63 ON TWO UNDESCRIBED GENERA AND THREE NEW SPECIES OF ICHNEUMONID^ FROM BORNEO. By p. Cameron. Hemiphatnus, gen. nov. Radius and cubitus almost united at the areolet, the only (the basal) transverse cubital nervure being not much longer than thick ; the recurrent nervure is received shortly beyond it ; the transverse median nervure is received behind the transverse basal. Transverse cubitus in hind wing broken near the top of the posterior third. Metanotum smooth, with one transverse keel near the base ; the spiracles longish oval. Basal two abdominal segments long and slender, the first more so than the second. Thorax about four times longer than wide, the parapsidal furrows deep ; the scutellum rounded, not raised above the mesonotum, head wider than the mesonotum, obliquely narrowed behind. Clypeus separated from the face, its apex bluntly rounded. Antennse long and slender, not ringed with white, the basal joints of the fiagellum long. Claws small. The type of this genus is a much more slender insect than the majority of the Mesostenini, especially as regards the abdo-men and the antennae. Characteristic also is the very smooth body, including the metanotum. Of the Malay genera, its nearest ally seems to be Lactolus, which, however, has the thorax striated, the antennae thicker, and the areolet is much larger and closed at the apex. Hemiphatnus nignpalpis, sp. n. Entirely smooth and shining, yellow ; the antennae, palpi, man-dibles, middle of front broadly, the occiput, except for a triangular spot (the narrowed end below) at the eyes, the pronotum except narrowly at the apex, a large triangular mark on the upper half of the pro pleurae, its narrowed end at the base, the mesonotum, the metanotum at the base behind the keel, the extreme base of the first abdominal segment, black ; the apical three-fourths of first, second abdominal segment, the basal half of the third, more than the basal half of the fourth, and the other segments above, brown. Wings hyaline, the stigma and apical nervures fuscous, the basal nervures black. ? . Length, 13 mm. ; terebra, 2 mm. Kuching, Borneo (John Hewitt, B.A.). Legs pale yellow ; the four anterior femora black behind, the apices of all the tibiae (almost the apical fourth), the extreme base of the posterior and the tarsi, black ; the hind femora brownish black ; the tibiae and tarsi shortly spinose. Hind coxae about four times longer than thick. The furrow on the lower part of the mesopleurae is roundly curved and smooth. The brown colour on the basal abdo-minal segment is blacker than it is on the others. ■^o'-Talorga, gen. nov. Wings without an areolet, the transverse cubital nervure short. Radial cellule long, reaching to the apex of the wing, the radius
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