HapalogeniusHagedorn 1912: 352. (Type species: Hapalogenius globosus Hagedorn, monobasic).
PseudohylesinusEggers 1920a: 234. (Type species: Pseudohylesinus togonus Eggers, monobasic, preoccupied by Swaine 1917: 11).
Metahylesinus Eggers 1922: 165. (Type species: Pseudohylesinus togonus Eggers, automatic, replacement name for Pseudohylesinus Eggers nec Swaine).
PseudophloeotribusEggers 1933: 18. (Type species: Pseudophloeotribus africanus Eggers, original designation). (The subsequent designation by Schedl 1960: 75 was unnecessary).
Glochicopterus Schedl 1954: 75. (Type species: Glochicopterus baphiae Schedl, monobasic).
HapalophloeusSchedl 1966: 363. (Type species: Metahylesinus brincki Schedl, original designation).
Hemihylesinus Schedl 1967: 224. (Type species: Hemihylesinus endroedyi Schedl, monobasic). Aridiamerus Schedl 1982: 284. (Type species: Aridiamerus angolensis Schedl, monobasic). ( Hylesinopsis angolanaWood 1988a: 32 is an unnecessary replacement name.)
Eggers (1927) , having compared the types of Phloeotribus fuscipennis (Chapuis, 1869) and Hapalogenius globosus , concluded that the species were identical. Chapuis’ name had priority, but the species did not belong in Phloeotribus and was transferred to Hapalogenius . This conclusion was accepted by Schedl (1963a) . Wood and Bright (1992: 94) placed Phloeotribus fuscipennis and its synonym Hapalogenius globosus in Hylesinopsis , overlooking the fact that Hapalogenius has priority, but they also ( Wood and Bright 1992: 96 ) cited Hapalogenius , with its type species, Hapalogenius globosus , as a synonym of Rhopalopselion . As noted above, Alonso-Zarazaga and Lyal (2009) reinstated Hapalogenius as the correct name for the species treated by Wood and Bright (1992) under Hylesinopsis . I consider that Hapalogenius is a valid genus, but that it is distinguished from Rhopalopselion and Hylesinopsis by the characters given in the key above, and with the synonymy given. I have examined the type species of all the genera involved. In addition to the type species listed above, the following 30 nominal species can be assigned to the genus: Hapalogenius acaciae Schedl*, Hapalogenius congonus Schedl, Hapalogenius immaturus Schedl*, Hapalogenius lesnei Eggers, Hapalogenius lonchocarpae Schedl*, Hapalogenius maculatus Schedl*, Hapalogenius occidentalis Schedl*, Hapalogenius primus Schedl, Hapalogenius rufus Schedl*, Hapalogenius senegambiensis Schedl, Hapalogenius subseriatus Schedl*, Hapalogenius suturalis Schedl*, Hylesinopsis kenyae Wood, Hylesinopsis kenyae ugandae Wood*, Hylesinus horridus Eggers, Hylesinus pusillus Gerstaecker, Metahylesinus brincki Schedl*, Metahylesinus dimorphus Schedl, Metahylesinus hispidus Eggers, Metahylesinus orientalis Eggers*, Metahylesinus quadrituberculatus Schedl, Metahylesinus striatus Schedl*, Metahylesinus sulcatus Eggers*, Pseudophloeotribus africanus Eggers*, Pseudophloeotribus oblongus Eggers*, Pseudophloeotribus rhodesianus Eggers*, Pseudophloeotribus seriatus Eggers, Pseudophloeotribus squamosus Eggers*, Pseudophloeotribus variegatus Eggers*, Rhopalopselion atakorae Schedl* (* - type(s) examined). The genus clearly belongs in the tribe Hylesinini sensu Wood (1986a) , but this tribe seems likely to be paraphyletic (e.g. Farrell et al. 2001 , Jordal et al. 2008 , McKenna et al. 2009 ), and may need to be redefined.
