Pine Processionary moth nest, Etna Sicily

afrasia afro eurasia animal construction animal constructions atmosphere behavior behaviors botanical species botanicals species bought boughts branch branches butterflies butterfly colonies colony conifer conifer needle conifer needles coniferale conifers continent continental area count counting crop disease crop diseases dangerous species december description descriptions diseased plant ec eec enumeration enumerations etna (volcano) eu eurafrasia eurasia europe european economic community european union flora florae garden and crop destroying garden and crop destroyings garden pest garden pests group groups gymnosperm gymnospermae gymnosperms heterocera sp heteroceridae sp insect insects interaction between species italy landmass landmasses lepidoptera lepidopteran living organism living organisms localisation localization location mongibello (volcano) month of year months of year morphologies morphologies (botany) morphology morphology (botany) moth multitude multitudes nest nests night butterfies night butterfly nocturnal butterflies nocturnal butterfly notodontididae notodontids old world organism organisms pinaceae family pinale pine pine (pinus sp) pine family pine needle pine needles pine processionary moth (thaumetopoea pityocampa) pine processionary mothes (thaumetopoea pityocampa) pines (pinus sp) plant plant disease plant diseases plants relation between species risky species seasons sicily (island) species species characteristic species characteristics species particularities species particularity spermatophyte spermatophytes spruce needle spruce needles stinging species temperate season temperate seasons time scale time scales ue urticant species vegetale species vegetales species wild animal wild animals wild fauna wild faunae winter