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Show 1890.] COLEOPTERA F R O M CENTRAL AFRICA. 487 stated that the femora were sometimes toothed atld sometimes simple. The toothed femora are now known to be a generic character which I believe does not occur in any American species of Callichroma and its immediate allies. EC^ORUS STRANGULATUS, Serville, var. PURPUREIPES. A forma typica differt thorace supra viridi-aurato, parte cum occipite, antennis pedibusque purpureo-cupreis. As E. strangulatus is known to vary in colour (conf Quedenfeldt Berl. ent. Zeits. 1883, p. 144), the present may be one of its varieties. In the sculpture and colour of the elytra it offers no difference. It seems, however, judging from the scanty material before me, to be a narrower form with stronger anterior strangulation of the thorax, and the scape of the antennas is confusedly scabrous rather than transversely rugose as in the typical form. PHROSYNE BREVICORNIS, Fabr. _ A species widely distributed along the West-African coast- from Sierra Leone to Angola. CLYTUS CONTRACTIFRONS, n. sp. Subgen. Mecometopo proxime affinis; from subelongata, fere verhcahs, inter cavitates antennarum angustissima. Mediocriter elongatus, cylindricusjusco-aureus^ Icete sericeo-pubescens; dimidio basali nigris utrinque linea curvata a scutello latent pldga iriangulari subbasali signdturaque hamata flavescenti-auratis, fascia obscura posteriore cineras-cente; mesosterno segmentoque primo ventrali aureo-pilosis Long. 10 millim. One example. The species seems referable to a section or subgenus of Clytus near Mecometopus. The forehead is rather long and subverticah plane^ with widely open antennal cavities, which leave only a narrow space between ; of antenniferous tubercles no trace 1 he antennae are about two thirds the length of the body, the joints without spines, frOhl the fourth to the ninth shortened and thickened tenth and eleventh rapidly narrowing. The thorax is subglobular]' slightly narrowed anteriorly, very convex and wider than the elytra • it is free from crests and markings, the long tawny-silkv pile laid and convergent. The elytra are parallel, flexuoso-truncate at the apex, the outer angle produced in a lorigish spine. The hind legs are only moderately elongated, the femora not thicker than the others, armed at the apex with two very short spines. PTYCHOL^MUS siMPLfcicoLLts, Thomson. A species originally described from the Gaboon. PARISTEMIA THEORINI, Aurivillius, Entom. Tidskf. 1886, p. 89 (Amphidesmus). One example, differing from the description of Prof. Aurivillius tinly in the black sutural vitta near the base being expanded behind |