132 Journal New York Entomological Society, [Voi. iv. 



Cosmosoma lucia, sp. nov. 



Body black above with a subdorsal row of metallic blue spots from the head to 

 the anal segement. Underneath, thorax and legs red. Wings hyaline margined 

 with black, widely at the apices ; veins black, especially the discocellulars on the 

 primaries. Expanse, 36 mm. 



Habitat: St. Lucia, B. W. I. 



Cosmosoma durca, sp. nov. 



Body black with a subdorsal and a lateral row of metallic green spots. Wings 

 hyaline. The primaries with the base and margins broadly black, the costa narrowly 

 so ; a black spot at the end of the cell. Secondaries with the outer margin black. 

 Expanse, 31 mm. 



Habitat : Sao Paulo, S, E, Brazil, 



Cosmosoma dukinfieldia, sp. nov. 



Head black with a blue spot. Thorax black, a grayish spot on the patagia?. 

 Abdomen black shaded with metallic blue at the base and laterally. Wings hyaline. 

 Primaries with ttie base and outer margin broadly blackish brown ; the costal and 

 inner margins mottled pale fawn colour and black ; a broad black spot at the end of 

 the cell ; all the veins black. Secondaries with the outer margin black. Underneath 

 the thorax is spotted with metallic blue. Expanse, 42 mm. 



Habitat: Castro, Parana. 



Sansaptera, gen. nov. 



Antennae pectinated. Palpi porrect, second point long. Primaries long and 

 narrow, the outer margin very oblique, the inner angle rounded ; the submedian 

 vein very short. Secondaries very minute, almost imperceptible, with the anal angle 

 prolonged. 



Sansaptera cocho, sp. nov. 



Head black with two metallic pomts. Thorax black; two metallic blue spots on 

 the collar. Abdomen black with a subdorsal and a lateral row of metallic scales j 

 underneath white at the base. Primaries hyaline, veins and margins black, the 

 outer margin broadly so ; a black spot at the end of the cell ; the base black with 

 some metallic spots. Secondaries brownish black. Expanse, 29 mm. 



Habitat: Cavallo-cocho, Peruvian Amazons, 



Argyrceides sanguinea, sp, nov. 



Antenna black. Head black with white lines. Collar yellow. Thorax black j 

 a yellow line on patagi;e. Abdomen black at the base with a yellow spot ; the sec- 

 ond segment yellow ; otherwise crimson dorsally with three transverse black streaks ; 

 beneath and laterally black ; anal tuft black. Wings hyaline, finely margined with 

 black, Discocellulars more heavily black on the primaries. Expanse, 24 mm. 



Habitat: Castro, Parana. 

 Syntrichura brodea, sp. nov. 



Head black spotted with white. Body dorsally brilliant metallic green, the 



