clypeus, at its base, is an
oblique yellow spot, and anteriorly it is roughly punctured; the
mandibles roughened at their base, their apical half smooth, shining,
and ferruginous, with their apex black. Thorax subopake, very closely
punctured, and slightly shining; the metathorax coarsely longitudinally
rugose-striate; the postscutellum yellow; wings subhyaline and
iridescent, the nervures fusco-ferruginous; a dark fuscous cloud
occupies the marginal cell. Abdomen smooth and shining, with a slightly
interrupted fascia a little before the apical margin of the basal
segment; the second segment has a fascia at its apical margin; both are
yellowish white; the first is gradually widened towards the sides of the
segment, the second abruptly widened, with the angle of the widened
portion pointed inwards; beneath the abdomen is glossy, with the basal
segment closely punctured and subopake; the margins of abdominal
segments slightly constricted.

_Hab._ Key Island.

Gen. TRYPOXYLON, _Latr._

1. TRYPOXYLON EXIMIUM. _T._ nigrum; clypeo argentato-pubescente;
abdominis segmentis secundo tertio quartoque basi rubris; alis
hyalinis.

_Female._ Length 8-1/2 lines. Black, smooth, and shining; the head and
thorax very delicately punctured; the face and clypeus below the
insertion of the antennae densely covered with silvery-white pubescence;
the anterior margin of the clypeus rounded and much produced, with a
slight curving upwards at its margin; the mandibles yellow, with their
apex ferruginous; the palpi pale testaceous; the inner orbits of the
eyes very deeply notched. Thorax: the metathorax, the sides, and beneath
with a thin silvery-white pubescence, most dense on the former; the
metathorax not distinctly enclosed at its base, but with two shallow
impressed lines, which mark the form of the usual enclosed space; a
central longitudinal channel extends from its base to the apex, slightly
subinterrupted in the middle; the wings hyaline and iridescent, the
nervures dark fuscous; the anterior and intermediate tibiae in front,
their tarsi, the apical joints of the posterior pair, and the base of
the tibiae very pale ferruginous; the claw-joint of the intermediate and
posterior tarsi fuscous above; the calcaria pale testaceous. Abdomen,
the second, third, and base of the fourth segment more or less
ferruginous; the apex of the basal petiolated joint ferruginous beneath.

_Hab._ Aru and Key Island.

Gen. CRABRO, _Fabr._

1. CRABR