(418 ) 



Acco gen. nov. 



Palpi miunte, upturned ; proboscis present ; antennae of (S with cilia, ? 

 almost simple ; midtibiae with one pair of spurs, hindtibiae hairy, with two pairs 

 of long spurs ; cell extremely short, not one-sixth the length of the wing. 



Neuration : Primary, vein 2 from near end of cell, 3 and 4 stalked on a 

 moderate stalk, 5 and G absent, 7, 8, 9, and 11 stalked, iD absent ; inner margin 

 near base produced into a slight lobe with a tuft of long hairs. Secondary with 

 costa produced near the base into a slight lobe, veins 2 and 3 stalked on a short 

 stalk close to the base, 4 and o absent, 6 and 7 coincident in the male, on a very 

 long stalk in the female, 8 short, free. 



Type : A. bicolora spec. nov. 



132. Acco bicolora spec. nov. (PI. V. f. 21). 



(?. Head and jialpi blackisli ; anterior half of thorax wliite, jiosterior blackish; 

 abdomen dark grey. 



Primary dark grey, darkest beyond the cell ; costa, apical area, and terminal 

 area to near tornus pure white, defining the dark area by a curve. Secondary 

 uniform dark grey. 



? . Similar to the male, but the dark area extends nearly halfway up the 

 termen from the tornus, and there is a whitish stripe from beyond the middle of 

 the inner margin into the white area. 



Expanse : c? 18, ? 20 mm. 



Hab. Dinawa, August and February ; Aroa River (Tring Museum). 



Type in my collection. 



Pseudilema gen. nov. 



c?. Palpi minute, porrect ; antennae with bristles; midtibiae with one pair, 

 hindtibiae with two jiairs of spurs ; costa straight to end of cell, a sudden knobbed 

 2)rojection, then slightly excavated to near apex, which is depressed ; termen 

 obliquely rounded ; inner margin slightly excavated for the outer half. Secondary 

 with apex highly excised, giving the costa the apjiearance of a lobe. 



Neuration : Primary, vein Ic curved highly upwards and then suddenly 

 downwards to near tornus, connected by a bar with l/j beyond the middle, vein 2 

 from cell beyond the middle, bent suddenly downwards so as to touch Ic, thence 

 straight to the termen, 3 from near angle, 4 from the angle, both curved down- 

 wards towards the termen, 6, 7, 8, and 9 stalked from just beyond the cell, 6 bent 

 downwards, 9 bent upwards, 10 from cell curved uji to the costa, both 9 and 10 

 very short ; the cell is extremely narrow ibr two-thirds, the veins nearly touching, 

 when it suddenly and shortly expands. Secondary, vein 2 from well beyond the 

 middle of cell, 3 from angle, 4 and 5 absent, 6 from upper angle, bent up shortly 

 to costa, 8 coincident with 7 for nearly the half, then separating ; a tuft of hairs 

 below the cell in both wings, and a tuft in the cell of the secondaries. Both sexes 

 have an anal tuft. 



?. The shape of the {)rimary is normal, that of the secondary is practically 

 square. 



Neuration : Primary, vein 2 from beyond the centre, 3 from well before the 

 angle, 4 from the angle, (i bent down stalked with 7 from beyond tlie u])per angle, 

 connected by a bar with b to form an areole, 9, 10, 11 stalketl from 8 by a bar 



