of Aculeate Hymenoptera of Japan. 191 
longer black hairs. The mesothorax with scattered punc- 
tures and a deep longitudinal central channel; the scu- 
tellum irregularly longitudinally striated; the metatho- 
rax with a transverse rugose striation above, the sides 
covered with short griseous pubescence ; the wings sub- 
hyaline, the nervures nigro-piceous. The abdomen with 
a blue tinge in certain lights ; the legs covered with hoary 
pile. 
Male. This sex is more pubescent, and has the clypeus 
and sides of the face densely covered with silvery pile : 
the mesothorax is transversely coarsely rugulose ; the 
petiole, and a line down the first segment of the abdomen, 
black. 
Hab. — Hiogo. 
Genus PELOPiEUS, Latr. 
1. PelopcBUS Madraspatanus, Fabr. Syst. Piez. 203 ; 
Dahlb. Hym. Europ. i. 22. 
Hab. — Hiogo, Hakodadi, India, Celebes. 
— 2. Pelopceus Bengalensis, Dahlb. Hym. Eur. i. 433. 
Hab. — Hakodadi, Hiogo, China, Phil. Islands, Celebes, 
Borneo, Timor, India. 
3. Pelopceus deformis, Smith, Cat. Sphegidas, &c. 231. 
Hab. — Hakodadi, Shanghai. 
/c V. Genus Sphex, Fabr. 
1. Sphex argentata, Dahlb. Hym. Eur. i. 25. Sphex 
. argentifrons, St. Farg. Hym. iii. 337. 
Hob. — Hakodadi, Hiogo, India and Islands of the 
Archipelago, Africa and N. America. 
Genus Ampulex, Sauss. \/ 
1. Ampulex novarcB, Sauss. Voy. Novar. Hymenop. p. 44, $ . 
Hab. — Hakodadi, Hongkong. 
The female is coloured like the male, being entirely 
violaceous, with the posterior femora ferruginous; the 
head, viewed above, is quadrate ; the clypeus smooth, and 
acutely carinate, terminating in three prominent teeth at 
its apex ; it is shining and sparingly punctured, with the 
mandibles ferruginous at their apex. The prothorax 
smooth, compressed, with a longitudinal channel above, 
where it is slightly transversely strigose ; the mesothorax 
