spiny oak slug caterpillar euclea delphinii with parasitic brachonid wasp pupa on its back.

animal arthropod background biodiversity biology brachonid bug caterpillar close closeup color control delphinii ecology ecosystem entomology environment euclea fauna garden green horizontal host image insect insects invertebrate larva larvae leaf macro natural nature oak one outdoors parasite parasitic people pest phenology photography plant pupa slug spiny spring springtime summer texas usa wasp wild wildlife zoology