Acomeryx castanea Bothschild. (Kurokumo-suzume) 
By K. Nagano. 
Forewings violet-grey, varied with dark brown; an imperfect 
subbasal band preceding and following by paler lines; a bifurcated 
belt; many irregular waved stripes from costa to dorsum; a curved 
belt from middle of costa and connecting with submarginal band 
towards inner angle. Hindwings purplish or reddish brown, termen 
dark brown; a subterminal band dark brown. Espanse 74-85 mm. 
Body violet-brown. 
Honsiu, Yezo. 5-8. Larva green, yellow dotted; dorsal line 
indistinct; subdorsal line pale yellow, with above posterior purple; 
on under side of 3-4 seg. a lunate process, purplish-brown below 
and yellow above; on 4-10 seg. a series of pale yellow oblique 
lateral stripes; horn pale ochrous, with pale brown dots: on Vitis 
vinifera, Cissus japonica, ete.; 6-8, 9° 

