HETEROCERA OF SIKHIM AND BHUTAN, 33 



296. //. tenebrosa, Moore. 

 Sikhim. I have obtained this through my collectors in September ; 

 I have only seen the male. 



297. H, basalis, Moore. 

 Sikhim and Bhutan, 7,000 feet. This is not an uncommon species in 

 July at light. (Occurs also in May at low elevations, I believe. — H. .7. E.) 

 298. H. nigribasis, Hmpsn. 

 Sikhim. The only specimen I have obtained is now in the British 

 Museiun collection ; the type is in Mr. Knyvett's collection. 



300a. H. trichostricha, Hmpsn., Journ. Bo. N. H. Soc, Vol. XI, 



No. 2, p. 283. (Plate I, Figs. 16 and 16a.) 

 Sikhim, 1,800 feet. I obtained two specimens of this, one of which 

 was taken in December; the type specimen was, I think, taken in 

 October by me and is in the British Museum. It belongs to a separate 

 section of the genus. 



Sir George Hampson's sectional divisions on the form of the antennae 

 of the female should, I think, be again sub-divided thus — 



Section I. — Female with antennas pectinate (this sex only being 

 available for study). 



H. pallida, Butl. 

 Section II. — Female with antennae ciliate. 



(a) Male loith antennce pectinate for two-thirds, terminal third 



serrate; branches thick and short loith minute tufts oj cilia 

 at extremities. 



H. tenebrosa, Moore. 



(b) Male loith antennce blpectinate for two-thirds, terminal third 



serrate ; branches slender loithout terminal tufts. 

 H. basalis, Moore. 

 H, nigrtbasis, Hmpsn. 

 Section III. — Forewing much broader ; antennae of male bipectinato, 

 with branches long and reaching almost to the tij:). 

 H. trichostricha, Hmpsn. 

 Genus Lophopteryx, Steph. 

 301. L. saturata, Wlk. 

 Sikhim and Bhutan, 2,500 to 10,000 feet. The specimen which I 

 took in September at 2,5<)0 feet at Fagoo at light was probably a 

 straggler, its proper range is from -IjOOO feet upwards. It occurs in 

 5 



