1. Halpe knyvetti.Correction H. sikkima. The upper cellspot is smaller than spot 3.
1a. Antennal club above with a pale yellow ring below the apiculus .
3a. UnH without white band.
5a. UnH without purple gloss.
5b Upper cellspot as large as spot 3.
Only two species.
5. FW 15mm. Rounder wings cilia reddish UnH unmarked.... H. kumara
6. Larger FW 17mm cilia greyer. UnH patchyies (interneural spots) well-marked.
Correction:FW upper cellspot smaller than discal spot 3. Key 7 a. Halpe sikkima.
Compare fieldshot of the male from Chiang Mai in website below. http://yutaka.it-n.jp/hes/91300001.html