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The oak processionary (OPM) (Thaumetopoea processionea) is a moth whose caterpillars can be found in oak forests, where they feed on oak leaves, causing significant damage. They travel in nose-to-tail processions (hence their name), often arrow-headed, with a leader followed by rows of several caterpillars abreast. [ 1 ]
The family Thaumetopoeidae—the "processionary moths"—comprises about 100 species, of which three have been recorded in Great Britain: Oak processionary caterpillar. Thaumetopoea pityocampa, pine processionary — probably rare immigrant (otherwise imported) Thaumetopoea processionea, oak processionary — immigrant
Thaumetopoea is a genus of moths belonging to the family Notodontidae. It was first described by Jacob Hübner in 1820. In their caterpillar form, they bear the vernacular name of processionary because their gregarious larvae conspicuously move in single file. The adults live a few days without feeding.
The larval stage of some Thaumetopoeinae are known as processionary caterpillars, so named because they move in columns in search of food, resembling a procession. [5] Some of the species, like the pine and oak processionaries, can constitute a health hazard due to their urticating hairs. Caterpillars of the pine processionary (Thaumetopoea ...
The adult is a stout furry moth which holds its wings like a tent over the body, in the manner of the eggar moths (Lasiocampidae).The adult is larger than the oak processionary, Thaumetopoea processionea, has a crescent marking on the wings (unlike the pale eggar moth; the oak processionary has an indistinct marking), and is found in coniferous rather than broad-leaved forests.
Oak processionary moth (Thaumetopoea processionea) [37] Musotima nitidalis , from Australia and New Zealand and first found in Dorset in 2009. It has since spread across southern England to Essex and is thought to have been originally imported with tree ferns .
Jun. 3—A caterpillar whose hairs can produce itchy skin rashes similar to poison ivy appears to be back in New Hampshire for the first time in 75 years, officials said Monday. Browntail moth ...
Another significant threat, the oak processionary moth (Thaumetopoea processionea), has emerged in the UK since 2006. The caterpillars of this species defoliate the trees and are hazardous to human health; their bodies are covered with poisonous hairs which can cause rashes and respiratory problems. [58] A little-understood disease of mature ...