198 U.S. NATIONAL MUSEUM BULLETIN 257 



Imma pyragra, new species 



Figures 302, 672 



Male, 18 mm. Head dark fuscous, face with a large glossy yellow- 

 ish-white spot. Antenna dark fuscous (partly missing). Palpi 

 rather long, diverging at base, curved inwards, so that terminal 

 segments overlap and a resemblence of a pair of tongs is created; 

 basal segment rather long, over one-half of median, thickened with 

 dense scales, median segment rather long, thickened in the same way, 

 curved inwards, terminal segment very short, smooth, subacute, 

 pointing mesiad; dark fuscous, median segment externally with a 

 purple iridescence in certain lights, olive above, light ochreous in- 

 wardly. Thorax dark fuscous. Abdomen dark fuscous, paler 

 toward base, venter tinged oHve. Posterior tibiae smooth. 



Forewing elongate-suboval, moderately dUated, costa little curved 

 at extremities, apex rounded, termen rounded, almost vertical. 

 Dark fuscous with a very faint purpHsh tinge. Markings pale 

 yellow. A narrow, irregular zigzag line from middle of costa to 

 3/5 of dorsum, upper and lower fourths more distinct, oblique, median 

 haK more slender, with two posterior curves, upper regular, to end 

 of cell, lower less distinct and less regular; a rather bright yellow 

 oblique pointed mark from costa before apex, continued as a narrow, 

 more or less interrupted terminal yellow hne, forming small, acute 

 dentations anteriorly on veins. Cilia dark fuscous, basal third almost 

 blackish, median third paler, grey. 



Hind wing dark fuscous, slightly paler, less purple tinged; a slender 

 whitish marginal mark on costa before apex. Cilia fuscous with a 

 pale basal line and a suffused blackish subbasal band. 



Male genitalia: Tegumen weak, depressed, hexagonal. Vinculum 

 much larger, rounded below. Valva acutely pointed, sacculus hairy 

 and broad, with a peculiar truncate prominence at base; harpe, a 

 moderately upwards-curved hook; cucuUus densely haired. Anellus 

 lobes long, clavate and slender. Aedeagus with a dUated and rounded 

 base, cornuti, one sheath of fine scobinations (extruded in mount) 

 and two patches of short spinules. Intersegmental membrane wdth 

 two pointed processes (bases of coremata, hairs removed). 



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

 genit. sHde 5164 (USNM). 



Apparently a primitive form. The peculiar palpi are very similar 

 to those of /. cyclostoma Meyrick from Assam and Tenasserim, with 

 the male genitalia of the same type. 



Imma tyrocnista INIeyrick, 1906 



Figures 294, 310-311, 673 



Imma tyrocnista Meyrick, 1906, Trans. Roy. Ent. Soc. London, p. 199 

 (cf9, Andaman Is.); 1914, in Wytsman, Genera Insectorum, fasc. 164, 



