CERTAIN BUTTERFLY GENERA — FIELD 117 



origin, the female genitalia are similar, and there is a great similarity 

 in habitus. These facts were taken as better reasons for associating 

 these two species with Piercolias than with Phulia, in spite of their 

 similarity to the latter in such structures as claws and the number of 

 radial veins. The num])er of radial veins, while usually regarded 

 as of generic importance, sometimes certainly amounts to less than 

 that. This is shown by the existence of two species in the subgenus 

 Infraphulia of Phulia, one having three radial veins, and a second, 

 very closely related species, having only two radial veins (the greatest 

 reduction of radials known for the family). 



Piercolias (JPierphuliii), new subgenus 



Type: Phulia nysiclla Rohev— Piercolias (Pierphulia) nysiella 

 (Rober). 



Differing from Piercolias {Piercolias) in the number of radial veins 

 of forewing, in length of tibia of foreleg, in uncus, subscaphium and 

 harpe, and in female genitalia as well as in the paronychium and claw. 



Venation: Figure 22. Forewing with three radial veins, R4 and 

 R5 having anastomosed with R3; Mj and M2 both stalked with base 

 of R3+4+5. Hindwing with Mj distinctly shorter than Cuj. 



Legs: Foreleg with tibia shorter than first tarsal subsegment. 

 Pai'onychium (fig. 30) greatly reduced, being about one-third to less 

 than one-half length of claw, tapering to a point, slightly constricted 

 beyond middle and with its width at base one-half its length. Claw 

 (fig. 30) similar to Phulia, abruptly directed downward with its long 

 axis nearly parallel to basal margin. Tooth iippjoximate to distal 

 portion of claw. 



Genitalia: Male (figs. 6, 14) with uncus short and slender, 

 shorter than length of tegumen; ventral opening for anal tube about 

 two-thirds length of entire uncus; subscaphium small and weak; 

 harpe broadly produced apically, not acuminate and without a clasper 

 flap or lobe on inner face. 



Female (fig. 39) with eighth tergite not developed in dorsal region, 

 forming two triangular lateral plates; eighth sternite with outer genital 

 plates large and reticulated; inner genital plate greatly reduced and 

 subtriangular in shape and slightly setulose, lacking a posterior finger- 

 like process. 



Species: 



1. Piercolias {Pier phulia) nysiella (Rciber), in Seitz, Die Gross-Schmetterlinge 



der Erde . . . , vol. 5, p. 98, pi. 28, fig. d6, 1909 (Phulia). 



2. Piercolias (Pierphulia) nysias (Weymer), w Weynier and Maassen, m Stiibel 



and Reiss, Reisen in Sud-Amerika . . . Lepidopteren . . . pp. 98, I2r), pi. 

 4, fig. 11, 1890 {Phulia). 



