126 



■UNITED STATES NATIONAL MUSEUM BULLETIH 207 



Forewing whitish ocherous with basal half of costa 

 faintly washed with reddish ocherous, also some traces 

 of this shading on the pale ocherous thorax and along 

 inner margin of forewing from base to antemedial line, 

 strongest on costa just above the dark borders of the 

 antemedial line; some blackish dusting along costa near 

 apex and occasionally on a few of the veins; antemedial 

 line obscm"e, broken, frequently obscured entirely by 

 its black borders; the latter forming a broad, strongly 

 contrasted black blotch which extends from inner 

 margin to top of cell (not reaching costa); discal dots 

 much reduced or absent, if present more or less con- 

 fluent. Hind wing pale whitish ocherous; the veins 

 very slightly darkened. Alar expanse, 22-25 mm. 



Male genitalia figured from Colorado specimen identi- 

 fied by Hulst as delassalis (one of his spurious "types"). 

 There are no structural differences to distinguish the 

 male genitalia of the two species. 



Female genitalia with a single, rather lairge, granulate 

 patch in bursa, on left side and extending onto ventral 

 surface near posterior end of bursa; the bursa copula- 

 trix itself as broad as long, approximately round, the 

 membrane at anterior end thickened (cartilaginous). 



Type locality: Arizona (type in Paris Mus.). 



Food plant: Unknown (prohsiblj Amorpha sp.). 



Distribution: United States: Arizona; Colorado, 

 Denver, Glen wood Springs (July), also two males and 

 a female with only the state locality, identified by Hulst 

 as "delassalis" ; Kansas, Thomas County; Iowa, Ames. 

 Canada: Manitoba, Cartwright (June, July), Winnipeg. 



The female genitaha and ground color of thorax and 

 forewing easily separate this species from delassalis, 

 with which it has been confused due to Hulst's later 

 (1890) misidentification of his own species. 



255. Nephopteryx dammersi, new species 

 Figures 338, 822 



Ground color pale ashy gray strongly shaded with 

 pale rust red on thorax, at extreme base, on basal half 

 of costal edge and on basal third of inner margin of 

 forewing; more or less of this red shading on the black 

 inner border of the antemedial line and forming its 

 outer border near costa; an obscure, ill-defined, rusty 

 blotch on middle of lower fold; antemedial line distin- 

 guishable on most specimens, narrow, whitish, slightly 

 oblique and indented between cell and inner margin 

 (the antemedial line, where it can be distinguished for 

 any appreciable distance, has a similar configuration 

 and slant on most of our American Nephopteryx), 

 bordered outwardly on lower half by a narrow, inter- 

 rupted black line and inwardly by a broad black band, 

 the latter extending only from inner margin to middle 

 of cell and (as noted above) more or less shaded with 

 rust red; sub terminal line obsolete or nearly so; discal 

 dots usually distinct, especially the lower one, sepa- 

 rated, blackish; terminal dots minute, very faint, not 



confluent. Hind wing duU white with a faint ocherous 

 tint on male; pale smoky fuscous on female; the veins 

 faintly darkened and a faint, narrow, dark shade along 

 termen. Alar expanse, 25-26 mm. 



Male genitalia similar to those oifernaldi. There is 

 some difference in the armature of the penis between the 

 two species; the cornuti are somewhat shorter and 

 stouter and there is a darker pigmentation of some of 

 the scobinations on penis in dammersi (fig. 338); but 

 there is so much individual variation of these structures 

 within any given species of Nephopteryx that they can 

 not be safely used to separate species. Female genitalia 

 with two small and one large granulate patch in bursa. 



Type locality: Cajon Valley, San Bernardino 

 Valley, Calif, (type in USNM, 61346). 



Food plant: Amorpha calijornica. 



Described from male type and three male and six 

 female paratypes from the type locality (reared by 

 Commander J. Dammers Apr. 15, 1933, and July 20, 

 30, 1932), and one female from the Huachuca Mts., 

 Ariz. ("July 8-15"). In addition I have before me a 

 male from Douglas County, Ariz. (July 20, 1940, 

 collected by Fritz Forbes), which appears to be con- 

 specific. It is a trifle smaller (24 mm.) than the speci- 

 mens of the type series. Without a matching female 

 from the same locahty it appears unwise to include it 

 among the paratypes. 



The species is named in honor of Commander 

 Dammers, who has given many fine reared and collected 

 specimens to our National Collection. It is close to 

 jemaldi, but on female genitahc characters seems to be 

 a distinct species and not a color form or local race. 



256. Nephopteryx dammersi floridensis, new race 



Smaller and considerably darker than typical dam- 

 mersi; the ground color dark gray finely peppered with 

 white especially in median and subbasal areas making 

 these areas a trifle paler than remainder of wing; the 

 rust red markings of typical dammersi replaced by 

 lavender-red infloridensis and this color more extended, 

 forming a faint suffusion over much of the median and 

 outer areas in addition to the stronger markings on 

 costa, inner margin and extreme base; subterminal line 

 distinct and with narrow dark borders. Hind wing 

 smoky fuscous; the veins darkened; a narrow blackish 

 line along termen. Alar expanse, 21-22 mm. 



Genitalia: Male and female as in typical dammersi. 



Type locality: Williamsburg, Fla. (t3T)e in USNM, 

 61347). 



Food plant: Amorpha herbacea. 



Described from male type from the type locahty, 

 reared under S. S. No. 16970A, June 25, 1944; and one 

 female paratype from Tampa, Fla., reared imder S. S. 

 No. 16859, June 29, 1944. Larva collected and both 

 specimens reared by members of the Special Survey of 

 the Division of Foreign Plant Quarantine of the U. S. 

 Bureau of Entomology and Plant Quarantine. 



