AMERICAN MOTHS OF THE SUBFAMILY PHYCITINAE 



219 



of the subterminal lines have the appearance, to the 

 naked eye, of broad, dark, weakly contrasted, trans- 

 verse fasciae. 



439. Bema yddiopsis (Dyar) 

 Relmis yddiopsia Dyar, Ins. Insc. Menstr., vol. 7, p. 68, 1919. 



Similar to ydda except ground color paler. Thorax 

 and base of forewing pale clay color; terminal area of 

 forewing also paler than the dark shade inwardly border- 

 ing the subterminal line. Alar expanse, 20-21 mm. 



Male genitalia similar to those of myja except some- 

 what larger; vinculum as narrow in proportion as that 

 of myja. 



Type locality: Tdnamo, Cuba (Mar., type in 

 USNM). 



Food plant: Unknown. 



Known only from the type and one other male from 

 the type locality. The type (in fair condition) shows 

 a few reddish scales in the dark area bordering the sub- 

 terminal Une, but I am unable to find any trace of the 

 "red streak along submedian fold" mentioned by Dyar. 



440. Bema fifaca (Dyar), new combination 

 Figure 973 

 Relmis fifaca Dyar, Proc. U. S. Nat. Mue., vol. 47, p. 337, 1914. 



Known only from the unique female type. This 

 specimen similar in color and markings to fresh speci- 

 mens of myja, of which it may be only a variety. The 

 labial palpi seem a trifle longer than those of myja and 

 the signum is somewhat larger but not different enough 

 to rule it out of that species. The outward dentations 

 of the antemedial whitish line, mentioned by Dyar, 

 also appear in some specimens of myja, depending upon 

 how much the specimen is rubbed or how much the 

 dark outer shading encroaches upon the white line. 

 They are not constant, and the line properly should be 

 described as slanting and straight. Alar expanse, 

 18 mm. 



Type locality: Porto BeUo, Panamd (Dec, type 

 in USNM). 



Food plant: Unknown. 



Genera 126-128: Homoeosoma to Rotruda 



[Venational division C. Forewing with 10 veins: 10 from cell, 

 8 and 9 united, 4 and 5 stalked or connate, 2 and 3 from cell. 

 Hind wing with veins 7 and 8 strongly anastomosed; 3 and 5 

 from cell; discocellular straight, vertical. Male genitalia with 

 uncus broad, subtriangular; apical process of gnathos fused; 

 vinculum stout, broad. Female genitalia with or without 

 signum; bursa, except for signum and some weak scobinations, 

 not sclerotized; ductus seminalis from bursa or ductus bursae.j 



126. Genus Homoeosoma Curtis 



Homoeosoma Curtis, Ent. Mag., vol. 1, p. 190, 1833. — Hulst, 

 Phycitidae of N. Amer., p. 191, 1890. — Ragonot, Mono- 

 graph, pt. 2, p. xiii, 1901. — Hampson in Ragonot, Mono- 

 graph, pt. 2, p. 227, 1901. — Janse, Journ. Ent. Soc. South 

 Africa, vol. 8, p. 26, 1945. (Type of genus: Phycis gemina 

 Haworth, synonym of Tinea sinuella Fabricius; figs. 112, 

 480, 978.) 



Phycidea Zeller, Isis von Oken, p. 178, 1839. (Type of genus: 

 Tinea sinuella Fabricius.) 



Tongue well developed. Antenna of male pubescent 

 and with a slight notch at base of shaft; of female, 

 simple. Ocelli present but small and lenses flattened 

 in some specimens. Frons rounded, labial palpus up- 

 curved ; somewhat rough scaled ; reaching to or slightly 

 above vertex; third segment slightly shorter than 

 second. Ma.xillary palpus filiform. Forewing smooth; 

 narrowly elongate; termen slanting; 10 veins: veins 2 

 and 3 from near lower outer angle of ceU, separate ; 4 and 

 5 stalked for at least half the length of vein 5; 6 from 

 below upper angle of cell, straight; 9 absent; 10 from 

 cell; male with a slight costal fold at base of wing. 

 Hind wing with seven veins; vein 2 from before lower 

 angle of cell; 3 and 5 from angle of cell and closely 

 approximate at base; 6 from upper angle of cell; 7 and 

 8 fused beyond cell almost to costa; discocellular vein 

 straight, nearly vertical and obsolescent; cell one-third 

 to two-fifths of wing length. Eighth abdominal seg- 

 ment of male simple (fig. 482e) with a single stout, 

 central thorn associated with sternite (figs. 483f-g), or 

 with a pair of weak ventrolateral hair tufts (fig. 489e). 



Male genitalia with uncus broad, subtriangular, 

 outer surface densely covered with bristlelike scales. 

 Gnathos terminating in a broadly triangulate or tear- 

 shaped fused apical process with a very small spine at 

 caudal end. Harpe simple; costa strongly sclerotized 

 for most or all of its length; apex broadly rounded. 

 Anellus U-shaped with narrow basal plate and long 

 slender lateral arms, or semitubular. Aedeagus more 

 or less sinuate, smooth or with a few minute scobina- 

 tions at apex. Penis with a patch or elongate roll of 

 sclerotized wrinklings, otherwise unarmed. Vinculum 

 stout and broad, short to long and with terminal 

 margin broadly roimded. 



Female genitalia with bursa copulatrix membranous, 

 finely scobinate over most of its inner surface; signum 

 a coarsely spined plate or altogether absent. Ductus 

 bursae membranous throughout, finely scobinate only 

 at or near junction with bursa copulatrix. Genital 

 opening simple (unsclerotized and without adjacent 

 sclerotized plates or other armature). Ductus semi- 

 nahs from bursa near its junction with ductus bursae. 

 Ovipositor lobes membranous or sclerotized. 



The genus, as here defined, is composed of two quite 

 dissimilar groups which eventually wiU require generic 

 separation. However, until the exact status of Pata- 

 gonia is estabhshed they may remain together in 

 Homoeosoma, for I believe that the name Patagonia can 

 be used eventually to include the whole of one species 

 group. From Homoeosoma I am removing mucidel- 

 lum Ragonot, relique.eUa Dyar, olivaceella Ragonot, 

 musiosum Dyar, cubellum Dyar, affusellum Ragonot, and 

 the European nimbeUum to a new genus {Rotruda), since 

 they differ strikingly on both male and female genitalic 

 characters from other species generally referred to 

 Homoeosoma. Further generic division of Homoeosoma 

 may be necessary when the genitalia of Old World 



