ittering; antennae more
slender than is usual in this genus, and tapering to their apex, the
joints slightly subarcuate; the mandibles bidentate at their apex and
with a yellow spot at their base. Thorax: the posterior margin of the
prothorax, a spot beneath the wings, the tegulae, and the postscutellum
yellow; the anterior and intermediate tibiae ferruginous and more or less
dusky above, the posterior pair ferruginous beneath. Abdomen shining,
the margins of the segments deeply depressed; a small ovate spot on each
side of the first segment, the second and three following segments with
a narrow stripe on each side in the middle, yellow; the yellow markings
obscure; the apical segment coarsely rugose; beneath, the segments are
closely and strongly punctured.

_Hab._ Aru.

Gen. SCOLIA, _Fabr._

Division I. The anterior wings with two submarginal cells and two
recurrent nervures.

1. Scolia grossa, _Burm. Abh. Nat. Ges. Halle_, i. p. 23. (Tiphia
grossa, _Fabr. Syst. Piez._ p. 232. 4.)

_Hab._ Aru; Java.

The specimens of this species received from Aru are only 9 lines in
length; I have examined others from Celebes, Borneo, India, and Java,
showing every difference between 9 lines and 18 lines.

Division II. Anterior wings with two submarginal cells and one recurrent
nervure.

2. SCOLIA NITIDA. _S._ nitida, aterrima; alis aeneo et violaceo splendide
micantibus.

_Female._ Length 11 lines. Shining jet-black, the abdomen with prismatic
tints. The flagellum fusco-ferruginous beneath, the mandibles
ferruginous at their apex; the wings dark brown with a splendid lustre
of coppery and golden tints mixed with shades of violet. The head with a
few punctures behind the ocelli; the thorax with scattered punctures;
the metathorax finely but not closely punctured; the disk of the
mesothorax impunctate; the abdomen with fine scattered punctures; the
apical segment opake, rugose, and with its apical margin pale
testaceous; the abdomen beneath with strong distant punctures.

_Hab._ Aru.

3. SCOLIA FULGIDIPENNIS. _S._ nitida, nigra; abdomine prismatico, alis
fuscis viride et violaceo micantibus.

_Female._ Length 12-13 lines. Jet-black, shining; head very smooth, the
hinder margin of the vertex finely punctured, the face with a few fine
scattered punctures; the flagellum obscurely rufo-fuscous. Thorax finely
punctured, the disk of the mesothorax impunctate; wings dark brown with
a splendid green iridescence, with violet t