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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 ]
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.
Thaumetopoein is a urticating protein found in the hairs and integument of the caterpillars of the pine processionary (Thaumetopoea pityocampa) and oak processionary (Thaumetopoea processionea). [1] It was first identified in 1986 by a group of French scientists at the University of Bordeaux.
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 .
Ochrogaster lunifer, the bag-shelter moth or processionary caterpillar, is a member of the family Notodontidae. The species was first described by Gottlieb August Wilhelm Herrich-Schäffer in 1855. Both the larval and adult forms have hairs that cause irritation of the skin . The adult moth has a woolly appearance and its wings can grow to be ...
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.
Phoberia atomaris, the common oak moth, is a species of moth in the family Erebidae. The species is found in North America, from Quebec and Ontario south to Florida, and west to Kansas and Texas. The wingspan is about 38 mm. Adults are on wing from March to July depending on the location. The larvae feed on Oak species, including Northern red oak.
Phryganidia californica, the California oakworm or California oak moth, is a moth of the family Notodontidae. The species was first described by Alpheus Spring Packard in 1864. It is found along the coasts of the US states of California and Oregon. The wingspan is about 30 mm (1.2 in). They are tan to gray moths with prominent wing veins.