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Show 270 MR. w. L. DISTANT O N [Feb. 15, 2. Additions to the Rhynchotal Fauna of the Ethiopian Region. By W . L. DISTANT. [Received January 27, 1881.] (Plate XXXI.) The Rhynchota of the Ethiopian Region form a group of insects that has been fairly worked by entomologists, and of which sufficient material exists to warrant the hope that in a few years we may have a moderately complete list of the fauna. The late Prof. Stal attempted, and at the time succeeded in producing a Monograph, ' Hemiptera Africana,' which was complete to date, but now requires much supplemental work. I have for some years had considerable facilities in this direction, and have also lost no opportunity of acquiring African specimens. The following descriptions relate to undescribed species from collections which have come into my possession from various sources since I wrote my " Notes on African Hemiptera Heteroptera," in the 'Entomologist's Monthly Magazine,' vols. xiv. and xv. With the exception of two species from Nyassa and South-eastern Africa, they have all been received from the Calabar district, West Africa. HEMIPTERA HETEROPTERA. Fam. PENTATOMID^E. TROPICORYPHA FORMOSA, n. sp. 5 . Above bright green, shining ; anterior two thirds of lateral pronotal margins, a small spot on each side of the head at base behind the eyes, ocelli, connexivum, underside of body, and basal halves of femora luteous. Antennae pitchy, third joint much longer than second (fifth wanting). Head with the central lobe sub-prominent, lateral lobes rounded and somewhat reflexed at apical angles. Pronotum with the lateral margins straight, reflexed anteriorly. Lateral angles subprominent and subacute. Membrane pitchy, margins and apex paler. Rostrum reaching posterior coxae, basal joint luteous, remainder pitchy. Tibiae above stronglv sul-cate, tarsi pitchy. Ventral spiracles fuscous. Long. 18 millims., lat. pronot. ang. 10. Hab. Calabar. This species is strikingly distinct from any other of the genus, both in size and colour. Bright green with luteous markings appear to be somewhat representative colours in the West-African Pentatomitlae. Note.-In placing this species in the genus Tropicorypha, Mayr, and the following species in the genus Halyomorpha, Mayr, I rely more upon the diagnostic characters given by Stal (En. Hem. pt. v. pp. 56 & 57) than on those given in Dr. Mayr's original description (Verh. z.-b. Ges. Wien, xiv., pp. 910 & 911), which, |