Candidatus Arsenophonus arthropodicus is a Gram-negative and intracellular secondary (S) endosymbiont that belongs to the genus Arsenophonus.[1] This bacterium is found in the Hippoboscid louse fly, Pseudolynchia canariensis.[1] S-endosymbionts are commonly found in distinct tissues.[1] Strains of recovered Arsenophonus found in arthropods share 99% sequence identification in the 16S rRNA gene across all species.[1]Arsenophonus-host interactions involve parasitism and mutualism, including a popular mechanism of "male-killing" found commonly in a related species, Arsenophonus nasoniae.[2][3] This species is considered "Ca. A. arthropodicus" due it being as of yet uncultured.[4]
^Darby, A. C.; Choi, J.-H.; Wilkes, T.; Hughes, M. A.; Werren, J. H.; Hurst, G. D. D.; Colbourne, J. K. (2010). "Characteristics of the genome of Arsenophonus nasoniae, son-killer bacterium of the wasp Nasonia". Insect Molecular Biology. 19 (s1): 75–89. doi:10.1111/j.1365-2583.2009.00950.x. ISSN1365-2583. PMID20167019. S2CID44987264.