138 FAMILY OEYSSIM. 



touching mesonotum. Fourth segment large, without 

 a blotch ; first extending well down the sides. 



The radial nervure springs from the middle of the 

 stigma, and does not reach the end of the wing. The 

 second cubital cellule is shorter than third, and 

 receives one recurrent nervure ; of which there is only 

 one. The second cubital cellule receives also the 

 basal nervure, which is joined to the transverse 

 median. Of the discoidal cellules only the third is 

 present. Lanceolate cellule petiolate. Hind wings 

 with no middle cellules. 



First abdominal segment as long as the fourth body- 

 segment, and, like it, closely punctured ; second seg- 

 ment a little, and the succeeding somewhat shorter 

 than that. 



Beneath the first segment is as large as it is above ; 

 the second small, not half the size of the third ; that 

 and fifth subequal ; fourth a little longer ; the sixth 

 raised in the centre into a keel, which is sharp at the 

 apex and projects into the segment itself. Probably 

 this has something to do with the ovipositor. 



I am only able to make out seven abdominal segments 

 above in the ? . In the <? there are eight beneath, 

 but only seven above ; the last ventral is as long as the 

 seventh, and broader and rounder at the apex. In the 

 ? it is largely developed. On the inner side of both 

 pieces (for it is divided as usual in two) there is a 

 well-developed keel; out from this it is hollowed, 

 there being also a blunt keel on the opposite side of 

 this. The apex is deeply and widely incised ; on the 

 inner side of the hypopygium, and at the end of the 

 keel, is a small, somewhat triangular piece, which 

 represents, I believe, the missing eighth segment. It 

 is between these two pieces that the ovipositor is ex- 

 serted. 



The sheath of the ovipositor is horny, rather 

 narrow, hollow, the two pieces forming a closed tube ; 

 the lateral plate is broader; a little above the sheath 

 it curves round, and becomes dilated towards the 



