Hymenoptera Orientalis. 265 



B. Clypeus porret in $. 

 Cerciris orientalis, Smith, (PL X., f. 14, a, b). 



The largest of the oriental species. In the only example 

 I have seen the ocelli are in a black patch ; and the sternum 

 is also black. The posterior ocelli are separated from the 

 eyes by fully the length of the second and third joints 

 united ; and from each other by the length of the fourth. 

 Trigonal area broad, coarsely aciculate. Petiole broader 

 than long. Pygidial area narrowed a little at base and apex ; 

 the apex rounded ; the hair-fringe dense pale fulvous ; 

 incision in hypopygium reaching near to the middle ; there 

 is a tuft of hairs on the apex of the segment at the sides. 

 The second cubital cellule forms almost a semi-circle ; and 

 receives the recurrent nervure near the middle. 



Cerceris nebulosa, sp. nov. (PL X., f. 15, a t b.) 



Eyes slightly diverging beneath. Ocelli hardly forming 

 a triangle ; the posterior separated from the eyes by fully 

 the length of the third antennal joint, and by the length of 

 the fourth from each other. Clypeus flat, the middle at the 

 apex turned outwardly, widely semi-circularly incised and 

 separated from the lateral pieces by projecting beyond 

 them. Head closely rugosely punctured ; the cheeks and 

 lateral margin of clypeus densely covered with silvery white 

 hair. Mesonotum closely and finely longitudinally rugosely 

 punctured ; the pleurae coarsely rugose ; trigonal area 

 finely rugose. Abdomen twice the length of the thorax, and 

 narrower than it ; the petiole not much broader than long ; 

 the punctuation of the segments not very strong ; the 

 pygidial area closely rugose, hardly narrowed at the base ; 

 the apex transverse : the incision on hypopygium longer 

 than broad ; rounded at the base, dilated at the apex. The 

 third joint of antennae longer and thinner than the fourth. 

 The cheeks, clypeus, orbits broadly above the base of the 

 antennae ; a spot behind the eyes near the top, a band on 



