Hymenoptera. 155 



hair. Thorax smooth and shining ; the mesonotum flat, its apex 

 flat and transverse ; there is a narrow furrow in the centre of the 

 metanotam. Basal 2 segments of abdomen longer than broad ; 

 the area on <he 2nd segment triangular, its greatest length more 

 than its width at the base ; it is sharply pointed, smooth, except 

 for a few irregular strias in the centre ; it is sun^ounded by a broad 

 border of stout striae ; the lateral part has a triangular band of 

 oblique, irregular striae at the apex. Suturiform articu ation 

 broad, deep, stoutly striated, beyond it the segment is irregularly 

 longitudinally striated ; the 3rd segment is closely, irregularly 

 striated, except at the sides and apex ; the 4th has a broad striated 

 band in the middle, the sides at the base and the apex being 

 smooth. Recurrent nervure received distinctly behind the trans- 

 verse cubital. Temples large, not obliquely narrowed, broadly 

 rounded behind. Thorax as long as the basal 3 abdom.inal seg- 

 ments, the abdomen being longish and of the width of the thorax. 

 Legs slender ; the front tarsi twice the length of the tibiae. 



Iphiaidax hicolor^ Be. 



Mr. O'Neil sends from Dunbrody a species which appears to 

 be the Bracon hicolor, Be. It agrees with the description, except 

 that it has got the hind tibiae from near the base and the hind 

 tarsi black, while from the description these are coloured like the 

 rest of the legs. In the figure, however, (pi. 43, f. 3) these are 

 certainly shown darker coloured than the rest of the legs. 



Acanthobracon nigromaculata, sp. nov. 



Ferruginous ; the centre of vertex broadly, the mark slightly 

 narrowed behind, — the mark continued to the antennae, from 

 which it is expanded to the eyes, mandibles, antennae, the greater 

 part of the pronotum, a mark on the sides of middle lobe of 

 mesonotum, a larger, broader one on the basal two-thirds of lateral 

 lobes and a mark behind the upper part of the eyes, black; wings 

 fuscous, the costal cellule, the 1st cubital cellule and the part below 

 it, almost hyaline ; the nervures and stigma black. Female. 



Length 11, terebra 5 mm. 



Front and vertex smooth aod shining ; front depressed ; the 

 anterior ocellus in the depression ; in its centre is a keel which 

 becomes higher, almost spinose at the apex. Face irregularly 

 punctured, almost rugose; the clypeus finely rugose, raised, clearly 

 separated, rounded above. Pro- and mesothorax ; propleural 



