( 313 ) 



two-tliii'ds of cosfa, becomes very narrow below apex, and ends in a point at anal 

 angle ; ttie fringe only of the abdominal margin black. 



Expanse of wings : 32 mm. 



1 (? from Castro, Parana (E. D. Jones), 



14. Dioptis chloris. 



Dinptis chloris Drnce, Pr. Z. S. 1803, p. eo."), <S. 



A ? from Carillo, Costa Rica, differs from the d in having the first cross-band, 

 which rnns from below middle of costa towards anal angle, very mnch broader aii<l 

 ampler. The ? expands 30 mm. 



The species differs from other Diopfis in having the cell shorter, scarcely more 

 than one-third of wing, vein 2 from jnst before end of cell, and 3, 4 long-stalked ; 

 the other nervnles being lengthened in proportion. 



15. Dioptis vacuata spec. nov. 



Forewing : hyaline grey ; all the veins thickly black, the folds more finely ; 

 costal and inner margins black ; hindmargin more broadly, especially at apex ; 

 a black oblique mark across the discocellnlar, followed by a broad black roughly- 

 edged streak from two-thirds of costa to near end of vein 4, where it is bent at right 

 angles, and runs, much finer and more obscure, to inner margin before anal angle ; 

 between this and the black hindmargin the wing is dead white, the veins from 

 subcostal to 4 also white ; fringe black. 



Himlwinq : with costal and hindmargins black ; all the veins black ; the 

 intervals between just before margin whitish. 



Underside the same, bnt duller. 



Head, thorax, and abdomen black; cheeks white; a white spot behind 

 antennae ; a white dorsal stripe on abdomen ; basal half of patagia orange. 



Expanse of wings : 48 mm. 



1 c?, 1 ? , from Chiriqui, Panama. 



10. Ephialtias aperta spec. nov. 



Forcwlng : brown-black ; a yellow streak from below costa beyond middle to 

 vein 1 at anal angle, its outer edge slightly bulged outwards below vein 5, broader 

 and deeper in ? than in c? ; fringe concolorous. 



HiniUcinij : yellow, with broad brown-black borders, except along the short 

 inner margin, and, as in forewing, broader and deeper yellow in ?. 



Underside dark brown ; the yellow paler. 



Head and thorax like wings ; the abdomen duller, beneath with slight blue 

 reflections. 



Expanse of wings : d", 37 mm. ; ? , 40 mm. 



1 i from Cajon, C'uzco, Octolier 191)0, ttjpt' ; 1 ? from Cuzco, Peru, April I'JOl ; 

 1 ? from Ynngas de la Paz, Bolivia, September 1899 (Garlepp). 



IT. Ephialtias dorsispilota spec. nov. 



Forewing: deep brown-black, with a uiirrow slightly curved lutcous yellow 

 band, with its edges indented at the veins, from below three-fifths of costa to vein 1 

 at anal angle ; fringe slightly paler. 



