Chthonotrigona Engel, 2022

Engel, Michael S., 2022, Notes on the stingless bee genera Scaura and Geotrigona (Hymenoptera: Apidae), Journal of Melittology 2022 (108), pp. 1-4 : 3

Chthonotrigona Engel , new subgenus

ZooBank: urn:lsid:zoobank.org:act:EE5877AE-AFEC-40A6-BB9C-C08EE24AF89D

TYPE SPECIES: Trigona fulvohirta Friese, 1900 .

DIAGNOSIS: This subgenus includes a group of distinctive species in which the apical margin of the metatibia has a distinctive tooth or angle posteriorly toward the broadly rounded superior angle, as well as a deep concavity in the apical margin inferior to the tooth (between the tooth and the penicillum). The result of this configuration is that the straight or rounded margin superior to the tooth and to the superior angle is projected apically relative to that portion of the apical margin inferior to the tooth. In the analysis of Rasmussen & Cameron (2010), this group was recovered as sister to all other Geotrigona .

ETYMOLOGY: The new subgeneric name is a combination of the Ancient Greek adjective khthónios (ΧΘΌνῐος, meaning, “subterranean”) and Trigona Jurine. The gender of the name is feminine.

INCLUDED SPECIES: Geotrigona acapulconis (Strand) , G. chiriquiensis (Schwarz) , G. fulvohirta (Friese) , G. fumipennis Camargo & Moure , G. joearroyoi Gonzalez & Engel, G. kaba Gonzalez & Sepúlveda , G. leucogastra (Cockerell) , G. luti Camargo & Moure , and G. terricola Camargo & Moure.