ACOSMERYX. 



289 



Genus ACOSMERYX Boisduval. (Fig. 74). 



Boisduval, 1875, p. 214 ; Roths. & Jord., 1903, p. 526 ; id., 1907, 

 p. 100 ; Jordan, 1911, p. 251. 



Genotype : anceus (Stoll). 



Imago. — <$$. Medium-sized moths, upperside brown and 

 grey, the markings forming a tesselated pattern ; underside 

 tawny. " Genal process anguliform, curving backwards, 



Fig. 74. — Acosmeryx Boisd. Genitalia. 



A, A. naga (Moore), harpe ; B, penis-sheath. C, A. anceus (Stoll), 

 harpe ; D, penis-sheath, right and left sides ; E, $ vaginal plate. 

 F, A. socrates (Boisd.), ° vaginal plate. G, A. sericeus (Walk.), 10th 

 sternite, ventral view ; H, harpe ; I, penis-sheath. J, A. omissa 

 Roths. & Jord., 10th sternite, ventral view ; K, harpe ; L, penis- 

 sheath. 



nearly reaching tip of pilifer. Palpus large, rounded in side- 

 view. Antenna setiform, slender, gradually thinning ap*cad, 

 hook long, gradually curved ; end-segment very long, fili- 

 form, rough-scaled, penultimate one longer than vertically 

 broad. No eyelashes. Spines of abdomen numerous, the 

 VOL. v, XT 



