AMERICAN MOTHS OF THE SUBFAMILY PHyCITINAE 



107 



upper and lower veins of cell; subterminal line indicated 

 by an oblique, deeply dentate, broken, black inner 

 border; black discal dots at end of cell distinct, the 

 upper minute, the lower a short but conspicuous streak; 

 a row of black dots along termen; the blackish shading 

 otherwise consists of very fine dusting between the 

 veins, supplemented by some faint brownish shading 

 in the folds. Hihd wing whitish brown, the veins very 

 slightly dakened ; a pale brown line along termen. Alar 

 expanse, 32-34 mm. 



Male genitalia with apical process of gnathos with 

 the lateral angles of the flanged plate incurved and 

 broadly rounded. Apex of cucullus not projecting 

 beyond sclerotized costa of harpe. Cornuti two stout 

 thorns, less than half as long as aedeagus; the latter 

 short, stout, straight. 



Type locality: North America, but otherwise 

 unspecified (type in Paris Mus.). 



Food plant: Unknown. 



Distribution: United States: Washington, Wenat- 

 chee (May). Canada: British Columbia, Keremeos 

 (June) . 



This species was removed by McDunnough (1935) 

 from the synonymy of Ambesa lallatalis (Hulst) where 

 it was placed originally by Ragonot (1889), presumably 

 on the basis of specimens of supposed lallatalis sent him 

 by Hulst. The latter species was misidentified by 

 Hulst himself as weU as by later authors. 



220. Interjectio coltimbiella (McDunoough), new combination 



Figure 784 



Ambesa columbiella McDunnough, Canadian Ent., voL 67, p. 

 175, 1935; Check list, No. 6159, 1939. 



Similar to denticulella but without the well-contrasted 

 dark markings of that species; the black spot on inner 

 margin, preceding the antemedial line, entirely lacking 

 and the dark markings themselves more brown than 

 blackish, except for the small, narrow black lower discal 

 dot, an occasional black dot on vein lb near base, and 

 some blackish dots along termen; the brown markings 

 Umited to streakings on the veins and (where the trans- 

 verse lines are distinguishable) to a narrow dark shade 

 along inner margin of the subterminal line. Hind 

 wings as in denticulella. Alar expanse, 23-34 mm. 



The species averages smaller than denticulella, espe- 

 cially the females, which are even smaller than any of 

 the males before me. 



Male genitalia similar to those of denticulella except 

 cornuti distinctly more slender. Female genitalia 

 (figured from a Pullman, Wash., specimen from a series 

 associated with males of the same locaUty) with 

 sclerotized ductus bursae projecting as a short shield 

 at genital opening. 



Type locality: OUver, British Columbia (type in 

 Canadian Nat. Coll.) 



Food plant: Unknown. 



Distribution: United States: Utah, Stockton 

 (June); Washington, Pullman (May, June), Yakima 

 (June). Canada: British Columbia, Oliver (June); 

 Alberta, Lethbridge (July). 



221. Interjectio ruderella (Ragonot), new combination 



Figure 785 



Epischnia ruderella Ragonot, N. Amer. Phycitidae, p. 9, 1887; 

 Monograph, pt. 1, p. 514, 1893.— Hulst, Phycitidae of N. 

 Amer., p. 162, 1890.— McDunnough, Check list. No. 6249, 

 1939. 



This species is known only from the female type, 

 which, from Ragonot's description and figure, must be 

 very close to some of the small females of columbiella, 

 especially paler examples from Pullman, Wash., except 

 that the lower discal spot is a more contrasted black 

 streaklet. Alar expanse, 24 mm. 



The genitalia show a broader and stronger sclerotiza- 

 tion of the ductus bursae at its junction with bursa than 

 tjrpical columbiella; but this character is approached in 

 Utah examples of the latter species. 



Type locality: "North America" [given as "without 

 doubt from California" in the Ragonot Monograph] 

 (type in Paris Mus.). 



Food plant: Unknown. 



222. Interjectio niviella (Hulst), new combination 

 Figure 309 



Lipographis niviella Hulst, Ent. Amer., vol. 4, p. 117, 1888. 



Ambesa niviella (Hulst) Ragonot, Ent. Amer., vol. 5, p. 115, 

 1889; Monograph, pt. 1, p. 241, 1893.— Hulst, Phycitidae 

 of N. Amer., p. 141, 1890. — McDunnough, Check list, No. 

 6157, 1939. 



Forewing chalk white; a large black patch bordering 

 inner margin of antemedial line and extending from 

 inner margin to top of cell; antemedial line faint but 

 complete, oblique from costa to lower vein of cell, thence 

 concave to inner margin, bordered outwardly by a black 

 line, which is more or less broken into spots on upper 

 half; black streaks and wedges on the outer veins indi- 

 cating the deeply notched, otherwise obscure sub- 

 terminal line; both discal spots conspicuous, black; a 

 row of short black streaklets along outer margin; on 

 some specimens smears of a faint, pale, ocherous brown 

 tint towards apex; a fine brown line along termen. 

 Alar expanse, 25-28 mm. 



Male genitalia with apical process of gnathos a broad- 

 ly crescentiform plate with the lateral angles slightly 

 produced ; the terminal hook short and slender. Harpe 

 with apex of cucuUus projecting beyond the sclerotized 

 costa. Cornuti a cluster of several short, stubby 

 thorns. Aedeagus rather slender, sinuously curved. 



Type locality: Colorado (type in AMNH, ex- 

 Rutgers). 



Food plant: Unknown. 



Distribution: United States: Colorado; Iowa, 

 Sioux City. Canada: Manitoba, Aweme (July), Cart- 

 wright, Winnipeg. 



The type is a female without abdomen. I have seen 

 but one other female and it too was without abdomen, 

 so the female genitalia could not be studied. These 

 specimens matched the males in every detail of color 

 and macidation. 



