Homoporus Vassiliefi, sp. nov.— ♀ — Length, 2 mm. Head and thorax bluish, finely, closely punctured, the face and the pleura with a greenish metallic lustre, the metapleura decidedly brassy; antennæ brown, the scap yellow; legs concolorous with the thorax, the hind coxæ with a metallic greenish fringe, the apices of all femora, all tibiæ and tarsi, except the last joint, yellow, the last joint dark fuscous; wings hyaline, the nervures brown, the stigmal vein two-thirds the length of the marginal, the postmarginal vein very nearly as long as the marginal; abdoment aeneous black, tinged with metalic green basally at the sides, ovate, somewhat pointed at apex, very little longer than the thorax.