_Hab._ India, Sumatra, Malacca, Borneo, Celebes.

5. XYLOCOPA NOBILIS. _X._ nigra, pube nigra induta; abdominis basi pube
flava, apice lateritio.

_Female._ Length 11 lines. Black; a narrow line of pale fulvous
pubescence on the margin of the thorax in front, a patch of the same
colour on each side of the metathorax, and the basal segment of the
abdomen covered above with similar pubescence; the apical margin of the
third and fourth segments, and the fifth and six entirely, covered with
bright brick-red pubescence; the wings black, with coppery iridescence.

_Hab._ Celebes.

Fam. SOCIALES.

1. APIS ZONATA. _A._ nigra, thoracis lateribus dense ochraceo
pubescentibus; alis fumatis; abdomine nitido, segmentis secundo tertio
quartoque basi niveo pubescentibus.

_Worker._ Length 8--8-1/2 lines. Black; the head and thorax opake, the
abdomen shining; the clypeus smooth and shining, the flagellum
rufo-piceous beneath; the anterior margin of the labrum narrowly, and
the apex of the mandibles, ferruginous; the face with a little fine
short cinereous pubescence above the insertion of the antennae; the
vertex with long black pubescence; the eyes covered with short black
pubescence. Thorax: the sides with ochraceous pubescence; wings smoky,
the superior pair darkest at their anterior margin beyond the stigma.
Abdomen: a snow-white band at the basal margin of the second, third, and
fourth segments, the bands continued beneath, but narrower.

_Hab._ Celebes, Philippine Islands.

Specimens of this species denuded of their white bands would approach
the _A. unicolor_ of Latreille; but that insect is described as having
the anterior wings black; in the present species both pairs are of the
same smoky colour, not approaching black.

Fam. MUTILLIDAE.

Gen. MUTILLA.

1. Mutilla sexmaculata, _Swed. Nov. Act. Holm._ viii. 286. 44. [Symbol:
female]. Mutilla fuscipennis, _Fabr. Syst. Piez._ 436. 35. [Symbol:
male].

_Hab._ India (Punjaub, &c.), China, Java, Celebes.

2. Mutilla unifasciata, _Smith_, _Cat. Hym._ pt. iii. p. 38.

_Hab._ India, Celebes.

3. Mutilla rufogastra, _St. Farg. Hym._ iii. 629. 51. [Symbol: male].

_Hab._ India, Celebes.

4. MUTILLA VOLATILIS. _M._ nigra, rude punctata et pubescens; capite
abdomineque nitidis, alis fusco-hyalinis.

_Male._ Length 5-6 lines. Black. Head and thorax very coarsely
punctured; head and disk of the thorax punctured; the metathorax opake,
with a central abbreviated cha