1865.] 



b 



composed of about 24 joints, basal joint long and cylindric, 2nd short. 

 Fig. 3. 3rd as long as the first, remaining joints gra- 



dually shorter ; immediately behind the base 

 of the antenna? a deep longitudinal excavation, 

 with the lateral margins earinated, and also 

 with a carina down its middle ; ocelli arranged 

 in a triangle on the vertex and at the head of 

 the frontal excavation, in which the lower 

 ocellus is situated; mandibles small, palpi slen- 

 der. Thorax short and thick, collar not elon- 

 gate ; mesothorax slightly gibbous, abrupt in 

 front, the lobes prominent; scutellum convex; metathorax (Fig. 3, b) 

 short, very abruptly truncate behind, the abdomen, which is short, ovate 

 and depressed, is inserted near the base just on the top of the declivity 

 (Fig. 3, c), making the distance between the insertion of the abdomen 

 and the posterior coxae greater than in Aulacus. Wings moderate, 

 stigma rather large and triangular, emaroinate beneath near the base ; 

 marginal cell long and lanceolate ; three submarginal cells, the second 

 much smaller than the first, subijuadrate, the third extending to the tip 

 of the wing, the single recurrent nervure received at the junction be- 

 tween the first and second submarginal cells, Legs moderate, the pos- 

 terior pair longest and stoutest, the coxae robust, the posterior pair not 

 elongate; femora moderately stout; four posterior tibiae each with two 

 short, stout, subequal apical spurs; tarsal claws apparently simple, with 

 large pulvilli. Ovipositor longer than the body. 



This rema'-kable genus resembles, at first sight, a small species of 

 AuJactm, with a large head, but on a closer examination the characters 

 are found to be very dissimilar. It seems to form a very close con- 

 necting link between the Ichneumones adsciti and the Evaniidse; from 

 the former it differs by the mode of the insertion of the abdomen, and 

 from the latter by the multiarticulate antennae ; it, therefore, does not 

 belong strictly to either family, but on account of the peduncle of the 

 abdomen being inserted at a considerable elevation upon the metatho- 

 rax. — a character which seems to be coufined to Evaniidse, — I place it, 

 for the present, in that family. To Capitonim Brulle, it seems closely 

 allied, in having the third discoidal cell not closed, and in the general 

 shape of the body, but the prothorax does not form a long neck, and 

 the antennae have double the number of joints. 



Anlacodes nigriventris, n. sp. 



Rufous, shining : abdomen black, the extreme base pale yellowish; antennas 

 and legs, except base, dusky; wings hyaline. 



