18 Cameron, Hymenoptera Ovientalia. 



narrower at the bottom than at the top through the first 

 transverse cubital nervure being sharply, the second 

 slightly, oblique; the recurrent nervure is received in the 

 basal third of the cellule. Petiole shining, the apex 

 finely punctured, and with an elongated depression ; the 

 base broadly black; the rest of the abdomen shagreened. 



MESOSTENUS HIMALAYENSIS, Sp. 110V. 



Niger, albo-maculatiis ; pcdibns fidvis ; coxis anterioribus 

 albis, basi tibiariun tarsorumque posticorum late nigris ; 

 .alis hyalinis ; nervis fuscis. d. Long. 9 mm. 



Hob. Himalayas. 



Antennae as long as the body ; black ; the scape 

 beneath and a broad band beyond the middle, white. 

 Head shining ; the face closely punctured ; the front 

 obscurely striolated ; below the antennae, the oral region 

 except the apices of the mandibles, the orbits except 

 near the top of the eyes, white. Thorax black ; the 

 mesonotum closely punctured ; a broad line on the pro- 

 notum, tegulae, tubercles, a mark on the centre of the 

 mesonotum, scutellum, post-scutellum, three marks on 

 the median segment in a triangle, a mark at the base 

 of the mesopleura, a smaller one at the apex nearer 

 the breast, a somewhat triangular mark below the hind 

 wings, a large pear-shaped mark on the metapleura and 

 the greater part of the mesosternum, white. Median 

 segment with a gradually rounded slope, coarsely punc- 

 tured ; the basal white mark is longer and narrower 

 than the apical. The four front coxae and trochanters 

 white; the hinder red like the femora; the basal joint of 

 the trochanters blackish ; the apex of the second, the 

 third, and the fourth tarsal joints are white. Wings 

 hyaline, the areolet quadrangular ; the recurrent nervure 

 received at its apex. Abdomen black, shining, impunc- 

 tate ; all the segments broadly white at the base above 

 and beneath. 



