248 [Decemtier 



HYMENOPSYCHE. nov. gen. 

 Head small; compared with (Ecetlcus it is less exserted, more sunk 

 in the prothoracic parts, which latter are more prominent and elevatei 

 than in its ally. Oral structure obsolete. Abdomen, exceeding the 

 secondaries by half or nearly half its length, stout. The corporal 

 parts in their entirety are clothed with upright, loose, furry squamma- 

 tion ; tarsi, naked, unguiculate. Wings, vitreous, or nearly so, very 

 sparsely covered with scales within the internal margins of either pair; 

 nervures and costa with scattered scales. Primaries, broad; costa, 

 straight; external margin, roundedly oblique; internal margin, short, 

 the angle rounded. Costal nervure, simple, joining the costa before 

 the apex. Sub-costal nervure, approximate and parallel with costal, 

 throwing off two nervules to costa, which these join beyond the end of 

 the costal nervure. A third is thrown off in a straight line to apex, 

 before which it is furcate. A fourth nervule arises near the point from 

 whence the third is thrown off and runs somewhat depressedly to ex- 

 ternal margin. Fifth springs from the discal cross-vein, well removed 

 from the fourth. Discal cell large, sub-triangular, traversed longitudi- 

 nally by a distinct median fold, or thickening of the membrane. A 

 second, lower fold, springs from the m. nervure and is shortly continued 

 to the cross-vein, approximate to the point of origin of the first m. nervule. 

 The cell is closed by a thickening of the membrane, not by a true ner- 

 vure, since from the origin of the fifth s. c. to that of the first m. the 

 cross-vein is obsolete. Median nervure, geminate from its base to the 

 discal cell. First and second m. nervules, thrown off neir toijether and 

 divaricating to the margin. Third, thrice farther removed from second, 

 than second from first. First m. nervule, furcate before the margin. 

 Sub-median nervure, prominently sinuate and angulated at the point of 

 its greatest distance from internal margin, thence running obliquely 

 downwards to the margin which it joins at internal angle. Seconda- 

 ries, reduced; external margin, hardly rounded, nearly straight, exserted 

 before anal angle; the wing is well developed towards internal margin, 

 which is folded downwards. Costal nervure, arcuate, strong;, forming: 

 the upper margin of a large enclosed discal cell. Nervules extremely 

 stout. This cell is traversed by a strong fold emanating from the cos- 

 tal nervure just beyond the base, and by a median fold similarly ema- 

 nating from the m. nervure. Median nervure. strong, throwing off fii-st. 

 second and third short m. nervules; third, a little farther removed from 

 second, than second from first, and also longer. Sub-median and internal 

 nervures, simple, independent, running closely together at base, sepa- 



