ORNEODIDiE. 
539 
HEBDOMACTIS, n. g. 
Head with loosely appressed scales, collar forming a hood of 
long rough hairs projecting over crown ; ocelli posterior ; tongue 
imperceptible, scales rough round mouth. Antennae §, cf mode¬ 
rately ciliated, scape moderate, with dense anterior apical projection 
of scales. Labial palpi moderate, straight, porrected, second joint 
loosely scaled, terminal joint somewhat shorter, pointed. Maxillary 
palpi very short, loosely scaled, porrected. Anterior tibiae very 
short, r tarsi thrice as long, posterior tibiae shortly rough-scaled 
above, tarsi about as long. Forewings cleft from middle into six 
linear plumes, second cleft slightly deeper than others ; 2 from 
middle of cell, running to segment 6, 3 from | to segment 5, 4 and 
5 connate from angle to segments 4 and 3, 6 from near upper 
angle to segment 2, 7 to apex, 8-10 out of 7, 11 from near upper 
angle. Hindwings cleft from about ^ into seven linear plumes, 
first and third clefts rather deeper; 1 6 to segment 7, 1 a to sixth 
cleft, 2 absent, 3 from near middle to segment 6, 4 and 5 from 
angle to segments 5 and 4, 6 and 7 from upper angle to segments 
3 and 2, 8 to segment 1. 
This curious genus has all the facies of an Orneocles, but is 
obviously much more primitive in structure. In Triscaedecia veins 
9 and 10 of forewings, as well as 11, rise from cell before 7, as 
stated by Hampson ; I have verified this. 
Hebdomactis crystallodes, n. sp. 
c? • 14 mm. Head white mixed grey. Palpi dark grey, upper 
edge white. Antennal ciliations 1. Thorax white, tegulae mixed 
dark fuscous. Abdomen white, segments 1-3 suffused fuscous 
dorsally. Forewings snow-white; basal area as far as clefts 
suffused fuscous and dark fuscous, costa throughout with about 8 
irregular dark fuscous spots, on anterior half of costa pairs of white 
dots between these; a terminal patch of fuscous and dark fuscous 
suffusion on segments 1-4, darkest posteriorly, narrowest at apex 
and widest on segment 3, including two white dots on each seg¬ 
ment : cilia white, on terminal patch eoncolorous. Hindwings 
snow-white; basal area to clefts suffused fuscous ; a light greyish 
streak crossing wing at |, and a series of light greyish bars on 
segments towards apex ; cilia white, except on streak. 
British New Guinea, Biagi, Mambare R., 5000 feet ( Meelc ); 
1 ex. (Coll. Paravicini). 
HEXERETMIS, n. g. 
Head with short loosely appressed hairs ; ocelli far posterior ; 
tongue developed. Antennae -§, <5 lamellate-dentate, ciliated, 
scape moderate, stout, without pecten. Labial palpi long, second 
joint stout, swollen medially, porrected, rather thickened with 
appressed scales, terminal joint shorter than second, obliquely 
ascending, moderate, pointed. Maxillary palpi short, porrected, 
