differ- 

 ences are in the shape and size of the cornuti, the shape 

 of the aneUus, and the configuration and width of the 

 apex of the sclerotized costa of harpe. These differ- 

 ences are trifling and also subject to some variation, es- 

 pecially the notching at the apex of costa of harpe. 



The larvae feed in the flowers and seed pods of vari- 

 ous Legumiinosae. From scattered reared examples in 

 the National Collection the species do not seem to be 

 confined to specific plants; but there have been no ex- 

 tensive and systematic rearings, and these will be needed 

 to clear up host relationships and to differentiate any 

 possible food-plant races. 



Genus Pima, Species 209-216: P. boisduvalieUa 

 to P. fulvirugella 



[Forewing with strongly contrasted wMte costal stripe.] 



209. Pima boisduvalieUa (Guenee), new combination 

 Figures 299, 776 



Epischnia boisduvalieUa Guinea, Europaeorum Microlepidopter- 

 orum index methodicus . . . , p. 81, 1845. — Ragonot, Ent. 

 Monthly Mag., vol. 22, p. 23, 1885; Monograph, pt. 1, p. 

 518, 1893 (part). — Lafaury, Ann. Soc. Ent. France, ser. 6, 

 vol. 5, p. 398, 1885. — Spuler, Die Schmetterlinge Europas, 

 vol. 2, p. 209, 1910. — Meyrick, Revised handbook of British 

 Lepidoptera, p. 382, 1928. — McDunnough, Canadian Ent., 

 vol. 67, p. 176, 1935 (part) ; Check list. No. 6251, 1939. 



Forewing pale fawn on lower half shading into muddy 

 fawn along the lower border of the white costal stripe 

 where it forms a more or less distinct dark band through 

 the center of the wing from base to termen; no indica- 

 tion of transverse Hnes; extreme costal edge blackish 

 gray weakly peppered with white, this dark shade en- 

 croaching on the white costal stripe beyond middle; 

 white costal stripe extending to apex, its lower margin 

 edged by a fine gray-black line; discal dots at end of cell 

 minute, blackish, the upper one lying within the black- 

 ish edge of the white stripe and frequently indistinguish- 

 able, the lower one distinct but not conspicuous; some 

 faint scattered black dotting and dusting on and below 

 vein lb beyond base. Hind wing pale ocherous brown, 

 on some specimens with a faint ocherous tint. Alar 

 expanse, 19-25 mm. 



Male genitaUa with apex of costa of harpe slightly 

 expended, concave or weakly notched, the upper angle 

 of the notch rounded, the apical margin oblique. 

 Cornuti both broadened for more than half their 

 lengths; the broad part of the shorter thorn longitudi- 

 nally grooved (fluted) ; the longer thorn but shghtly less 

 than half the length of the aedeagus. 



Female genitaha with bursa narrowly heart shaped; a 

 small rounded or oval sclerotized plate in bursa near its 

 middle; bursa longitudinally wrinkled, the wrinklings 

 weakly sclerotized; also a couple of broader, more 

 tortuous, sclerotized folds, the one curving about junc- 

 tion of bursa aind ductus bUrsae serrate along its edge; 

 bm-sal granulations weak, scobinations in lobed area 

 adjacent to junction of ductus btu-sae fine but rather 

 dense; lower margin of ductus biu-sae at genital opening 

 straight, not produced. 



Type locality: Switzerland (location of type un- 

 known). 



Food plants: Ononis, Anihyllis, Lotus, Astragalus 

 (European records). 



Distribution: Eubope. Canada: Manitoba, Aweme 

 (May), Beulah (June, Aug.), Winnipeg; Saskatchewan, 

 Regina (June, Aug.) ; Alberta, Lethbridge (Jime) . 



This European species is definitely estabUshed in 

 North America, but most of the American references to 

 boisduvalieUa apply to other native species. The only 

 American examples of the true boisduvalieUa I have 

 seen are some ten specimens from the Canadian localities 



