Variable Climbing Caterpillar (Xestia elimata)

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1178089
Taxonomy
Kingdom: Animalia
Phylum: Arthropoda
Class: Hexapoda (including Insecta)
Order: Lepidoptera
Family: Noctuidae
Genus: Xestia
Species: elimata
Scientific Name
Xestia elimata
(Guenée)
Common Names

Xestia elimata

Maier, C.T.; Lemmon, C.R.; Fengler, J.M.; Schweitzer, D.F.; Reardon, R.C.; Caterpillars on the Foliage of Conifers in the Northeastern United States. Morgantown, WV. USDA Forest Service. Forest Health Technology Enterprise Team Connecticut Agricultural Experiment Station. FHTET-2004-01. March 2004. 151 p.

Contents

Description

Speckled, grayish brown body with dark brown spiracular stripe; variable body color. Brown head with dark brown streak down lobes to frons (extension of subdorsal stripe) and with reticulation elsewhere. White middorsal stripe; remainder of dorsum light grayish brown with row of paired, offset, dark brown spots on each side of segments; intermittent, white subdorsal stripe trimmed with dark brown mainly above. Distinct, dark brown spiracular stripe; body lightly speckled with white laterally; light brown or grayish brown below yellowish spiracles. Up to 30 mm.

Food

Pitch, red, and other hard pines.

Life Cycle

One generation. Partly grown to mature caterpillar overwinters in soil or debris. Mature caterpillar present on foliage in October and from April to June in New England, and from October to April in southern New Jersey.

Comments

The mature caterpillar of this species also has a common grayish brown form and a scarce green form. This species has another appropriate common name, the chameleon caterpillar. Normally, the brownish last instars of Xestia species feed at night. Occasionally, the last instar of the variable climbing caterpillar will climb trees to feed during exceptionally warm periods in the winter. Before forming a pupa, this caterpillar constructs a chamber in the soil where it may remain dormant for 2 to 8 months. In some areas, the last instars of Xestia are easily collected at sugar baits in the fall and the spring.

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