268 Mr. R. KE. Turner on Fossorial Hymenoptera. 
Subfamily Parrawrurz. 
Cerceris expulsa, sp. n. 
2. Nigra; abdomine rufo-ferrugineo; mandibulis basi, carina 
interantennali, macula parva utrinque pone oculos, tegulis macula 
parva, postscutello linea transversa utrinque, tergito primo fascia 
apicali, tibiisque extus flavis; alis fuscis; flagello brunneo- 
ferrugineo; clypeo apice bidentato; segmento mediano area 
basali basi oblique, apice transverse, striata; sternito secundo 
area basali elevata nulla; area pygidiali nigra, elongata, apice 
angustissime rotundata. 
do. Femine similis; clypeo fascia longitudinali flava; tegulis 
. immaculatis; postscutello omnino nigro; clypeo apice leviter 
emarginato; segmento mediano area basali oblique striata; 
sternito sexto angulis apicalibus spina longa armato; area 
pygidiali apice truncata. 
Long., 9 13, ¢ 11-13 mm. 
¢. Clypeus broad, rather sparsely punctured, produced 
just before the apex into two small tuberculate teeth, the 
space below the teeth forming a small deflexed triangle; a 
deep fovea at the inner angle of the lateral lobes of the 
clypeus. Face broad, the eyes strongly divergent towards 
the clypeus ; antennee inserted more than half as far again 
from the anterior ocellus as from the base of the clypeus. 
Head broader than the thorax, closely but not very deeply 
punctured ; posterior ocelli much further from the eyes than 
from each other. Head, thorax, and median segment clothed 
with silver pubescence, which is most noticeable on the 
clypeus, face, and pleuree ; the thorax and median segment 
rather coarsely punctured. Abdomen sparsely and finely 
punctured ; first tergite much broader than long ; pygidial 
area long and narrow, gradually narrowed from the base and 
very narrowly rounded at the apex. 
&. Clypeus subcarinate longitudinally in the middle from 
the apex to the middle; the apex very shallowly and rather 
widely emarginate, the angles of the emargination slightly 
produced. yes distinctly divergent towards the clypeus, 
but not as strongly as in the female; first tergite much 
broader than long; sixth sternite with a long spine on each 
side at the apical angles ; pygidial area parallel-sided, much 
longer than broad, truncate at the apex, rugose. 
Hab. Calcutta district (Rothney), ex coll. Cameron; 1 9, 
1236. ; 
This was identified by Cameron as C. vigilans, Sm., to 
which it bears a strong superficial resemblance; but the 
