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CAPS Non-target - Adult

Xenotemna pallorana (Robinson) (Tortricidae: Tortricinae: Archipini)

Synonyms: lata (Tortrix)

Fig. 1: Male

Fig. 1: Male

Fig. 2: Female

Fig. 2: Female

Fig. 3: Male genitalia

Fig. 3: Male genitalia

Fig. 4: Female genitalia

Fig. 4: Female genitalia

Adult Recognition

FWL: 8.5-14.0 mm

Forewing color varies from pale yellow to cream to light brown. Many individuals are unmarked although some exhibit a faint reticulated forewing pattern. Hindwings are brownish gray and white or yellowish. Males lack a forewing costal fold.

Adults are similar to Clepsis clemensiana, and the two species are often mixed in collections. Males can be separated by the forewing costal fold, which is present in C. clemensiana and absent in X. pallorana. A genitalic dissection can be used to confirm identity. 

Larval Morphology

Late instar larvae are approximately 16-28 mm long with a green abdomen. The head and prothoracic shield are green and unmarked. An anal comb is present with 7-9 teeth. The unmarked larvae of X. pallorana may appear similar to those of many other Archipini.


Xenotemna pallorana completes two annual generations over much of its range. Adults are present May to August.

Females lay eggs in masses on the upper surface of leaves. Larvae feed in folded leaves and mid-instar larvae construct a hibernaculum in which overwintering occurs. Feeding resumes in the spring and pupation occurs in the final larval feeding site.

Host plants

Chapman and Lienk (1971) suggest that primary larval hosts are limited to herbaceous legumes such as alfalfa and white sweet clover. Other larval hosts, such as apple, are considered secondary hosts. Xenotemna pallorana has also been reported to cause economic injury to young pines in plantations.

Family Genus/species Common name
Asteraceae Aster L. aster
Asteraceae Erigeron annuus (L.) Pers. eastern daisy
Asteraceae Silphium L. rosinweed
Asteraceae Solidago L. goldenrod
Asteraceae Symphyotrichum novae-angliae (L.) G. L. Nesom New England aster
Clusiaceae Hypericum perforatum L. common St. Johnswort
Fabaceae Medicago sativa L. alfalfa
Fabaceae Melilotus officinalis (L.) Lam. yellow sweetclover
Fabaceae Melilotus Mill. sweetclover
Fabaceae Trifolium L. clover
Lamiaceae Monarda fistulosa L. wild bergamot
Pinaceae Picea glauca (Moench) Voss white spruce
Pinaceae Pinus banksiana Lamb. jack pine
Pinaceae Pinus resinosa Aiton red pine
Pinaceae Pinus strobus L. eastern white pine
Pinaceae Pinus sylvestris L. Scots pine
Pinaceae Pinus L. pine
Rosaceae Fragaria L. strawberry
Rosaceae Malus Mill. apple
Rosaceae Prunus pumila L. sandcherry
Rosaceae Prunus serotina Ehrh. black cherry
Rosaceae Prunus virginiana L. chokecherry
Rosaceae Prunus L.
Rosaceae Rosa L. rose
Santalaceae Comandra umbellata (L.) Nutt. bastard toadflax
Ulmaceae Ulmus L. elm
Verbenaceae Verbena L. vervain


Xenotemna pallorana is widespread in the continental United States and southern Canada.


Chapman, P. J. and S. E. Lienk. 1971. Tortricid fauna of apple in New York (Lepidoptera: Tortricidae); including an account of apple's occurrence in the state, especially as a naturalized plant. Spec. Publ. Geneva, NY: New York State Agricultural Experiment Station. 122 pp.

MacKay, M. R. 1962. Larvae of the North American Tortricinae (Lepidoptera: Tortricidae). The Canadian Entomologist Supplement 28: 1-182.

Powell, J. A. and P. A. Opler. 2009. Moths of western North America. University of California Press, Berkeley. 369 pp.

Tortricids of Agricultural Importance by Todd M. Gilligan and Marc E. Epstein
Interactive Keys developed in Lucid 3.5. Last updated August 2014.