Trans ovarian transmission is seen among:

Transovarial or transovarian transmission- transmit pathogens from parent ahropod to offspring ahropod. Rickettsia rickettsii, carried within ticks, is passed on from parent to offspring tick by transovarial transmission Occurs also in aedes mosquito vector of the yellow fever virus and in phlebotomine sandflies that transmit pappataci fever Rickettsia prowazekii kills the vector that carries it (human louse).