68 COPEOGNATHA FROM NORTHERN SARAWAK. 



Two specimens from Mt. Dulit, 3000 feet, January, by 

 lamp at night, coll. Dr. E. Mjoberg. It is not impossible 

 that they represent only a smaller, darker variety of the 

 foregoing species. 



Caecilius tenuicornls n. sp. (Plate 3, fig. 4). 



General colour dark brown (balsam slide ex alcohol). Legs 

 paler, brownish-yellow; fore tibiae very dark brown, nearly 

 black (darker than the body). Apical joint of maxillary palpi 

 brownish-black. Antennae scarcely half as thick as in 

 G. fuscopterus, very pale, the three basal joints yellow, the 

 following ones more greyish. First joint of hind tarsi with 

 18 ctenidia, second joint without such. Claws brownish- 

 black, the sharply pointed tip curved and yellow. Length of 

 hind tarsal joints : I 0.85 mm., II 0.12 mm. 



Colour of fore wiugs practically as in the European 

 C. fuscopterus, very dark brown, with hyaline length bands 

 along the fore and hind margin. The fore marginal band 

 reaching from base of pterostigma till halfway between the 

 ends of the last branch of radial sector and the first branch of 

 media ; this band not reaching the stem of radial sector which is 

 followed anteriorly by dark coloration ; interrupted by three 

 narrow, dark cross bands, viz., along the end of pterostigma 

 and along both branches of radial sector : all these three cross 

 bands continued from fore margin till the dark colour of 

 wing surface. Pterostigma yellowish. Medial vein followed 

 anteriorly by a curved, pale stripe in the neighbourhood of the 

 origin of its hind branch. The hind marginal hyaline band 

 following the anal vein, then the hind mai-gin, about as wide 

 as the areola postica, then narrowing to tip and reaching as 

 a very narrow stripe till the end of middle branch of medial 

 vein. Communication between radial sector and media in 

 one fore Aving extremely short, nearly a point only, in the 

 other one substituted by a very short cross vein. Branches 

 of radial sector some^^hat more perpendicular to the margin 

 than in C. fuscopterus, and more widely distant from tip of 

 Aving than in that of European species. Their common shaft 

 about one and a half times as long as the branches. Areola 

 postica (fig. 4) much smaller than in C. fuscopterus, hardly 

 wider than the distance of medial vein. 



Hind wings practically as in C. fuscopterus , but the fore 

 branch of radial sector almost perpendicular to the margin. 

 General colour dark gieyisli (but much paler than the fore 



