27. Laphria alternans, _Wied. Auss. Zweifl._ i. 511. 20.

Singapore. Inhabits also Java.

28. LAPHRIA ORCUS, n. s., fœm. Nigra, nigro-hirsuta, scutello

nigro-cyaneo, abdomine pedibusque nigro-purpureis, alis

nigricantibus areolarum discis pallidioribus, halteribus albidis.

_Female._ Black, with black hairs and bristles. Face slightly convex.

Mystax with numerous black bristles, extending over the whole

surface. Scutellum dark blue. Abdomen and legs dark purple, the

latter with whitish hairs on the coxæ. Wings blackish; disks of

several of the areolets much paler; veins black. Halteres whitish.

Length of the body 8 lines; of the wings 14 lines.

Malacca.

29. Laphria aurifacies, _Macq. Dipt. Exot. Suppl._ iii. 22. 33. pl. 2.

f. 5.

Singapore and Malacca. Inhabits also the Moluccas.

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