cosstjs. 305 



given oft separately ; antenna? 



simple in $ 2. Duomitus, p. 307. 



b 3 . Hind wing with veins 4 and 5 

 from a point. 

 a 4 . Palpi minute ; antennae with 

 proximal half bipectinated in 



both sexes 3. Azygophleps, p. 309. 



6 4 . Palpi with 3rd joint large. 

 Hind wing with veins 6 and 

 7 stalked ; antennas of $ 



bipectinated to tips 6. Eremocosstjs, p. 313. 



b 2 . Palpi absent 5. Phragmat^ecia, p. 312. 



b. Hind wing with a bar between veins 



7 and 8 4. Zeuzera, p. 310. 



Genus COSSTJS. 



Cossus, Fabr. Ent. Syst. iii, pt. ii, p. 3 (1794). 



Brachylia, Feld. Eeis. Nov. Lep. Atl. pi. 82, fig. 7, Erk. p. 2 (1867). 



Type, C. ligniperda, Fabr., from Europe. 



Range. Universally distributed. 



Palpi slight and flattened in front of face ; antennae of male with 

 the branches short, of female simple ; mid tibiae with one, hind tibiae 

 with two pairs of minute spurs. 



Fore wing with vein 11 given off from the subcostal nervure. 

 Hind wing with vein 8 free from the base ; the wings broad ; the 

 veinlets in cell with a short fork. 



Sect. I. Fore wing with vein 6 from angle of cell ; the 

 antennae of male bipectinate to tip. 



651. Cossus acronyctoides, Moore, P. Z. S. 1879, p. 411, pi. 34, fig. 4 



■C. $ S. no. 1584. 

 Cossus cashmirensis, Moore, Lep. Atk. p. 86 ; C. 8f S. no. 1583. 



cJ . Head, thorax, and abdomen dark brown. Fore wing brown, 

 the outer half evenly striated with fine lines over its whole surface. 

 Hind wing with faint reticulations. 



The form cashmirensis has some of the striae of the fore wing 

 coalescing into somewhat prominent lines, the best marked being- 

 one across end of cell, one beyond the cell from veins 6 to 3, and 

 one from the costa before the apex, but these are somewhat 

 variable. 



$ . Greyer ; the base of fore wing fuscous. 



Hob. Kashmir ; Ganjam ; Bombay ; Mhow ; Nilgiris. Exp, 

 36-53 millim. 



652. Cossus nigromaculatus, n. sp. 



5 . Head, thorax, and abdomen blackish brown. Fore wing with 

 the inner margin deeply angled near the base ; colour brown, 

 greyish towards the costa ; a black blotch on the costa near the base ; 



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