thaumetopoea pityocampa, processionary caterpillar tent-like nest in pine tree branch with blue skies in mallorca

accumulates bottom caterpillars cedars central countries dangerous death destructive diet eaten europe follicles humans inhaled itchiness larvae layers like moth needle nests north notable openings overwinter pets pine pines pityocampa processionary sack shelter southern species tent thaumetopoea top tree trees waste