Dejongiella cavifrons (Fairmaire), comb. nov.

(Fig. 1)

Discoderes cavifrons Fairmaire 1904: 234 (orig. desc.); Théry 1905: 178; Marie & Lesne 1917: 40. Phlocteis cavifrons: Obenberger 1928: 341; 1934: 796; Bellamy 2001b: 66.

Specimens examined. Holotype (gender indet.) (MNHN): Soalala, H. Perrier; 2 spms. (CASC): Madagascar, Bekiley, xii.1943, det. Descarpentries.

Remarks. This little species is neither a Discoderes Chevrolat, 1838 (type species: Agrilus salzmanni Solier, 1833, original designation) nor a Phlocteis Kerremans, 1893 (type species: Buprestis exasperata Swartz, in Schönherr, 1817, original designation), the two genera where it has been placed in the past, as currently defined (Bellamy 1986, 1988a, 1988b). No members of the former genus are known to occur on Madagascar, while two species of Phlocteis are known from the island (Bellamy 2001a). Discoderes is represented by two species: D. salzmanni (Solier) is known from Subsaharan Africa including records for Ethiopia, Guinea, Nigeria and Senegal is probably naturally distributed in the thorn­scrub savanna immediately below the southern boundary of the Sahara Desert. The second species, D. villiersi Descarpentries, 1952 is known only from Benin. These two species are moderate­sized coraebines, relatively elongate, flattened above, with the upper surface uniform in color, aeneneous ( D. villiersi) to black ( D. salzmanni) with the head only very feebly longitudinally sulcate, with the upper surface notably patterned with setal spots and short fasciae (white on D. salzmanni or cream­colored on D. villiersi). The five species of Phlocteis differ by having both the head and pronotum with narrow, moderately elevated gibbosities, four on the frontovertex.