NEOTROPICAL MICROLEPIDOPTERA, III — CLARKE 67 



Gonionota dissita, new species 



Figure 2e; Plate 3 (Fig. 5) 



Alar expanse 20-22 mm. 



Labial palpus missing. Antennal scape reddish ocherous dorsally, 

 silvery white ventrally; remainder of antenna buff yellow proximally 

 shading to brownish distally. Head and thorax buff yellow, the 

 former with sparse, scattered reddish ocherous scales, the latter with 

 abundant reddish ocherous scaling; posterior tuft brown. Fore wing 

 ground color brown, blotched dorsally with fuscous; base, to two- 

 fifths of costa and dorsal fourth, buff yellow strongly mixed with 

 reddish ocherous; outer margin of basal patch irregularly oblique, 

 costal margin shaded with brown; from costal two-fifths an obhque, 

 narrow blotch, the same color as basal patch, extends to end of cell 

 and terminates in a small white dot; basal and outer light areas 

 separated by an arm of ground color; in cell, at about two-fifths, a 

 fuscous spot; from costa to tornus, at about outer fifth, an indistinct 

 row of fuscous spots parallel to termen; at apical fourth, on costa, a 

 prominent, narrow triangular white streak bordered on its inner 

 margin with reddish ocherous and followed by white scaling to apex; 

 ciha brown except those in apical third tipped white. Hind wings 

 brownish but much paler basally ; cilia ocherous white shaded brownish 

 around apex. Legs silvery white ; forefemur overlaid with brownish on 

 outer side ; foretibia and first tarsal segment reddish ocherous on outer 

 side; midfemur and tibia shaded with pale brown on outer side. 

 Abdomen brownish dorsally, white ventrally. 



Female genitalia: Ostium broad, opening into broadly funicular 

 sclerotized posterior portion of ductus bursae; inception of ductus 

 seminalis dorsal, approximately at junction of membranous and 

 sclerotized parts of ductus bursae. Signum a long, slender, sclerotized, 

 dentate plate. 



Slides examined: 99, JFGC nos. 4235, 11104. 



Type: Trinidad, Port of Spain (no date, F. W. Urich), USNM 66372. 



Described from the type and one female para type as follows: 



Trinidad: ?, "Mt. St. B." (Bro. Maur, 1923). 



Under determinata I have discussed the apparent relationships of 

 this species. In dissita the basal patch is bordered outwardly by a 

 less irregular margin than the other species, and the basal patch is 

 separated from the costal blotch by a broad triangular arm of ground 

 color. 



Unfortunately, both specimens from which this species is described 

 are damaged, but the species is distinct and is the basis for the first 

 record of this group from the West Indies. 



