A NEW BRAZILIAN MOTH — DUCKWORTH 385 



Gonioterma algosa (Meyrick), new combination 



Figures lh,i; 2d 

 Stenoma algosa Meyrick, 1916, Exotic Microlepidoptera, vol. 1, p. 537. 



Type locality: Rio Maroai, Frencli Guiana. 



Male genitalia: See figures lh,i (slide WDD 2549, Rio Maroni, 

 French Guiana). Uncus reduced, curved sharply ventrad; gnathos 

 incomplete, basal process poorly developed, short, blunt; division of 

 gnathal arms at base of process; tegumen moderately constricted; 

 harpe narrow, saccular lobe broad, rounded; anellar lobes narrow, 

 vesica armed with one elongate, convoluted cluster of small, heavy 

 cornuti. 



Female genitalia: Unknown. 



This species is readily identifiable by the narrow anellar lobes 

 that taper to sharply pointed apices. Also, the lateral portions of 

 the second and third abdominal terga have patches of large pores 

 around which the cuticle is very heavily sclerotized (fig. 2d), The 

 other species included in this study possess these patches of large 

 pores (fig. 2e), but the heavy sclerotization occurs only in G. algosa. 



Gonioterma fastigata (Meyrick), new combination 



Figure 3a 

 Stenoma fastigata Meyrick, 1915, Exotic Microlepidoptera, vol. 1, p. 430. 



Type locality: Bartica, British Guiana. 



Male genitalia: Unknown. 



Female genitalia: See figure 3a (slide WDD 2551, Bartica, British 

 Guiana). Genital plate membranous; ostium small, ostium bursae 

 enlarged; ductus bursae moderately long; corpus bursae with two 

 dentate signa; anterior margin of eighth abdominal tergum with two 

 lateral hooldike lobes curving toward midline. 



The two lateral hooklike lobes from the anterior margin of the 

 eighth abdommal tergum serve to distinguish the females of G. 

 fastigata. 



Gonioterma bryophanes (Meyrick), new combination 



Figures Ij, 36 

 Stenoma bryophanes Meyrick, 1915, Exotic Microlepidoptera, vol. 1, p. 477. 



Type locality: Rio Maroni, French Guiana. 



Male genitalia: See figure Ij (slide WDD 2838). Uncus long, 

 curved slightly ventrad; gnathos incomplete, basal process v/ell 

 developed, long, truncate at apex; division of gnathal arms near base 

 of process; tegumen moderately constricted; harpe broad, saccular 

 lobe only slightly developed; anella,r lobes broad, bluntly pointed at 



