Harposporium structures (see Esser and El-Gholl, 1992). Most species of Harposporium produce small conidia that when ingested by potential prey, germinate in the alimentary canal and eventually killing the nematode (drawing is courtesy of Esser and El-Gholl).
	Harposporium anguillulae with it’s conidia dislodged. Conidia can only be ingested by nematode with large bucal cavity. However, this species of Harposporium was reported to be able to infect nematode externally by piercing conidia to nematode cuticle (Esser and El-Ghol, 1992) (pictures is courtesy of Wang).
	Harposporium anguillulae on a dorylaim (picture is courtesy of Esser).
	Harposporium anguillulae on Mononchus (picture is courtesy of Esser).
	Harposporium subiliforme produces spores that adhere to the cuticle of prey. Spores can also be swallowed by the nematode prey and infects the nematode (picture is courtesy of Esser).