( 475 ) 



outer Hue oblique, from middle of inner margin to eosta at iive-sixth.s, blackisli, 

 slightly denticulate, marked by lilack daslics on veins, closely followed by a dark 

 grey or blackish shade ; snl)marginal line double, denticulate, the inner arm more 

 distinct, the outer marked by black dashes on veins ; a row of black marginal 

 dots ; fringe grey ; cell-spot black. 



Hindwinys: similar, but paler ; the outer series of lines only distinct on inner 

 margin ; cell-spot black. 



Underside of forewings dark grey, of hiudwings paler with dark grey frecklings ; 

 both with cell-spot and outer line marked. Head, thorax, and abdomen concolorons 

 with wings ; abdomen marked with pairs of black dots. 



Expanse of wings : 28 mm. 



Two <i S from Bogota. 



The margin of hiudwings is sliglitly crenulate. 



168. Fidonia flavinigra sp. nov. 



Foreiciiiijs : deep yellow, with the apical third bronzy brown-black ; costa for 

 two-fifths from base broadly brown-black, thence narrowly to the apical area : in 

 the ? the basal streak towards its end is connected with a small dark spot below 

 the subcostal vein ; the inner edge of the dark apical area is more irregular and 

 ends nearer the anal angle in the <S than in the ? . 



Hinclwings : yellow, with a uniformly broad dark liindmargin. 



Underside like upper. Face and palpi dull yellow, mi.\;ed with fuscous ; vertex 

 fuscous ; thorax and abdomen yellow, the latter fuscons-tinged towards apex ; legs 

 yellow, the forelegs externally fuscous. 



Expanse of wings : 28 mm. 



A pair from Ciicuta, Venezuela. 



SuBF.\MiLY SELIDOSEMINAE. 

 Oenoptila Warn, Nov. Zool. II. p. 131. 



Forewings : with costa nearly straight, carved before apex ; apex slightly pro- 

 duced, blunt ; hindmargin curved, slightly gibbous in middle. 



Hind wings : with hindmargin rounded, the anal angle well marked ; antennae of 

 <? simple; palj)i stout, the second ijoint sijuamons, the terminal joint minute, porrect; 

 tongne present ; hindtibiae not thickened, witli four spurs. 



JS^'uration : forewings, cell more than half as long as wing; discocellnlar 

 concave ; first median just beyond one-half, second well before end of cell, third 

 from end ; lower radial from middle, upper from the top of discocellular ; 7, 8, 9, 10, 

 stalked from before the end ; 11 anastomosing with the costal; 10 with II, and 

 again with 8, 9. In the hiudwings the first subcostal and second median both rise 

 before the end of cell. 



Type : Oenoptila mixtala Gueu. (Ouye/ia). 



The diagnosis of this genus was omitted in the original publication. The three 

 species there referred to mixtafa are distinct. Guenee's Iransitaria, with which 

 Walker's expulsaria is identical, is considerably smaller than mixtata Guen., and 

 will stand as Oenoptila transitaria. On the other hand alexonaria Wlk., which 

 is a Jamaican species, has pectinated antennae, and must be removed to a separate 

 genus, for which I propose the name Oenothalia. It differs from Oenoptila in the 

 neuration also : vein 11 of forewings not anastomosing entirely with 12, but merely 

 touching it at a point. 



