GELKCHIAD^. 



127 



fuscous, sometimes partially suftused carmine-])ink, sometimes 

 mixed ochreous-whitish in disc; dark fuscous dots towards base 

 near costa 'and dorsum, and near dorsum at i ; a small suftused 

 dark fuscous spot on or near costa at ^ ; stigmata suffused, dark 

 fuscous or blackisli, sometimes nearlj'^ obsolete, plical obliquely 

 before first discal ; posteriorly four or five ocbreous-whitisli lines 

 converging to apical projection, one running along its lower edge ; 

 a black subapical dot preceded by a silvery dot : cilia pale brownish, 

 above apex three converging dark fuscous lines, on termen beneath 

 apex a reddish-tinged basal patch becoming silvery posteriorly and 

 edged by blackish-grey line. Hindwings grey, lighter anteriorly; 

 cilia pale ochreous-grey. 



Assam, Khasis, June to September ; nine specimens. 



^SEMNOSTOMA, n. g. 



Head with appressed scales; ocelli small, posterior; tongue 

 developed. Antennce |, in S simple or moderately ciliated, basal 

 joint very elongate, slender, without pecten. Labial palpi very 

 long, recurved, second joint thickened with scales roughly expanded 

 at apex above and forming a rough projecting apical tuft beneath, 

 terminal joint longer than second, slender, acute. Maxillary palpi 

 very short, filiform, appressed to tongue. Posterior tibise clothed 

 with rough hairs above, Eorewings 2 from towards angle, 7 absent, 

 8 and 9 short-stalked, 11 from middle. Hindwings 1, narrow 

 trapezoidal, apex acutely produced, termen sinuate, cilia 2-3; 

 2 remote, 3 and 4 nearly approximated from angle, 5 somewhat 

 approximated, 6 aud 7 stalked. 



Type leKCochalca Meyr. This interesting form belongs to the 

 natural group of Thiotricha, Thyrsostovia, Hierangela, hUopliantis, 

 and Poh/Jiymno ; it is nearest Thiotricha, differing by the tufted 

 l)alpi and approximated (not connate) veins 3 and 4 of liindwings. 



Semnostoma lencochalca, n. sp. 



c^ . 14 mm. Head white. Palpi white, basal | of second joint 

 dark yellowish-fuscous, anterior edge of terminal joint black. 

 Thorax brassy-yellow sometimes mixed with fuscous, outer edge of 

 l>atagia and two subdorsal lines white. Abdomen grey, anal tuft 

 brassy-whitish. Forewings very narrow, slightly widest near base, 

 apex forming a slender caudate projection, termen beneath this 

 obli(juely rounded ; dark fuscous, variably marked white and brassj-- 

 yellow, especially a number of irregular confluent markings 

 occupying dorsal area beneath fold, and a dark blotch on costa 

 at ^ more or less outlined by irregular markings, but all very 

 variable; three or four white marks posteriorly converging to a 

 small blacl. .subapical spot edged anteriorly and above with silvery : 

 cilia light grey, above apex three converging dark fuscous lines 

 separated by whitish, on termen beneath apex a yellow-fuscous 

 patch becoming leaden-metallic posteriorly edged by a blackish- 

 grey line. Hindwings and cilia light grey. 



Assam, Khasis, June, September ; three specimens, 



