Hymenoptera Orient alls. 147 



I. Gastrosericus Wroughtoni, Sp. nov. 



Niger, albo pilosns ; tegidis, abdominis segmentis i — 2 

 apiceque tarsoriivi, rufis ; alts hyalinis. Long. 1 1 mm. 



Antennae as long as the thorax, densely covered with a 

 silvery pile ; the third and fourth joints subequal, dilated 

 at the apex ; the second one-third of the length of the 

 third. Head fully wider than the thorax ; the cheeks, face, 

 and clypeus densely covered with a silvery pubescence ; 

 the front and vertex much more sparsely. Eyes at the 

 top separated by fully the length of the second and third 

 joints united ; there is a shallow indistinct furrow in the 

 centre of the vertex ; ocelli surrounded by a deep furrow ; 

 hinder ocelli shining, curved, elongated ; vertex and front 

 coarsely aciculated. Apex of clypeus truncated ; mandi- 

 bles reddish, black at the apex. Thorax punctured, densely 

 covered with cinereous pubescence ; metanotum finely 

 rugose ; its apex perpendicular, almost truncated, but with 

 the sides rounded. Abdomen longer than the thorax, 

 shining, aciculated, the segments broadly banded with a 

 silvery pubescence ; pygidial area bare, except at the apex, 

 which bears long depressed fulvous hair ; the basal portion 

 with scattered punctures. Legs densely covered with silvery 

 pubescence, especially thick on the tibise and tarsi ; the 

 anterior tibiae and tarsi are for the greater part reddish, as 

 are all the knees and spurs ; the spines are whitish. At 

 the top the cubital cellule is somewhat longer than the 

 space bounded by the recurrent nervures, which are received 

 in the basal fourth of the cellule ; the second transverse 

 cubital cellule is curved to near the top, when it becomes 

 angled and straight. 



2. Gastrosericus Rothneyi, sp. nov. 

 Niger, argenteo pilosns, punctatns ; geniculis lineaque 

 tarsomm, albis ; alts hyalinis, apice fere fnmatis ; nervis 

 fuscis ; tegulis albis. Long. 7 mm. 



