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Show 1881.] NEW AFRICAN RHYNCHOTA. 271 referring most exhaustively to the type species, are too minute if applied to the whole of the allied species of the genus, failing (especially in Tropicorypha) in the structural characters of the antennae and rostrum. IIALYOMORPHA VERSICOLOR, n. sp. (Plate XXXI. fig. 1, $ .) Above pale luteous, irregularly punctured, and shaded with fuscous. Head luteous, with the lateral margins, posterior margins of central lobe (which are angulated and widened to base), and a small curved streak on inner margin of eyes black; obscurely transversely striate; lobes subequal in length. Antennae, 3, castaneous, third, fourth and fifth joints with the apices pitchy and subequal in length ; $ , second joint pitchy, third castaneous, pitchy at apex (remainder mutilated). Pronotum with the anterior portion pale levigate; posterior margin of this space very strongly sinuated, basal half clouded with fuscous and strongly punctate; the lateral margins are ampliated and reflexed, with the anterior angles toothed behind the eyes, lateral angles subprominent and obtusely rounded. Scutellum with a small pitchy callosity in each basal angle, strongly punctate, with some obscure pitchy marks at base, lateral margins, and apex. Corium strongly punctate, clouded and mottled with dark fuscous, and with a small levigate space on disk near apex; membrane hyaline, with a short transverse pitchy line near base. Abdomen above red, connexivum ochraceous, with a black line at base and apex of each segment. Underside of body somewhat paler ; legs irregularly marked with fuscous or pitchy. Rostrum just passing posterior coxae, with the apex black. Long., S, 13 millims., lat. pronot. ang. 7. Long., $,17 millim., lat. pronot. ang. 9. Hab. Nyassa {Farler). It is probable that the difference in size between the sexes is less than that observed between the only two specimens I possess or have seen. This very distinct species, in the structure of the pronotum, is most allied to H. reflexa, Sign. TYOMA PORRECTA, n. sp. (Plate XXXI. fig. 2.) Fuscous, sparingly but coarsely punctate; head more finely punctate. Antennae ochraceous, with the second joint longer than the third, subequal with the fourth, fifth slightly the longest, and, excepting base, fuscous. Pronotum somewhat verrucose on anterior portion ; lateral angles acutely straightened and produced; apices pitchy, with extreme tips reddish orange; lateral margins of pronotum and head obscurely black ; margins of connexivum strongly and obtusely spinous. Body beneath much darker. Legs pale ochraceous ; apices of femora, bases and apices of tibiae pale castaneous. Rostrum ochraceous, reacbing posterior coxae. Long. 9 millims., lat. pronot. ang. 6. Hab. Camaroons {Rutherford). Allied to T. cryptorhyncha, Germ., the South-African and only other known species of this peculiar and distinct genus, from which |