BT «. J. TILLYARD. 306 



sweeping the lower branches of a Hoop-Pine {Arancaria Cmi- 

 )t,inf/haniil) with a large net. 



Tliis is the only species of the genus. 



Genus OxYBiELLA, n.g. (Plate xv., fig. 20). 



Antenme, nearly as long as forewing. Witu/s narrow lanceolate, 

 \ery sharply pointed. Foreivlng with four radial sectors, all 

 simple except the most distal; inner gradate series present, and 

 arranged close under, and nearly parallel to R: outer series not 

 regularly formed; no middle series; costal space very narrow at 

 base, then somewhat broadened; recurrent costal veinlet present, 

 but very weakly formed. llitidwhiij with no true Cu,; Cu,,j 

 rathei' weak and curved; a single rather long and oblique false 

 origin to Rs; Rs with four branches; jugal process very pro 

 minent. Hind fihuH broadened, blade-like. 



Genotype, 0. bridwelli, n.sp. 



This genus is most closely allied to Megalomiita, from which it 

 differs by the narrower and more pointed wings, and the absence 

 of the middle gradate series in the forewing. 



lU. OXYBIELLA BRIDWELLl, n.sp. (Plate XV., fig. 20). 

 Tdffd Ifiuith 4 "8, anlfumti b'f>, J'orfiviny 8, expanse 17 '5 mm. ' 

 Head pale brownish; eijes black; anteitnai long and slender, 

 basal joint swollen, pale yellowish-brown, rest brownish with 

 darker annulations. T h o r a x : profhorax large, divided into 

 three by two fine transverse furrows, brownish. Pterofhorax 

 broad, brownish. Legs : femora brown, tibise testaceous, just 

 touched with rose-pink, tarsi testaceous with black claws. A h- 

 domen dark brown, apex rounded; no visible appendages. 

 Wings : /ureicing semi-transparent bi'own, with a clear whitish 

 streak running longitudinally through distal three-fifths of wing 

 to tip, a less distinct and more irregular white streak belo^- it 

 in region between M, and Cu,; also a subtriangular whitish area 

 between Cu.j and lA. All these white areas bordered irregularly 

 with black blotches; a number of smaller black spots along R. 

 Venation of forewing brownish, except branches of R and M, 

 which are rose-coloured. Hindwiiu) hyaline, shaded with brown 

 lightly on costa, pterostigma, and hindmargin. 



