"Wolbachia" is a widespread bacterial genus that infects insects' organs, most commonly the reproductive organs. "Wolbachia" has been observed to alter the host’s reproductive success upon infection. Through a series of manipulations, "Wolbachia-"infected hosts transmit this intracellular bacterium to uninfected individuals. These manipulations include male killing (increasing ratio of infected females that can reproduce), feminization (males become fertile females), parthenogenesis, and cytoplasmic incompatibility. Horizontal transfer of parthenogenesis-inducing "Wolbachia", which has been observed in "Trichogramma" wasps, causes infected females to asexually produce fertile females and nonfunctional males. The effects of this include potential speciation of "Trichogramma", if "Wolbachia" is maintained long enough for genetic divergence to occur and for a new species of asexual wasps to become reproductively isolated.