e sides of the metathorax and
base of the segments of the abdomen. The vertex emarginate behind, the
eyes very large, their inner orbits emarginate, reaching high on the
sides of the head nearly to the margin of the vertex; the clypeus
emarginate in front, the labrum produced. Thorax: the prothorax
subelongate, narrowed anteriorly; the wings subhyaline, their apex
clouded; the intermediate and posterior tibiae with a double row of
spines; all the tarsi simple; the calcaria stout and elongate. Abdomen
shining, with the margins of the segments slightly depressed.

_Hab._ Aru.

Subgen. AGENIA, _Schioedte_.

1. Agenia blanda, _Guer. Voy. Coq. Zool._ pt. 2. ii. p. 260.

_Hab._ Celebes; India; Singapore; Malacca; Borneo; Key Island.

2. AGENIA CALLISTO. _A._ nigra, pilis sericeis vestita; facie thoraceque
subtus pube argentato-alba dense: vestitis; alis fasciis duabus
angustis.

_Female._ Length 8 lines. Black; the face, clypeus, and cheeks with a
dense silvery-white pile; the tips of the mandibles obscurely
ferruginous, the palpi black. Thorax with a brilliant silvery-white pile
on the sides, beneath, and on the coxae; the metathorax transversely
rugose; the wings hyaline; the anterior pair with a narrow fuscous
fascia at the apex of the externo-medial cell, and a second rather
broader at the base of the marginal cell, which does not quite cross the
wing; the apex of the wing fuscous. Abdomen petiolated, smooth and
shining, with a beautiful glossy pile, which is most dense at the sides;
the apical segment longitudinally subcarinated in the middle above.

_Hab._ Aru.

3. AGENIA JUCUNDA. _A._ nitida nigra; facie metathorace abdomineque pube
sericea vestitis; antennis, pedibus, abdominisque marginibus apicalibus
ferrugineis; alis hyalinis.

_Female._ Length 5-1/2 lines. Black; head, pro- and mesothorax, as well
as the scutellum, glassy-smooth and shining; the face covered with
silvery-white pile; the antennae, tips of the mandibles, and the legs
ferruginous; the palpi elongate and pale rufo-testaceous. Thorax: the
wings hyaline and iridescent, the nervures very slender and pale
rufo-testaceous, the stigma fuscous; the metathorax rounded behind,
transversely rugose, and covered with silvery-white pile. Abdomen
petiolated; the apical margins of the second and following segments
ferruginous, the apical segment entirely so; the ferruginous band on
each segment produced in the middle into an angular shape; on the
abdomen