thorax covered with a dense short ochraceous pubescence; the disk of the thorax thinly sprinkled with short black hairs; the posterior tibiæ obscurely ferruginous; the tarsi ferruginous; the legs covered with bright golden-yellow pubescence; wings subhyaline, the nervures ferruginous; the tegula yellow with a fuscous stain in the middle. Abdomen obscurely chalybeous, closely punctured, the two basal segments strongly so; the apical margins of the segments with smooth shining narrow blue fasciæ.

Male. Closely resembling the female, but with the legs black; the posterior femora incrassate, the tibiæ narrow at their base and broadly dilated at their apex, which, as well as the calcaria, are pale testaceous. This species closely resembles a species from North China, N. chalybeata, Westw. MS., from which it is readily distinguished by the form of the fourth ventral segment, which is notched in the middle, rounded, and then emarginate with the lateral angles rounded; in the species from China the margin is arched, and fringed with fulvous pubescence.

4. NOMIA HALIOTOIDES.

N. nigra, pube cinerea tecta, abdominis

segmentis intermediis pube alba fasciatis. Female. Length 4 lines. Black; head and thorax opake, and thinly clothed with cinereous pubescence, that on the disk of the thorax and margin of the scutellum slightly ochraceous. The flagellum fulvous beneath, the mandibles ferruginous at their apex; the tarsi ferruginous, wings hyaline, nervures fuscous, stigma testaceous. Abdomen shining, delicately punctured; the basal margins of the second, third, and fourth segments with a band of cinereous pubescence, attenuated in the middle.

Hab. Celebes.

Fam. DASYGASTRÆ.

1. MEGACHILE INCISA. M. nigra, rude et dense punctata, facie fulvo pubescente; alis fuscis, segmentis abdominis marginibus multo depressis.

Male. Length 5 lines. Black; closely and strongly punctured, the punctures confluent on the abdomen. The face clothed with fulvous pubescence. The tarsi obscurely rufo-piceous, the claws ferruginous; wings dark fuscous, their base hyaline. Abdomen: the apical margins of the segments smooth, impunctate, their basal margins very deeply depressed; a deep fovea at the tip of the apical segment; the head, thorax, and abdomen clothed beneath with short cinereous pubescence.

Hab. Celebes.

2. MEGACHILE FULVIFRONS. M. nigra, delicatule punctata; facie dense fulvo pubescente; thoracis lateribus abdomineque subtus fulvo pubescentibus; fasciis marginalibus abdominis fulvis.

Female. Length 7 lines. Black; head and thorax closely punctured, the abdomen delicately so and shining; the mandibles stout, with two acute teeth at their apex, shining and covered with oblong punctures; the face, sides of the thorax, and abdomen beneath, densely clothed with fulvous pubescence; the apical margins of the segments of the abdomen above with narrow fascia of short fulvous pubescence; the abdomen in certain lights has a metallic tinge.

The male is similarly clothed to the female, the margins of the segments are deeply depressed, and that of the apical segment slightly notched in the middle.

Hab. Celebes.

3. MEGACHILE TERMINALIS.

M. nigra, capite thoraceque dense. punctatis; abdomine pube nigra vestito; segmentis duobus apicalibus pube alba vestitis; alis fuscis.

Female. Length 9 lines. Black; the face with tufts of black pubescence above the insertion of the antennæ; mandibles very stout, with an acute tooth at their apex, the inner margin subdentate, and covered with fine cinereous pubescence. Thorax with black pubescence at the sides of the metathorax; the wings dark fuscous. Abdomen clothed with black pubescence; the fifth and sixth segments clothed with ochraceous pubescence above, that on the sixth nearly white.

Hab. Celebes.

This species resembles the M. ornata; but when viewed beneath, the different colour of the pollen-brush at once separates them.

Gen. CERATINA, Spin.

1. Ceratina viridis, Guér. Icon. Reg. Ann. 444. t. 73. f. 6.
Hab. India (Bengal, N. India), Ceylon, Celebes, China.

2. Ceratina hieroglyphica, Smith, Cat. Hym. Ins. ii. 226.
Hab. Northern India, Celebes, Philippine Islands, Hong Kong.

Fam. DENUDATE.

1. STELIS ABDOMINALIS. S. dense punctata, capite thoraceque nigris, abdomine ferrugineo; alis nigro-fuscis violaceo iridescentibus. Male. Length 5 lines. Head and thorax black, abdomen ferruginous; head and thorax strongly punctured, the scutellum very strongly so; the sides of the face and the anterior margin of the face fringed with white pubescence. The posterior margin of the scutellum rounded; wings dark brown with a violet iridescence. Abdomen ferruginous and closely punctured.

Hab. Celebes.

2. CŒLIOXYS FULVIFRONS.

C. nigra, rude punctata, facie pube fulva

vestita; alis fuscis cupreo iridescentibus.

Male. Length 6 lines. Black; the head and thorax with large con

fluent punctures; the face clothed with fulvous pubescence. Thorax: a stout tooth on each side of the scutellum at its base; wings dark brown with a coppery effulgence, subhyaline at their base; beneath clothed with short cinereous pubescence. Abdomen: elongate, conical; closely punctured, with the apical and basal margins of the segnients smooth; the apical segment with a tooth on each side at its base and four at its apex; beneath the margins of the segments fringed with pale pubescence; the apical margin of the fourth segment notched in the middle; the fifth entirely clothed with pale pubescence. Hab. Celebes.

Fam. SCOPULIPEDES.

Gen. ANTHOPHORA, Latr.

1. Anthophora zonata, Linn. Syst. Nat. i. 955. 19.

Hab. India, Ceylon, Malacca, Sumatra, Borneo, Philippine Islands, Hong Kong, Shanghai, Celebes.

Gen. XYLOCOPA, Latr.

1. Xylocopa fenestrata, Fabr. Syst. Piez. p. 339. 6. ♂.

Hab. India, Celebes.

2. Xylocopa æstuans, Linn. Syst. Nat. 961. 53. Hab. India, Java, Singapore, Celebes.

3. Xylocopa Dejeanii, St. Farg. Hym. ii. 209, 59. Hab. Java, Borneo, Sumatra, Celebes.

4. Xylocopa collaris, St. Farg. Hym. ii. 189. 26. 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.

1. APIS ZONATA.

Fam. SOCIALES.

A. nigra, thoracis lateribus dense ochraceo pu bescentibus; alis fumatis; abdomine nitido, segmentis secundo tertio quartoque basi niveo pubescentibus. Worker. Length 8-8 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 antennæ; 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. MUTILLIDE.

Gen. MUTILLA.

1. Mutilla sexmaculata, Swed. Nov. Act. Holm. viii. 286. 44. q. Mutilla fuscipennis, Fabr. Syst. Piez. 436. 35. ♂ .

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. ¿. 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 channel and covered with large shallow punctures; the eyes notched on their inner margin; wings fuscous and iridescent; the tegulæ smooth and shining. Abdomen shining and rather finely punctured; the basal segment narrow and campanulate; the margins of the segments thickly fringed with silvery-white hair; the cheeks, sides of the thorax, and beneath the legs and abdomen with scattered long silvery-white hairs. Hab. Celebes.

Fam. SCOLIADE, Leach.

Gen. SCOLIA, Fabr.

1. Scolia erratica, Smith, Cat. Hym. Ins. pt. iii. p. 88. 10. Scolia verticalis, Burm. Abh. Nat.-Ges. Halle, i. 37. 61. Hab. India, Sumatra, Celebes.

2. Scolia aurulenta, Smith, Cat. Hym. Ins. pt. iii. p. 102. 80. (nec Fabr Hab. Philippine Islands, Celebes.

3. Scolia fimbriata, Burm. Abh. Nat.-Ges. Halle, i. p. 32. 24. Hab. Java, Celebes.

4. Scolia dimidiata, Guér. Voy. Coq. Zool. ii. pt. 2. p. 248. Hab. Senegal, Celebes.

5. SCOLIA TERMINATA.

S. nigra, clypeo mandibulisque flavis, thorace flavo variegato, alis hyalinis, abdomine flavo quinque-fasciato, apicisque marginibus flavis.

Male. Length 5 lines. Black; the clypeus, labrum, and mandibles yellow; the former with a triangular black spot in the middle; the latter ferruginous at their apex. The posterior margin of the prothorax, the tegulæ, a transverse curved line on the scutellum, and a spot on the postscutellum yellow; the anterior and intermediate tarsi, tibiæ, and knees, and the posterior tibiæ outside, yellow; a black line on the intermediate tibiæ beneath, and the apical joints of the tarsi fuscous; wings hyaline, the nervures ferruginous. Abdomen brightly prismatic; the margins of all the segments with a narrow yellow fascia, those on the second and third segments terminating at the sides in a large rounded macula; the fascia very narrow or obliterated on the sixth segment; the fascia on the second and third segments continued beneath.

Hab. Celebes.

6. SCOLIA AGILIS. S. nigra, mandibulis clypeoque flavis, alis fulvohyalinis, abdomine prismatico flavo quadrifasciato.

Male. Length 8 lines. Black and punctured, with thin long griseous pubescence; the vertex, disk of the thorax, and the abdomen shining; the mandibles and clypeus yellow, the latter with a black bell-shaped spot in the middle; wings fulvo-hyaline, the nervures ferruginous ; the tibia with a yellow line outside. Abdomen beautifully prismatic; the first and three following segments with a yellow fascia on their apical margins, the second and two following much attenuated in the middle, or the fourth interrupted.

Hab. Celebes.

7. SCOLIA FULVIPENNIS. S. nigra, antennis capiteque supra basin antennarum rubris, alis fulvo-hyalinis.

Male. Length 7 lines. Black; the antennæ and the head above their insertion ferruginous, the scape black, the head coarsely punctured. Thorax: coarsely punctured; the mesothorax with an abbreviated deeply impressed line in the middle of its anterior margin; wings fulvo-hyaline, the nervures ferruginous; the apex of the wings slightly fuscous, the anterior pair with two submarginal cells and one recurrent nervure. Abdomen shining, punctured, and prismatic.

Hab. Celebes.

8. SCOLIA ALECTO. S. nigra, capite supra basin antennarum rubro; alis nigris violaceo micantibus.