AMERICAN MOTHS OF THE SUBFAMILY PHYCITINAE 



277 



168. Gennadius, new genus 



Type of genus: Gennadius junctor, new species. 



Tongue well developed. Antenna of male with basal 

 segment narrowly elongate, bearing a short spur from 

 middle of inner side ; shaft with a short spur from basal 

 joint, deeply curved for several segments beyond, pu- 

 bescent. Labial palpus oblique, slender, dorsoventrally 

 flattened, reaching above vertex; third segment about 

 as long as second. Maxillary palpus moderately sized, 

 flatly scaled and appressed to face. Forewing with a 

 subbasal clump of raised scales (possibl}^ a male or spe- 

 cific character) ; 1 1 veins ; veins 2 and 3 stalked ; 4 and 5 

 stalked (for about half their lengths) ; 6 curved, and 

 connate with the stalk of 8-9-10; 8 and 9 stalked; 10 

 from the stalk of 8-9; cell open (discocellular vein ab- 

 sent) ; male without costal fold. Hind wing of male 

 with vein 2 from very close to angle of cell; 3 and 5 

 stalked; 7 and 8 united; in male costa triangidarly pro- 

 duced and outer margin concave between veins 7 and 5; 

 cell closed, very short (less than one-foiu-th the length 

 of wing in male) ; discocellular vein ciu-ved. Sternite of 

 eighth abdominal segment of male developed as a 

 triangulate, sclerotized pocket. 



Male genitalia as in Farnobia except: Apical hook of 

 gnathos slightly furcate at apex; lateral lobes of trans- 

 tiUa bluntly pointed rather than rounded ; lateral arms 

 of anellus shorter, narrower and tapering; harpe not 

 incurvate between succulus and cucullus. Most of 

 these differences are probably specific rather than 

 generic in character. 



Female unknown. 



The genus is very close to Farnobia as indicated by 

 the antennal and genitalic structiu-es and the open cell 

 of forewing, but is easily separated by the stalking rather 

 than fusion of veins 2 and 3 of forewing and by the 

 closed cell and the absence of vein 8 in hind wing. 



570. Gennadius junctor, new species 

 Figures 97, 587 



Forewing brown with a purplish tint ; the costal area 

 dusted with ocherous gray; some blackish streaking on 

 upper vein of cell and along median fold and a few 

 blackish spots indicating the broken margins of the 

 transverse lines ; a conspicuous white patch along inner 

 margin between antemedial and subterminal lines and 

 extending from inner margin to cell; transverse lines 

 obscure. Hind mng very pale brown; terminal margin 

 and veins little if any darker; in the male rather coarsely 

 scaled over most of undersurface and with a border of 

 coarse, thick, ocherous scaling along costa. Alar 

 expanse, 22.5 mm. 



Male genitalia as given for the genus; figure 587b 

 shows the penis extruded to display the cornuti. 



Type locality: St. Jean Maroni, French Guiana 

 (type in USNM, 61386). 



Food plant: Unknown. 



Described from male type and one male paratype 

 from the type locality (Schaus, collector, no date given) . 



The species is easily identified by its structural 

 characters and the elongate white patch on inner 

 margin of forewing. 



169. Genus Micromescinia Dyar 



Micromescinia Dyar, Proc. U. S. Nat. Mus., vol. 47, p. 347, 1914. 

 (Type of genus: Micromescinia pygmaea Dyar.) 



Tongue well developed. Antenna simple. Labial 

 palpus oblique, reaching to or a trifle above vertex; slen- 

 der; third segment nearly as long as second, acuminate. 

 MaxiUary palpus minute, filiform. Forewing smooth; 

 10 veins; veins 2 and 3 stalked; 4 and 5 long stalked; 6 

 from below upper angle of cell, very slightly curved; 8 

 and 9 united (9 absent) ; male with a short costal fold 

 enclosing a hair tuft. Hind wing with 2 from before 

 (but near) lower outer angle of cell; 3 and 5 stalked, 

 from the angle; 7 and 8 completely fused beyond cell; 

 cell partially open (only a rudiment of discocellular 

 vein), long, a trifle more than half as long as wing. 

 Eighth abdominal segment of male simple. 



Male genitalia with apical process of gnathos devel- 

 oped as a stout, curved, bluntly pointed hook. Uncus 

 stout, hoodlike, scarcely tapering and with broadly 

 rounded terminal margin. TranstiUa complete , a bridge 

 with central fm-cate projection, not appreciably arched. 

 Harpe with costa produced and angulate at middle. 

 Anellus a U-shaped plate with rather short lateral arms. 

 Aedeagus rather slender, simple, slightly curved; penis 

 armed with a thin elongate sclerotized band. Vincu- 

 lum moderately stout, about as broad as long, triangu- 

 late. 



Female genitaUa with bursa copulatrix weakly and 

 sparsely scobinate; signa present as a cluster of (3 or 4) 

 small, weakly sclerotized discs. Ductus bursae sclero- 

 tized, granulate and flattened for two-thirds of its length 

 from genital opening and with a produced, angulate, 

 sclerotized shield behind genital opening. Ductus sem- 

 inalis from bursa near signa (near anterior end of bursa) , 



A distinct genus showing affinities, especially in fe- 

 male genitalia, to Ephestiodes and several of the follow- 

 ing genera. Contains one tropical American species. 



571. Micromescinia pygmaea Dyar 



Figures 96, 595, 1083 



Micromescinia pygmaea Dyar, Proc. U. S. Nat. Mus., vol. 47, 

 p. 347, 1914. 



Forewing pale ocherous ^vith a narrow purplish red 

 shade along costa and a similarly colored broad suffu- 

 sion along termen. Hind wing pale smoky fuscous, paler 

 towards base. Alar expanse, 9-10 mm. 



Genitalia as given for the genus; cucullus of harpe 

 angulate, apex bluntly pointed. 



Type locality: Porto Bello, Panamd (type in 

 USNM). 



Food plant: Unkno^vTi. 



Distribution: PanamX.: Porto Bello (Mar.), Taber- 

 nilla, Taboga Isl. (Feb.). 



Known only from the original type series (two males 

 and one female) in the National Collection. 



