sodalis glossinidius sodalis glossinidius sodalis glossinidius is a species of bacteria, the type and only species of its genus. it is a microaerophilic secondary endosymbiont of the tsetse fly. strain m1t is the type strain. sodalis glossinidius is the only gammaproteobacterial insect symbiont to be cultured and thus amenable to genetic modification, suggesting that it could be used as part of a control strategy by vectoring antitrypanosome genes. the organism may increase the susceptibility of tsetse flies to trypanosomes. sodalis glossinidius scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: enterobacterales family: pectobacteriaceae genus: sodalis species: s. glossinidiusdale and maudlin 1999 despite gene erosion and pseudogene multiplication in a genome of sodalis glossinidius, these pseudogenes remain actively transcribed. parasites s. glossinidius is itself host to a prophage discovered by clark et al. 2007.