MICROLEPIDOPTERA OF PHILIPPINE ISLANDS 195 



Male genitalia: Tegiimen entirely membranous, indefinite. Vin- 

 culum moderate, top prominent and rounded. Valva robust, thick, 

 costa sclerotized and forming a broad blade, cucullus rounded with 

 two small angular prominences ventrally; saccidus broad, ending in 

 a sclerotized, furcate process, with upper point long and curved. 

 Upper edge of anellus wdth a deep W-shaped excision. Aedeagus 

 slender, sinuate, coecum abruptly dilated. Cornuti, a series of short 

 spines and a patch of dentations. 



Material examined: Luzon, Los Bafios, IX. 1922 (Dr. M. Koxas). 

 "Ace. No. Le 93, Coll of Agr., Univ., P.I.," 1 cf , holotype, genit. 

 slide 5163 (USNAI). Probably nearest to /. mesochorda Meyrick, 

 from Assam. 



Imma macrochorda regmophora, new subspecies 



Figure 669 



Male, 25 mm. Head pale grey fuscous, face whitish fuscous. 

 Antenna with scape whitish fuscous but appearing darker in certain 

 lights, flagellum dark fuscous above, yello^dsh below; bipectinated, 

 pectinations 3. Palpus light fuscous grey, somewhat darker towards 

 apex, median segment towards base below pale ochreous, exceeding 

 base of antenna. Thorax light purple fuscous, a whitish ill-defined 

 transverse band below apex. Abdomen purple fuscous, venter 

 whitish ochreous. 



Forewing oblong, dilated, broadest at 5/6; costa rather curved at 

 base, less so before apex, apex rounded, termen gently rounded, little 

 obUque. Veins 7 and 8 stalked, 8 to termen just below apex. Dark 

 fuscous ^^'ith moderate purple hue; costa, dorsum, and terminal third 

 not reaching cell suffused deeper fuscous; a whitish transverse fascia 

 from distinctly beyond middle of costa to before 2/3 of dorsum, 

 narrow, gently dilated on costa, slightly u-regidarly undulate, on vein 

 11 shghtly outwards-obhque, tolerably straight to fold, very slightly 

 outwards convex below this, hardly dilated again on dorsum. Cilia 

 dark fuscous (imperfect). 



Hindwing dark blackish fuscous, not paler towards base, whitish 

 along costa from base to well before apex. Cilia dark fuscous 

 (damaged) . 



Male genitalia: Similar to those of the nominate form, but Avith the 

 prong at the end of the saccidus somewhat less distinctly furcate. 

 (The vinculum and the bases of the valvae are damaged). 



Material examined: Mindanao, Lanao, plains, Kolambugan, 

 10.VL1914 (A.E. Wileman), 1 d", holotype, genit. slide 5682. 



In spite of a slightly different position and shape of the transverse 

 fascia and the very slight differences of the genitalia, this form should 

 be regarded as a subspecies of /. macrochorda, from Luzon. 



