Heterocera frutn Costa Rica. 195 



gvey above vein 3. Hind, wings white, semihyaline, iri- 

 descent ; the apex and outer margin narrowly suffused with 

 fuscous. 



Expanse 32 mm. 



Hah. Juan Vinas. 



Eucereon venosa, sp. n. 



Body fuscous ; irons whitish ; two orange spots on head 

 behind ; an orange lateral streak below tegulse ; an orange 

 streak on patagia; basal half of venter white; white streaks 

 on legs. Fore wings whitish ; the veins and streak in cell 

 and submedian interspace broadly grey, except on a large 

 round white spot beyond the cell; basal half of costal margin 

 and inner margin tinged with orange ; a large darker grey 

 suffusion at end of cell and beyond the white spot, this 

 narrowing and forming an indistinct subterminal line. 

 Secondaries whitish fuscous at base becoming darker on 

 outer margin. 



Expanse 23 mm. 



Hub. Juan Vinas. 



Eucereon tenellulum, sp. n. 



? . Palpi, head, collar, and thorax fuscous grey. Legs 

 fuscous grey streaked with white ; two ochreous spots on 

 head ; an ochreous streak on patagia.- Abdomen fuscous 

 black; the subdorsal basal tufts light brown; the anus 

 ochreous; the first three segments of venter white. Fore 

 wings greyish ; antemedial pale ochreous streaks on costal 

 and subcostal veins, and two in cell separated by a long 

 blackish streak, also below median at base, at end of median 

 and commencement of veins 3, 4, and 5, longer streaks above 

 and below submedian; a medial darker shade from costa into 

 cell ; a broad postmedial shade, irregular, cut by veins and 

 blackish below vein 2, this followed by a whitish shade 

 broadest at costa to vein 5 ; a subterminal dark shade 

 widest at costa and at tornus ; the outer margin whitish with 

 large terminal dark spots, except veins 2 and 3. Hind wings 

 whitish, the outer margin broadly fuscous. 



Expanse 33 mm. 



Hab. Juan Vinas. 



Hyaleucerea morosa, sp. n. 



$ . Body dull greyish black ; the abdomen dorsally on 

 terminal half deep blue-black ; head behind and a spot 



13* 



