f the third tinged with purple; wings
subfuscous, with their base hyaline. The head and thorax coarsely and
closely punctured, the abdomen finely so; the tarsi with the claws
unidentate.

_Hab._ Celebes.

Genus CHRYSIS, _Linn._

1. CHRYSIS PURPUREA. _C._ laete purpurea, capite, thorace abdominisque
basi rugosis punctatis, segmentis abdominis secundo et tertio delicatule
punctatis, apice quadridentato.

Length 3 lines. Bright purple; the head, thorax, and base of the abdomen
strongly and coarsely punctured, the rest of the abdomen finely
punctured; the disk of the thorax and apical margins of the segments of
the abdomen reflecting bright tints of green; the wings subhyaline, the
nervures dark fuscous; the apical margin of the third segment of the
abdomen with four teeth, the two central ones approximating, separated
by a deep notch, the lateral teeth more distant, separated from the
others by a wide emargination.

_Hab._ Celebes.

2. CHRYSIS INSULARIS. _C._ nigro-purpurea, violaceo et viridi lavata;
capite, thorace abdominisque basi rude punctatis.

Length 5 lines. Dark purple, with violet and green reflections; the
face, legs, and thorax beneath, green; wings slightly fuscous, and
iridescent; the head and thorax closely and coarsely punctured; the base
of the abdomen roughly punctured, the two following segments much more
finely so; the apical segment armed with six teeth, the outer ones
subacute.

_Hab._ Celebes.

3. CHRYSIS SUMPTUOSA. _C._ fortiter punctata, metallico-viridis auro
lavata; thoracis disco, abdominis segmentis secundo et tertio basi
purpureis; segmento apicali margine integro.

Length 3-1/4 lines. Golden-green; the thorax at the sides and
posteriorly with bright coppery effulgence; an oblong purple spot on the
disk of the thorax; the metathorax and its lateral teeth vivid green,
the vertex and prothorax splashed with gold. Abdomen: the basal segment
bright green, with a bright coppery or golden effulgence at the sides;
the second segment purple at the base, coppery at the apex, and with a
suffusion of green between these tints; the third segment is similarly
coloured, with the apical margin entire; the insect closely and strongly
punctured throughout.

_Hab._ Celebes.

Description of a new Genus of Crustacea, of the Family Pinnotheridae; in
which the fifth pair of legs are reduced to an almost imperceptible
rudiment. By THOMAS BELL, Esq., Pres. L. S.

[Read June 3rd, 1858.]