NEOTROPICAL MICROLEPIDOPTERA, VIII — DUCKWORTH 397 



fuscous scales; costal edge fulvous; a faint fuscous subterminal line 

 from middle of costa to near termen beneath apex, then sharply 

 angulated and sinuate to dorsum before tornus; a terminal series of 

 fuscous dots. Cilia concolorus with ground color. Hindwing bright 

 yellow basally, apical fourth fuscous; cilia fuscous. 



Male genitalia: See figures (slide W.D.D. 3125, type). Uncus erect, 

 rounded apically; gnathos as in antitypa; subscaphium absent; harpe 

 narrow, slightly curved, bluntly pointed apically; anellus with four 

 lateral lobes, ventral pair simple, setiferous, dorsal pair asymmetrical, 

 one long, curved 90° laterad near apex, inner margin serrate at apical 

 third, apex acute, other shorter, slightly curved laterad, apically 

 acute; aedeagus with a thin, straight lateral process, vesica clothed 

 with tiny spines. 



Female genitalia: Unknown. 



Type: In the Naturhistorisches Museum, Vienna, Austria. 



Type locality: Teffe, Amazonas, Brazil. 



Distribution: Brazil: Teffe, Amazonas [no date]. 



Through the courtesy of Dr. Fritz Kasy, Naturhistorisches Museum, 

 Vienna, I have had the opportunity to study Meyrick's type specimen 

 which is the only known example of this species. The fuscous margin 

 on the hindwing and the large, hooked lateral process of the aedeagus 

 in the male genitalia readily distinguish caustopis. 



Falculina lepidota Meyrick 



Figures 2d, 3/, 5; Plate 1 (fig. 5) 

 Falculina lepidota Meyrick, 1916, Exotic Microlepidoptera, vol. 1, p. 482. 



Alar expanse 28-36 mm. 



Antenna whitish basally, brown beyond. Head whitish, shaded 

 laterally with yeUow; second segment of labial palpus whitish, shaded 

 with yellow ochreous on outer side, white on inner side, apical segment 

 white. Legs whitish ochreous, shaded with brown. Thorax as in 

 caustopis. Forewing with veins 7 and 8 separate; maculation as in 

 caustopis. Hindwing in female grayish basally, yellow apically; in 

 male fuscous tinged with yellow ochreous at apex; cilia whitish 

 ochreous in female, grayish ochreous in male. 



Male genitalia: See figures (slide W.D.D. 2641). Uncus short, 

 curved ventrad, apically acute; gnathos two separate truncate 

 arms with yokelike ventral connection from their bases; subscaphium 

 absent; harpe broad basally, ventral edge clothed in short, heavy 

 setae from basal third to apical third ; anellus with four lateral lobes, 

 ventral pair simple, setiferous, dorsal pair asymmetrical, one longer, 

 apically acute, bladelike, other shorter, twisted, apically rounded; 

 aedeagus with a long, recurved lateral process, vesica clothed with 

 tiny spines. 



