_Female._ Length 6 lines. Black; subopake; the face, sides of the thorax and beneath with silvery pubescence; the mandibles, palpi, and scape in front rufo-testaceous. Thorax: the anterior and intermediate legs rufo-testaceous, the femora having a darker stain above; the posterior legs black, with the base of the tibiae and the tarsi white. Abdomen rufo-testaceous beneath; the ovipositor white at its apex. _Hab._ Aru. Gen. STENOPHASMUS. Head globose; antennae longer than the body, and very slender and setaceous; the prothorax forming a slender neck; the anterior wings with one marginal and three submarginal cells; the femora slightly incrassate, not denticulate; the tarsi 5-jointed. Abdomen petiolated, the petiole as long as the abdomen; the ovipositor as long as the petiole and abdomen united. This genus is founded on the examination of a single individual, which in general appearance exactly resembles the smaller species of the genus _Megischus_; on examination, however, it will be found that it differs from that genus in the neuration of the anterior wings; its femora are not denticulate, in which character it differs from both _Megischus_ and _Stephanus_; with the latter genus it agrees in having 5-jointed tarsi. 1. STENOPHASMUS RUFICEPS. _S._ niger; capite et antennarum basi rufis; ovipositore tarsisque pallide testaceis; petiolo abdominis cylindrico; alis subhyalinis. _Female._ Length 5 lines. Black, slightly shining; head globose, red and sprinkled with white hairs, and delicately striated transversely. Thorax sprinkled with white pubescence above, the sides more thickly clothed with the same; above, the thorax is transversely rugose, on the metathorax becoming more regularly striate; the metathorax has a central longitudinal carina and also one on each side; the legs sprinkled with erect white hairs; the tarsi pale rufo-testaceous with the claw-joint black; wings subhyaline, with a broad light-fuscous stain along the centre of the anterior pair; a hyaline streak crosses them at the base of the stigma. Abdomen: the petiole as long as the thorax, narrowest at the base of the abdomen; it is rugose at the base; the ovipositor pale testaceous. _Hab._ Aru. Fam. ICHNEUMONIDAE, _Leach_. Gen. ICHNEUMON. 1. ICHNEUMON INSULARIS. _I._ niger; capite thoraceque albo variegatis; abdominis segmentorum primo, secundo tertioque albo maculatis.