550 FROCEEDiyiiS OF THE NATlOXAL MUSEUM. vol. xxix. 



some .vhite below; coxeg, and streaks on underside of femora? and 

 fore tibiae white. Abdomen with dorsal whitish line and lateral series 

 of metallio spots blue at base and blue-green behind; the lirst six seg- 

 ments with broad ventral white stripe. Fore wing with a long narrow 

 whitish streak on costal edge; a basal spot, and a short streak on base 

 of vein 1 metallic blue: iiyaline streaks in cell and below it to angle; 

 ciliie white at apex and, parti}', at toriius. Hind wing with the cilia" 

 whitish toward tornus; the inner area white below. 



Female. — Frons metallic blue; cox» without white except at tips, 

 the fore coxte with metallic- blue patches- legs without white streaks; 

 antennge, shoulders, costal edge of fore wing, and inner area of under- 

 side of hind wing without white; abdomen with the ventral stripe 

 present (as in types), or very rarely obsolete, the stripe clouded 

 (usuall}^ slightly, as in types) by being irrorated with brown-black 

 scales; palpi with or without (in types with) white on front and the 

 white mixed with brown, the white usually (as in types) present as 

 a small streak; the front of palpi also with or without (in t3'pes with) 

 some metallic-blue scales toward outer end. 



Expanae. — 25-27 mm. 



Habitat. — Ciudad Bolivar and Suapure, Venezuela. 



Types. — Cat. No. 8429, U.S.N.M., and in collection of the author. 



In rare instances the metallic markings are blue-green, but the 

 metallic blue of ordinary specimens changes to blue-green in oblique 

 light. 



Allied to N. terminals Walker and N. Jeiicoielan Butler. 



NAPATA QUADRIMACULATA Moschler. 



Habitat. — Suapure, Venezuela. 



IXYLASIA KELLERI, new species. 



Male. — Head, thorax, and abdomen black: basal joint of palpi and 

 points behind eyes white; spots on teguke, shoulders, and patagia, 

 subdorsal points on mesothorax and dorsal point on hind margin of 

 metathoi-ax white and metallic blue; coxa? with white patches; al)do- 

 men with the tufts of hair brown and white; the dorsal surface with 

 white and blue point on first segment, the terminal segment and band 

 on preceding- segment scarlet; vmderneath with short lateral series and 

 longer sublateral series of white spots, the latter series followed by 

 white-mixed dark orange patches on last two segments; wings hyaline, 

 the veins and margins black. Fore wing with the base black, with two 

 basal bluish-white points, a broad discoidal black bar conjoined to the 

 costal fascia and extended and widened between veins 3 and 4, the ter- 

 minal band expanding toward apex and widened below vein 2, the 

 inner fascia rather broad and with a short metallic trreen streak on 



