Htterocera from Dutch Stio Guinea. 63 



which is placer! a rounded black spot divided by a grey dash; 

 a subtertninai line, slightly creuulate ; a mesial longitudina 

 line, thicker than the others, running from the base along 

 losver edge of cell and vein 4 to outer margin; reniform 

 small, bright ochreous. Hind wing pale cinnamon-brown. 



Underside. — Fore wing rufous-brown, paler at base and 

 inner margin. Hind wing ochreous, dusted with rufous ; a 

 thick brown post-discal line, strongly curved at nervure 5. 



Antennae and palpi rufous-brown ; thorax cinnamon- 

 brown ; abdomen greyish ochreous, dusted below with 

 rufous ; legs cinnamon-brown, the posterior ones ochreous 

 on the inside. 



Length ol: fore wing 21 mm. 



Hah. Arfak Mtns., Angi Lakes, 6000 feet, March. 1 ? . 



Lasioceros dentiJinea, sp. n. 

 (PI. IL fig. 6.) 



The genus Lasioceros was described by Mr. Bethune- 

 Baker in Nov. Zool. vol. xi. p. 380 (190i), from a single 

 specimen from the Area River, British New Guinea. 



As the species we now describe differs in certain particulars 

 from Baker's diagnosis of the genus, we considered it 

 necessary to examine the type in the Tring Museum. 

 Mr. L. B. Prout has very kindly undertaken to do this, 

 with the result that we have to amend the original diagnosis. 



The eyes are glabrous. The antennse have the lower surface 

 evenly ciliated to the tip. The femora are somewhat hairy. 

 The hind wing has vein 8 approximating to 7 and not 

 anastomosing. 



L. dentilinea diverges from the generic structure as seen 

 in aroa, B.-B.,and will constitute a new section of the genus. 

 As it is in secondary sexual characters that dentilinea differs 

 from aroa we do not feel justified in giving this a separate 

 generic distinction. The new section of Lasioceros will be 

 constituted by the following structure seen in ($ dentilinea. 



The antennee with upper surface smoothly scaled, lower 

 surface without concavity, pilose or thickly ciliate, with 

 longer hairs on the outside. Hind tibiae bearing a thick 

 comb of hair. Underside of wings with much hairy scaling. 

 $ . Upperside. — Fore wing greyish ochreous, paler in the 

 cell, with an apico-costal white suffusion which is also 

 present on the costa at a third from base ; intervening space 

 filled in by a somewhat quadrate blackish patch from costa 

 to vein 3, but not well-marked below costa ; a curved black 

 mark on discocellular, and below it a rounded dark spot ; a 



