Familia	Cerambycidae (Latreille, 1802)
Subfamilia	Prioninae (Latreille, 1802)
Tribus	Macrotomini (Thomson, 1860)
Genus	Arba (Quentin & Villiers, 1977)
Subgenus
Species	erlangeri (Lameere, 1903)
Synonyms	gestroi (Lameere, 1903)
other names	Macrotoma erlangeri (Lameere, 1903) Macrotoma gestroi (Lameere, 1903) Macrotoma Navosomopsis erlangeri (Lameere, 1913) Macrotoma Navosomopsis gestroi (Capra, 1939)
Lifezones:	Afrotropic
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Distribution:	Ethiopia, Somalia
Occurrence:	I II III IV V VI VII VIII IX X XI XII