spiny oak slug caterpillar (euclea delphinii) on a diseased maple leaf in houston, tx

above agriculture animal arthropod biology bug caterpillar caterpillars close color creature dangerous delphinii destructive detail directly dorsal ecology ecosystem entomology environment euclea fauna garden green horizontal image insect invertebrate leaf limacodidae macro nature oak outdoors people pest photography plant prickly sharp slug spikes spiky spines spiny spring springtime summer toxic venomous wild wildlife zoology