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Show 1883.] BEETLES O F T H E F A M I L Y EROTYLID/E. 87 on its disk ; elytra rather deeply striated at their bases, but the striae not continued to the middle. The black patch on the elytra leaves only a narrow band at the base, the entire margin as far as the last stria, and about two fifths at the apex, red. The thorax has a distinct fovea on each side of the base, in which are a few larger punctures. The elytra are gibbous, depressed at the base, and with a deeply impressed marginal line, I have seen one specimen in the collection of the late Mr. Crotch at Cambridge; and there is one in m y own, given m e by M r. Bartlett. 29. PALiEOLYBAS CYCHRAMOIDES. Ovalus, minus convexus, rufus; capite prothoraceque minute sed distincte punctatis, illo epistomate nigrescente ,* elytris minutissime punctatis, fere lavibus, callo humerali margineque (ad apicem latius) nigris. Long. 8 millim. Hab. Africa occid., Camaroon Mountains. Broadly ovate; elytra without striae, punctuation scarcely visible under a strong lens ; tibia? very broadly dilated ; club of the antennae dark. This is an insect allied to P. humeralis, Crotch; and I should hardly have ventured to assert its distinctness, the description of that species being so brief, but that fortunately the unique type from Murray's collection is now in m y own. It differs from P. humeralis in being less convex, in wanting any trace of stria?, and in the black margin which surrounds the elytra except at their bases, and which is very distinct. The rest of the insect, with the exception of tbe club of the antenna? and the epistoma in front, is deep brick-red. A single example. EXPLANATION OF PLATE XVIII. Fig. 1. Triplatoma gestroi, p. 80. 2. andamanensis, p. 79. 3. philippinensis, p. 79. 4. Episcapha octopustulata, p. 82. 5. Micrencaustes torquatus, p. 76. 6. Hybosoma hydropicum, p. 77. 7. Encaustes crotchi, p. 76. 8. Megalodacne imperatrix, p. 78. 9. Megischyrus bartletti, p. 85. 10. Aulacochilus agaboides, p. 83. 11. , var. furciferus, p. 84. 12. episcaphoid.es, p. 84. NOTICE. According to present arrangements the ' Proceedings' are issued in four parts. as follows:- Part I. containing papers read in January and February, on June lBt. II. „ ,, „ March and April, on August 1st. III. „ „ „ May and June, on October 1st. IV. „ „ „ November and December, on April 1st The price i9 12*. per part for the edition with coloured, and 3s. per part that with uncoloured Plates. |