VIII. Descriptions of some new and apparently undescribed Species of Hymenopterous Insects from North China, collected by Robert Fortune, Esq.

The Hijmenoptera collected by Mr. Fortune, during his late travels in China, contained a number of species with which we were previously unacquainted ; such I believe those to be described in this paper.If an estimate may be formed of the abundance of any particular family from an inspection of the collection, I should conclude that the I'espidce are the most numerous in North China.A species of the genus Rhynchmm is particularly interesting, from the circumstance of its being stylopized, thus adding to our knowledge of the geographical range of these parasites.But perhaps the most interesting insect is a species of the genus Pison, the largest hitherto discovered ; in Australia many species are found, that country appears to be their metropolis ; in other localities they appear to be very rare.One or two of the species of Bombi from North China have also been met with in Northern India.The Ichneumon belonging to the genus Cryptiis, described in this paper, is probably the most beautiful species of the family.The precise locality, in some instances, is given from information kindly communicated to me by Mr. Fortune himself.Trogiis Pepsoides.Female.-Black; head and antennae pale yellow, the latter dusky towards their tips.The prothorax, mesothorax, tegulae and scutellum, reddish yellow ; the mesothorax has two divergent longitudinal pale yellow stripes ; the breast beneath suffused with yellow ; the legs yellow, excepting the coxae, intermediate femora beneath, and the posterior femora, which are black ; wings yellow, their apical margins dark fuscous ; the apical margins of the first and second segment of the abdomen more or less ferruginous.Length 11 lines.This species is in the collection of the British Museum. Hab.Ning-po-foo.