140 HYMENOPTERA. 
truncate, with a deep longitudinal impressed line in the middle ; 
the wings pale yellow, the nervures ferruginous, their apex with 
a dark fuscous border ; the tibiz ferruginous and set with stout 
acute spines; the tarsi fusco-ferruginous, thickly spmose. Ab- 
domen subsessile; beneath, the margins of the segments rufo- 
piceous. 
Specimens in fine condition are covered with grey sericeous 
pile, but it is usually obscure. 
Hab. Port Natal. 
111. Pompiuus FERUS. B.M. 
Female. Length 9 lmes.—Black: the head and thorax 
covered with long black pubescence ; the anterior margin of the 
clypeus rounded. Thorax: the wings nearly black, with a vivid 
purple iridescence ; the second submarginal cell oblong, receiving 
the first recurrent nervure near its apex; the third submarginal 
cell as long as the second, but broader at its apex, and narrowed 
towards the marginal cell; the anterior and intermediate tibiz 
and tarsi thickly spinose, the spmes short and acute; the poste- 
rior tibiz strongly serrated, the tarsi thickly spinose. 
Hab. Port Natal. 
112. PomMPiILUS MoROSUS. B.M. 
Female. Length 6 lines.—Black: the head obscure ferru- 
ginous, the antennz reddish-yellow beyond the three basal joints. 
The pro- and mesothorax, the tibiz and tarsi obscure ferrugi- 
nous ; the mesothorax has a central abbreviated black line, the 
metathorax smooth and convex, and the tibize and tarsi spose ; 
the wings yellow, with a broad fuscous border at their apex; the 
tegule ferruginous. Abdomen subsessile, its extreme apex rufo- 
piceous; the insect entirely covered with an obscure sericeous 
pile. 
This species resembles tibialis, but differs in having the meta- 
thorax convex, and also longer. 
Hab. Port Natal. 
113. PoMpPILUS OBSCURUS. B.M. 
Female. Length 10 lines—Black: the head and thorax 
clothed with short black pubescence, intermixed with long black 
hairs; the legs thickly spose, the posterior tibiz strongly ser- 
rate ; the wings very dark brown, with a brilliant metallic-blue 
iridescence ; the base of the abdomen smooth and shining, the 
following segments covered with obscure sericeous pile. 
Hab. Port Natal. 
