AMERICAN MOTHS OF THE SUBFAMILY PHYCITESTAE 



35 



its center; in the intersegmental area two pairs of mem- 

 branous eversable lobes (not haired), one long ventro- 

 lateral pair and one shorter dorsolateral pair. 



Male genitalia with apical process of gnathos a nar- 

 row, somewhat flattened hook with slightly forked apex. 

 Uncus triangulate. Transtilla complete, stout; a rather 

 short bridge with long widely spaced lateral arms pro- 

 jecting backward; and a similarly spaced, shorter pair 

 of arms projecting forward and articulating with the 

 anellus. Harpe with a strong, long hair tuft from outer 

 surface of base of sacculus, otherwise simple. Anellus 

 a narrow plate with very long, slender, strongly sclero- 

 tized, lateral arms. Aedeagus rather long and slender, 

 sclerotized only on dorsal half; penis with some weak 

 wrinklings and minute scobinations near apex, other- 

 wise unarmed. Vinculum approximately triangulate, 

 but slightly longer than its greatest width; its central, 

 ventral area unsclerotized. 



I very much dislike to erect a new genus on a single 

 male; but the genitalic and secondary male characters 

 of this example are so striking and its distinctness from 

 any known genus is so obvious it seems best to give it 

 a name and separate designation. The genus is ap- 

 parently closest to Hemiptilocera. 



62. Heras disjunctus, new species 



Figure 184 



Forewing rosy fuscous with costal area beyond ante- 

 medial line broadly clay colored (pale ocherous); the 

 rose shade predominant on upper part of wing, the fus- 

 cous shade more accented in lower fold and along inner 

 margin; antemedial hne weak, indicated chiefly by a 

 distinct but small whitish ocherous spot near inner mar- 

 gin; subterminal more distinct, whitish ocherous, ter- 

 minating at inner margin in another pale spot similar 

 to the one on antemedial Hne, inner dark margin of 

 subterminal line narrow and very faint; discal dots at 

 end of cell confluent, blackish; terminal dots confluent, 

 some faint blackish streaking on the veins before and 

 beyond the subterminal line. Hind wing pale smoky 

 fuscous ; darker along the veins and towards outer mar- 

 gin. Alar expanse, 22 mm. 



Male genitalia with the long posteriorily projecting 

 arms of transtilla terminating in flattened lobes; apex 

 of uncus narrowly rounded. Vinculum tapering to 

 evenly rounded terminal margin. Female unknown. 



Type locality. Don Amo, Colombia (200 ft., July) 

 (type in Janse Coll.). 



Food plant. Unknown. 



Described from unique male type. Superficially (in 

 maculation and color) it strongly resembles Hyalospila 

 stictoneurella Ragonot. 



13. Adanarsa, new genus 



Type of genus: Rhodophaea intransitella Dyar. 



Tongue weU developed. Antenna simple and pubes- 

 cent in both sexes. Labial palpus upturned, reaching 

 to vertex; slightly flattened laterally; thu-d segment 

 about half the length of second, blunted and slightly 



broadened (ventrally) by scales at apex. Maxillary 

 palpus small, squamous. Forewing smooth; 11 veins; 

 vein 2 from well before lower outer angle of cell; 3 from 

 the angle; 4 and 5 shortly stalked, separated at base 

 from 3 ; 6 from below upper angle of cell, straight; 8 and 

 9 stalked for half their lengths; 10 from the cell, closely 

 approximate to the stalk of 8-9 for a short distance be- 

 yond cell; male without costal fold. Hind wing with 

 vein 2 from well before lower outer angle of cell ; 3 from 

 the angle, approximate to 4-5 at base; 4 and 5 stalked 

 for half or nearly half their lengths; 7 and 8 weakly 

 anastomsed for a short distance beyond cell; cell half 

 the length of wing; discocellular vein cm-ved. Eighth 

 abdominal segment of male with a small pair of ventro- 

 lateral hair tufts. 



Male genitalia with apical process of gnathos a slen- 

 der, rather long hook with slightly forked apex. Uncus 

 semitriangulate. Transtilla complete, strongly sclero- 

 tized and arched, supporting at its center a rather nar- 

 row, smooth, curved crosspiece. Harpe with strongly 

 sclerotized, erect clasper, otherwise simple. Anellus 

 with short, broad, dorsoventrally flattened lateral arms. 

 Aedeagus with a row of very fine serrations along one 

 lateral edge towards apex; penis armed with a single, 

 slender, sinuate, cornutus. Vincidum stout, about as 

 long as greatest width; terminal margin broad. 



Female genitalia with cornutus developed as a single, 

 short, stout, hooked thorn ; ductus bursae much shorter 

 than bursa, broad, flattened and with a broad transverse 

 sclerotized band across it at junction of ductus and 

 bursa ; genital opening weakly and narrowly sclerotized 

 along its lower margin and with a naiTow, transverse 

 sclerotized band in the membrane just behind the open- 

 ing; ductus seminalis from bursa near its junction with 

 ductus biu-sae. 



A distinct genus distinguished from related genera 

 with complete transtilla by the strongly sclerotized 

 clasper and the slight but definite anastomoning of 

 veins 7-8 of hind wing. The amount of anastomosis 

 varies in different specimens of the type species but is 

 always present and always for somewhat less than half 

 the length of the veins. 



63. Adanarsa intransitella (Dyar), new combination 



Figures 185, 667 



Rhodophaea intransitella Dyar, Proc. Ent. Soc. Washington, vol. 

 7, p. 33, 1905.— McDunnough, Check list, No. 6075, 1939. 



Forewing pale ash gray with a fine scattered dusting 

 of black scales and a very faint clouding of ocherous 

 fuscous above iimer margin between the transverse 

 lines ; antemedial line obsolete, indicated only by small 

 black spot on costa and a larger black spot on inner 

 margin at what would be the inner margin of the trans- 

 verse line ; outer line faint, indicated chiefly by border- 

 ing black dashes on costa, a faint blackish line along 

 its outer border and a few inwardly bordering black 

 dots ; lower discal spot black, followed outwardly by an 

 obsciu-e dark streak ; a row of black dots along termen. 

 Hind wing whitish, subpellucid; more or less shaded 



