232 U.S. NATIONAL MUSEUM BULLETIN 2 57 



rods converging, but not dilated, in middle. Ostium bursae sup- 

 ported by two slender spindle-shaped sclerites, forming a V. CoUic- 

 uliun bulbose, inverted pear-shaped, spinulose, with a dark median 

 groove, below bulb a ring of larger spinules. Ductus bursae long and 

 narrow. Corpus bursae simple. 



Material examined: Luzon, Mt. Makiling (Baker), 1 cf , holotype, 

 genit. slide 5298, 1 9, allotype, genit. slide 5299 (USNM). 



Paranthrene poecilocephala, new species 



Figures 349, 718, 720 



Male, 27-29 mm. Head and face rounded prominent, silvery 

 white, a small scale tuft below base of each antenna, center of face 

 with a glossy large and round grey spot; vertex bright orange mixed 

 wiih black. Antenna thickened but not markedly clavate, fasciculate- 

 ciliated and pectinate, black. Palpus considerably pointed, median 

 segment dUated at base by roughish scales beneath; yellow, white 

 internally and towards base above, median segment mixed with 

 black laterally from well beyond base, terminal segment mixed vnth 

 black above; collar orange, white along eyes. Thorax polished 

 purplish black; tegulae large, edged with pinkish orange; two narrow, 

 submedian orange longitudinal streaks, dilated posteriorly; a large 

 yellow patch under the base of wmgs. Legs black, anterior with base 

 of femur pale yellow, tarsus yeUow orange; median leg, tibia with a 

 whitish, internal, subbasal, oblique spot and a white tuft at apex; 

 posterior leg white internally, tibia with a white submedian band 

 externally, spurs white or white-tipped. Abdomen black, with white 

 lateral hairs at base and narrow yeUow posterior segmental lines, 

 anal tuft flat, large; valvae whitish. 



Forewdng metallic indigo green, costa black as far as cell and vein 

 10; a light yellow transverse wedge-shaped spot at base, cell semihya- 

 line, a hyaline narrow and pointed field between basal half of cell 

 and vein lb; a dull black marginal narrow line around apex and along 

 termen. Cilia black bronze. 



Hindwing colorless hyaline, with a moderate black margin, an 

 ochreous grey, rather broad, complete band along discoidal vein, 

 lower edge of cell and basal third of vein 2 whitish, all other veins 

 black; vein 5 strong, submedian. Cilia black with a bronze gloss. 



Male genitalia: Rather similar to those of P. heterodesma. Te- 

 gumen stronger rounded and bulbous in middle above, subscaphium 

 narrower. Saccus more slender. Transtilla developed, with strong, 

 hooldike labides. Aneilus tube membranous, moderate. Valva 

 elongate-semioval, top more rounded, sacculus bristled as in hetero- 

 desma, but disc devoid of bristles, while costa bears simple fine bristles 

 arranged in a marginal broad band from apex to middle, and has 



