of the PijraUdina of tJie European fauna. 441 



nally. Abdomen in ^ long, anal segment elongate, with large 

 dense exsertible genital tuft. Middle tibite in (J dilated, enclosing 

 tuft of hairs in groove; posterior tibiae with outer middle-spur one- 

 fifth to one-half of inner, outer end-spur one-half inner. Fore 

 wings with vein 7 closely approximated to 9 at base, 8 and 9 

 stalked, 10 closely approximated to 9 towards base. Hind wings 

 1| — 1^ ; veins o, 4, 5 approximated at base, 7 out of 6 near origin, 

 anastomosing with 8 to two-fifths. 



Allied to Omiodes ,- at present represented only by the 

 two following Siberian species. 

 ussurialis, Brem. 

 heterogenalis, Brem. 



3. Omiodes, Gn. 



Face somewhat rounded, oblique ; ocelli distinct ; tongue deve- 

 loped. Antennte three-fourths to five-sixths, in $ iihform, 

 ciliated {\ — 1|), basal joint sometimes with a slight projection of 

 scales in fropt. Labial palpi moderate, arched, ascending, second 

 joint with dense rough projecting scales beneath, terminal joint 

 very short, obtuse. Maxillary palpi moderate, porrected, filiform 

 or somewhat dilated with loose scales towards apex. Thorax in J^ 

 with patagia elongate, ending in an expansible pencil of long hair- 

 scales ; abdomen in 3' elongate, with dense exsertible genital tuft. 

 Posterior tibiae with outer spurs one-third to one-half of inner. 

 Fore wings with vein 7 approximated to 9 towards base, 8 and 9 

 stalked, 10 closely approximated to 9 towards base. Hind wings 

 over 1 ; veins 3, 4, 5 approximated at base, 7 out of 6 near origin, 

 anastomosing with 8 to one-third to two-fifths. 



A genus of rather limited size, of which the species 

 seem to be scattered rather indiscriminately through 

 the Indo-Malayan region, Pacific Islands, and Central 

 America ; in the Hawaiian Islands there is a locally 

 developed group of them. The two here given are 

 Indian species which range into Siberia. 



tristrialis, Brem. 



quadrimac'ukdis, Koll. 



4. Hymenia, Hb. 



Face rounded, oblique ; ocelli distinct ; tongue developed. An- 

 tennae two-thirds, in (^ filiform, ciliated {^ — -3), basal joint in ^ 

 with an erect apical spine or projection of scales on inner side, 

 stalk notched above basal joint. Labial palpi moderate, arched, 



