230 U.S. NATIONAL MUSEUM BULLETEST 257 



Paranthrene Hiibner, 1820 

 Key to the Philippine Species of Paranthrene 



1. Forewing metallic green, opaque P. poecilocephala, new species 



Forewing for the greater part hyaline .... P. heterodesma, new species 



Paranthrene heterodesma, new species 



Figures 327, 339, 715-717 



Male, 27 mm. Head with vertex anthracite color, face white with 

 a large grey spot on forehead, orbits white, collar above yellow. 

 Antenna pale purple becoming deep metal blue. Palpus rather long, 

 subascending, bright yellow, basal segment marked with black 

 laterally, median laterally black except towards base, terminal 

 segment black. Thorax (rubbed) bluish purple, marked Anth bright 

 yellow; patagium with a lateral spot; tegida with inner edge (apparent- 

 ly) yellow, apical tufts mixed with yellow; a yellow spot above base 

 of wing; posterior edge of mesothorax yellow; metathorax wdth large, 

 fluffy white lateral tufts. Legs purple black, marked with bright 

 yellow; anterior coxa edged with yellow, this edge broadly crossing 

 over beyond middle; other coxae tipped with pale yellow; anterior 

 tarsus orange; median tibia with an oblique median band, top and 

 spurs yellow; posterior tibia yellowish in center internally, hairs 

 above mixed in middle of tibia with yellow, apex and spurs yellow; 

 median and posterior tarsi with yellow spots on edges of segments 

 above. Abdomen purple black posteriorly, edges of segments except 

 of the first, narrowly edged \vith yellow; anal tuft large, flattened and 

 bilobed, black, edged with white laterally; valvae clothed with pale 

 orange hairs. 



Forewing narrow, rather pointed. Costa as far as cell and vein 9 

 forming a piu'plish-black streak u-ith a trace of olive gloss; lower 

 edge of cell narrowly, dorsum more widely streaked with this color, 

 the two streaks becoming thicker posteriorly and converging beyond 

 cell to tornus; discoidal with an oblique broad didl black band; veins 

 beyond this band narrowly purple black. Wing membrane hyaline 

 pale yellow, with brilliant milky-lilac, iridescent reflections in certain 

 lights, terminal area from termen midway toward cell rather thinly 

 suffused with light brownish purple. Cilia rather light fuscous with a 

 purple gloss. 



Hindwing hyaline pale yellow, with the same but less strong re- 

 flections, a rather narrow brown-piu-ple marginal band along costa and 

 termen, on dorsum dilated so as to fill out cell la; discoidal vein 

 outwards oblique, thicker, piu'ple black. Cilia fuscous piu'plish. 



Female, 3G mm. Head as in male, but face white, pale yellow in 

 center, an irregular dark grey spot on forehead; palpus shaped as in 



