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Forest tent caterpillar populations increase periodically to outbreak densities. [12] Not much is known about the factors that lead to the initiation of forest tent caterpillar outbreaks, although some plausible mechanisms are higher temperatures in the spring, phenological synchrony with their host plants, and reduced predation enemies. [14]
Tent caterpillars exhibit boom-or-bust population dynamics. The most notorious of the outbreak species is the forest tent caterpillar. During outbreaks, the caterpillars can become so abundant that they are capable of completely defoliating tens of thousands of acres of forest.
The Lasiocampidae are a family of moths also known as eggars, tent caterpillars, snout moths (although this also refers to the Pyralidae), or lappet moths. Over 2,000 species occur worldwide, and probably not all have been named or studied. It is the sole family in superfamily Lasiocampoidea.
Pacific tent caterpillars have speckles on the sides, orange hairs on top and grayish or cream colored hairs on the sides. The head is dark blue. Eggs, laid along sticks in clumps, are golden yellow. [2] According to the U.S. Forest Service, "Other than obvious aesthetic impacts, tent caterpillars typically do not cause major damage on ...
The eastern tent caterpillar (Malacosoma americanum) is a species of moth in the family Lasiocampidae, the tent caterpillars or lappet moths. It is univoltine , producing one generation per year. It is a tent caterpillar , a social species that forms communal nests in the branches of trees.
Malacosoma californicum, the western tent caterpillar, is a moth of the family Lasiocampidae. It is a tent caterpillar. The Western Tent Caterpillar is found in southern Canada, the western United States, and parts of northern Mexico. There are currently six recognized subspecies of M. californicum. [1]
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7698 – Malacosoma disstria, forest tent caterpillar moth 7699 – Malacosoma constricta , Pacific tent caterpillar moth 7700 – Malacosoma tigris , Sonoran tent caterpillar moth