Also, different opsins may operate or not at various stages of a dragonfly’s life; some dragonfly larvae may hatch in sand and may lack blue opsins because blue light does not penetrate underground.
petraea are the host plants for more than 70 species of cynipid gall wasp. It is the larval stage of these insects that induce the plant to produce abnormal growths, known as galls, that enclose the ...