188 Mr. F. Smith's descriptions 
contracted towards the marginal; in all other respects it 
exactly corresponds with British specimens of P. niger. 
Hob. — Hiogo. 
5. Pompilus hilunatus. 
Male. Length 8^ lines. Black, with the wings fuscous, 
and two pale yellow, lunate, spots at the base of the third 
segment of the abdomen. Head : the anterior margin of 
the clypeus truncate ; the mandibles ferruginous towards 
their apex, with the tips black ; the flagellum incrassate, 
tapering to a point at the apex, and fulvous beneath ; 
a very narrow yellow line behind the eyes, and a broader 
one at the inner orbits of the eyes, narrowest towards the 
clypeus. The posterior margin of the prothorax slightly 
angulated ; the metathorax truncate, the truncation sub- 
rugose ; the legs have the spines, spurs, and claws black ; 
the entire insect has a changeable fulvous pile, observable 
only in certain lights. 
Hah. — Hakodadi. 
C^- — 6. Pompilus atrox. \ 
Pompilus atro3', Dahlb. Hym. Europ. i. 63; Cresson, 
Trans. Amer. Ent. Soc. i. 98, 31, ^ $. 
Hab. — Hakodadi, Hiogo, N. America. 
C- ^- 7. Pompilus exortivus. ^ 
Female. Length 11 — 12-^ lines. Head and thorax 
yelloAv, abdomen black. Head reddish-yellow; antennro 
paler ; the clypeus rounded at the sides, truncate in front ; 
the mandibles black at their tips. Thorax: reddish- 
yellow ; the prothorax paler ; the mesothorax with a 
lateral, and an abbreviated central ferruginous stripe ; the 
metathorax with a little yellow pubescence, and a trans- 
verse convex margin at its apex ; the wings fulvo-flavous, 
Avith a narrowish, dark, defined, apical border ; the coxjb, 
trochanters and basal portion of the femora black; the 
knees, tibiae and tarsi reddish-yelloAV ; the apical joint of 
the anterior tarsi, and the three apical joints of the other 
pairs, black. The basal margin of the second segment of 
the abdomen more or less yellow, the apical segment also 
yellow. 
Hab. — Hiogo, Hakodadi, India, and North China. 
8. Pompilus Erebus. ^^ 
Female. Length 5h lines. Black, with hyaline wings 
bordered with dark fuscous at their apical margins, the 
nervures black. Head : a narrow pale line behind the 
