222 



•UNITED STATES NATIONAL MUSEUM BULLETIN 207 



Distribution: United States: Arizona (no further 

 locality), Prescott (July); Colorado. Miixico: Sonora. 



The t3T3e and only specimen in Paris is from "Senora" 

 [sic], Mexico, Morrison, 1883, labeled in Ragonot's 

 handwriting "Homoeosoma illuviella Rag. pi. xxxiii, 

 fig. 11, type original." It is a female and not a male as 

 stated in the original description. I have examined the 

 genitaha. The tj^je of candidellum has been examined 

 by Ragonot as the label indicates. It also is a female 

 with a glued-on abdomen. However, there is no doubt 

 that it is conspecific with illwddlum. 



4Ari. Homoeosoma illuyiellum emendator, new race 

 FiGUEE 980 



Differs from typical Uluvidlum only in color and in- 

 tensity of markings; head, thorax, and forewing a pale 

 slate gray rather than white; dark spots as in illumellum 

 but more conspicuous and the dark shading along outer 

 line more pronounced; hind wings darker. Alar ex- 

 panse, 25-29 mm. 



Genitaha as in illumellum. 



The new name is given with considerable hesitation 

 as this may prove to be only a color form. However, as 

 several distinct species in Homoeosoma cannot be sepa- 

 rated by genitaha and the specimens before me are so 

 different in color from true Uluviellum, I suspect that 

 they represent something more than a mere color form, 

 possibly a food-plant race. 



Type locality: Chimney Gulch, Golden, Colo. 

 (May; type in USNM, 61371). 



Food plant: Unknown. 



Described from male type, one male paratype from 

 Breckenridge, Colo. (June), one female paratype from 

 Eureka, Utah (June 2, 1917, Tom Spalding), and two 

 female paratjrpes from Richfield, Utah (May 20, 22, 

 1930). 



Genus fl^omoeosoma, Species 448-453: H. imitator 

 to H. deceptorium 



[Male with apical process of gnathos broadly triangulate, aneUus 

 U-shaped, eighth abdominal segment with a strong thornlike 

 process associated with sternite; female with signum, ovipositor 

 lobes unsclerotized.] 



448. Homoeosoma imitator, new species 

 FiGtmEs 483, 984 



In color and markings similar to striatellum Dyar but 

 strikingly different in structure. The presence of the 

 thornhke process on eighth abdominal segment at once 

 distinguishes it from all the species of the foregoing sub- 

 group, and the produced lateral arms of vinculum from 

 all the species of this group except longiventrellum. The 

 eighth segment process varies in length in different 

 specimens. Extremes of variation are shown in figiures 

 483f and 483g. 



Alar expanse, 19-24 mm. 



Type locality: Palm Springs, Riverside County, 



Calif, (type in USNM, 61372; paratypes in Los An- 

 geles County Mus., Calif.). 



Food plant : Unknown. 



Described from male type and three male and three 

 female paratypes from the type locahty (Mar.), one 

 male paratype from West Riverside, CaHf. (Feb. 16, 

 1906), and two female paratypes from Palo Verde, 

 Imperial County, Cahf. (Feb. 10, 1940). 



449. Homoeosoma longiventrelluni Ragonot 



FiGUBE 484 



Homoeosoma longiventrella Ragonot, Nouv. Gen., p. 34, 188S; 



Monograph, pt. 2, p. 253, 1901. 

 Homoeosoma longiventrella noctividella Ragonot, Monograph, pt. 



2, p. 253, 1901. 



There are no specimens from tropical America agree- 

 ing with Ragonot's description or figure of longiventrella 

 in the National Collection. The type is in the British 

 Musemn but lacks an abdomen. In Paris, Clarke lo- 

 cated but one specimen in the Ragonot Collection, a 

 male from Chiriqui, Panamd, labeled (in Ragonot's 

 handwriting) "var. noctividella Rag." If the genitalia 

 (figured) of this specimen represent, as they presumably 

 do, the true longiventrella the species should be easily 

 recognized, for it is the only one of the tropical species 

 with projecting arms from vinculum and a thornlike 

 projection from the eighth abdominal segment. The 

 projecting arms of vinculum are exceptionally long. 



Type localities: Chile (?) (longiventrellum, in BM); 

 locality not known to me (noctividellum, in Mus. Univ. 

 Berlin) . 



Food plant : Unknown. 



450. Homoeosoma albescentelliun Ragonot 



Figures 487, 983 



Homx>eosoma albescentella Ragonot, N. Amer. Phycitidae, p. 15, 

 1887.— Hulst, Phycitidae of N. Amer., p. 192, 1890.— 

 Hampson, in Ragonot, Monograph, pt. 2, p. 250, 1901. 



Homoeosoma elongellum Dyar, Proc. Ent. Soc. Washington, vol. 

 5, p. 227, 1903.— McDunnough, Check list. No. 6365, 1929. 

 (New synonymy.) 



Homoeosoma albescentellum (Ragonot) Hulst, U. S. Nat. Mus. 

 Bull. 62, p. 434, 1903.— McDunnough, Check list. No. 6368, 

 1939. 



Rather pale brownish fuscous, dusted with white 

 scales and with darker markings accented. The white 

 scaling concentrated on the costal half of forewing, 

 giving the lower half a contrasting brownish shade; 

 transverse antemedial band blackish brown, normally 

 angnlate but outwardly rounded in occasional speci- 

 mens; subterminal line inwardly angled at vein 6 and 

 inwardly shaded with blackish brown, especially towards 

 costa; discal spots at end of ceU small, but distinct. 

 Hind wing smoky fuscous. 



From others in the subgroup having a ventral, thorn- 

 like process from the eighth abdominal segment of the 

 male, this and the three species following are distin- 

 guished by their simple vinculi (without produced lat- 

 eral arms). Alar expanse, 21-30 mm. 



Male genitalia figured from type of elongellum. Fe- 

 male genitalia figured from the type of albescentellum 



I 



