closeup on the the spotted larvae of the willow sawfly , nematus salicis on salix caprea in the garden

arthropoda arthropod hymenoptera insect magnification nature nematus salicis symphyta willow sawfly animal wildlife biology black spots caterpillar close closeup view detailed entomology europa euura fauna forest hunger hymenopteran hypolaepus invertebrate larva larvae leaf macro natural outdoors pest pteronidea pteronus salix single spotty tenthredinidae wasp wild spotted caprea garden