112 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.57. 



Bears the same relation to 0. Tiercyna Druce as C. melanotela 

 Dyar bears to 0. hercynacula Dyar. 



COSMOSOMA NASCA, new species. 



Male. — ^Antennae and body black; some metallic blue scaling on 

 frons and thorax; base of abdomen dorsally crimson, ventrally 

 white except on last three segments; red spots on shoulders; coxae 

 silvery white; palpi laterally streaked with v/hite; tarsi terminally 

 white. Wings hyaline white, the veins and margins finely black, 

 the latter expanding slightly at apices;. fore wings with discocellular 

 more heavily marked and some black at tornus. 



Expanse. — 21 mm. 



Habitat. — Cayuga, Guatemala. 



Type.— C&t. No. 22405, U.S.N.M. 



Veins 4 and 5 on forewings are shortly stalked. The tibia on 

 hind legs are nearly twice the length of tarsi with pau*ed spurs just 

 beyond middle. 



COSMOSOMA PURULHA, new species. 



Male. — Body black with patches of blue scales on frons, vertex, 

 thorax, and abdomen, forming on the latter a dorsal and double 

 lateral series of spots; patagia orange finely edged with black. 

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

 streak below costa to terminal black edge, a similar line on inner 

 margin expanding at tornus ; a thick black line on discocellular and 

 a black spot below it between veins 2 and 4. Hind wings: the ter- 

 minal border wider especially at apex. Wings below with orange 

 streaks on costal margins; the black spot below cell in forewings 

 containing an orange streak; the hind wings roughly scaled on apical 

 half of outer margin. 



Expanse. — 30 mm. 



HaUtat. — Purulha, Guatemala. 



Type.-^&t. No. 22406, U.S.N.M. 



Allied to C. proton Druce. 



COSMOSOMA VARICA, new species. 



Male.— He&d, collar, thorax, antenna, and legs fuscous brown. 

 Abdomen above light brown, almost white at base; terminal four 

 segments black; venter white. Wings hyaline, the veins black. 

 Forewings: base and termen fuscous brown; spots black; a spot 

 close to cell between veins 2 and 3; a large irregular spot on dis- 

 cocellular; termen expanding at tornus and much more so at apex, 

 being widest between veins 5 and 6, narrowest between veins 3 and 5. 

 Hind wings : outer margin narrowly fuscous brown, expanding very 

 slightly at apex and tornus. 



Expanse. — 35 mm. 



HaUtat. — ^Volcan de Santa Maria, Guatemala, at 5,500 feet. 



Type.— Cat. No. 22407, U.S.N.M. 



