( 461 ) 



upper end of cell : all five snbcostals stalked. Hindwiugs with first subcostal and 

 second median from before end of cell. Wings with marginal and submarginal lines 

 of metallic spots. 



Type : Molyhdogompha bixeriata sp. nov. 



134. Molybdogompha biseriata sp. nov. 



Fore/rings : dull ochreous yellowish, with fine transverse darker striae : basal 

 half of costa dotted with dark ; a rather large oval blackish cell-spot ; a snb- 

 marginal row of metallic spots, followed by a bright line : marginal area deeper 

 yellow, with the transverse striae denser ; fringe pale leaden-grev. 



Hiiidwings : similar, but without any cell-spot. 



Underside pale ochreous, in the forewings suffused with brownish. Head, 

 thorax, and abdomen ochreous. 



Expanse of wings : 22 mm. 



One c? from Paraguay (Dr. Bohls). 



l:i."). Opisthoxia nitidisquama sp. nov. 



Forewiny.s : pale mouse-grey; the costa yellow, marked, especially near base, 

 with brilliant metallic scales ; three diffuse transverse fasciae of metallic scales, 

 the first broad near base, the second narrower, just beyond middle, and curved 

 below costa, the third submarginal, consisting of coalescent spots, the two below 

 apex disconnected and embossed : outer half of wing dusted coarsely with Ijlack 

 scales ; fringe concolorous. 



Hiiidtcings: with the basal area and the inner margin dusted with metallic 

 scales ; a sinuous metallic fascia from below apex to anal angle, bordering beyond 

 the cell a large ocelloid sjwt, the centre black, the iris yellow, broad and split up 

 into two rings by a leaden middle ring ; the outer part of the iris hidden by a large 

 embossed spot of metallic scales, which jiartly encroaches on the black jnipil. 



Underside pale grey, with the margins darker. Head, thorax, and abdomen 

 mouse-grey, the thorax with metallic scales ; face and jialpi fuscous, rufous-tinged. 



Expanse of wings : 28 mm. 



One c? from Rio Demerara. 



Trichogompha gen. nov. 



Fore/ci/igis : with costa straight, convex before apex ; hindmargin curved. 



Jlinclwing)i : with hindmargin curved : the costa strongly convex. 



Palpi and antennae as in Ajdoqoviphu. 



Nearation: forewings, cell half as long as wing; discocellular iuangulated: 

 first median at two-thirds, bent downwards at origin and running to near anal 

 angle ; second well before angle of cell, third from angle ; the two railials stalked 

 togetlier from up|)er angle ; the five snbcostals stalked ; submedian vein with two 

 long tufts of hair, one from near base, the other from towards anal angle, con- 

 vergent and overlapj)ing in midwing. Iliiidwings with costal vein abruptly arched 

 near base ; the first subcostal aud second median from before ends of cell ; first 

 median at two-thirds, straight ; costal area pale, with a radiating bed of flat hairs 

 on the costal edge. 



Type: Trichngomphn opulenta Th. Mg. (Fidonia). 



