Phrixosoma nigra (Eggers)

Beaver, Roger A, 2010, Taxonomic notes on the afrotropical genera Hapalogenius Hagedorn, Hylesinopsis Eggers, and Rhopalopselion Hagedorn (Coleoptera, Curculionidae, Scolytinae), ZooKeys 56, pp. 157-170 : 161

Phrixosoma nigra (Eggers)

Bothryperus niger Eggers 1933: 21

Phrixosoma nigra (Eggers): Wood and Bright 1992: 190

Hapalogenius niger Schedl 1952: 7, syn. n.

Metahylesinus niger (Schedl): Schedl 1960: 79

I have examined the holotype of Phrixosoma nigra (NHML), and the two syntypes of Hapalogenius niger and a further specimen standing under this name in the Schedl collection (NMW). Both species were described from Uganda, from the same host species ( Harungana madagascariensis ( Clusiaceae )), and are clearly synonymous. Schedl (1952) appears not to have noticed that the eyes of his species are bipartite, and that the antennal club is asymmetrical with a partly septate first segment - characteristics of Phrixosoma and not of Hapalogenius . Schedl (1963a) briefly describes the biology of the species, and illustrates the gallery system (as Bothryperus niger ).