Heterocerafrom Costa Rica. 177 



segment ; last two segments black with small blue spots ; 

 three triangular black lateral spots, partly irrorated with 

 blue; underneath black. Coxee and legs red, the latter 

 outwardly streaked with black ; tarsi red. Wings hyaline, 

 the veins and margins black. Fore wings : the apex more 

 broadly black ; a narrow black spot on discocellular. 



Expanse 38 mm. 



Hah. Guapiles. 



Cosmosoma colona, sp. n. 



Antenna black, irrorated with white at tips. Body black: 

 frons, tegulse, and patagia shaded with dark metallic blue. 

 Abdomen with transverse dark blue lines interrupted dorsally ; 

 the last two segments vermilion-red ; a lateral white spot 

 on first segment; white spots at base of mid and hind coxae. 

 Legs streaked with dark blue. Wings hyaline, tiie veins 

 and margins black. Fore wings : the apex broadly black; 

 a black streak on discocellular. Hind wings : the inner 

 margin broadly black. 



Expanse 33 mm. 



Bab. Sixola. 



Cosmosoma angustimargo, sp. n. 



Antennae, head, collar, thorax, and last two segments of 

 abdomen black ; abdomen otherwise bright yellow ; frons 

 laterally white ; a white spot laterally behind eyes ; a few 

 white scales on vertex. Legs dark brown ; fore coxae streaked 

 with white. Wings hyaline, the veins and margins narrowly 

 black, widening at apices. Fore wing : the discocellular 

 angled, finely black ; a white spot at base, followed by a 

 similar white spot. 



Expanse, ^ 29 mm. 



Expanse, ? 37 mm. 



Hub. Juan Vinas. 



Cosmosoma impudtca, sp. n. 



AntennEe, pectus, legs, palpi, and head black ; two white 

 spots on frons. Collar, thorax, and abdomen bright yellow. 

 Wings hyaline, the veins and margins black. Fore wings: 

 the base yellow ; an inwardly angled black spot on disco- 

 cellular ; the terminal band wider at apex and at tornus. 

 Hind wing : the inner margin and apex more broadly 

 black. 



Expanse 37 ram. 



Hab. Juan Vinas, El Sitio. 

 Ann. & Mag. N. Hist. Ser. 8. Vol vii. 12 



