breznakia pachnodae breznakia pachnodae breznakia pachnodae is a gram-positive and obligately anaerobic bacterium from the genus of breznakia which has been isolated from the gut of the insect larva pachnoda ephippiata in germany. breznakia pachnodae scientific classification domain: bacteria phylum: bacillota class: erysipelotrichia order: erysipelotrichales family: erysipelotrichaceae genus: breznakia species: b. blatticola binomial name breznakia blatticolategtmeier et al. 2016 type strain dsm 16784, pei041, pei061, jcm 30191