KEYS    About TortAI    Fact Sheets    Glossary    ID Thumbnails    DNA Search    Dissection Guides

CAPS Non-target - Adult

Cydia latiferreana (Walsingham) (Tortricidae: Olethreutinae: Grapholitini)

Common names: filbertworm

Synonyms: aurichalceana (Melissopus), inquilina (Cydia)

Fig. 1: Adult

Fig. 1: Adult

Fig. 2: Male genitalia

Fig. 2: Male genitalia

Fig. 3: Female genitalia

Fig. 3: Female genitalia

Fig. 4: Larva

Fig. 4: Larva

Fig. 5: Resting adult

Fig. 5: Resting adult

Adult Recognition

FWL: 6.0-9.5 mm

Adult forewing color is extremely variable and ranges from pale tan to orange red to dark brown. Most individuals are marked with two metallic transverse bands that run from costa to dorsum.

Male genitalia are equally variable. Heinrich (1926) designated seven different forms (type A-G) based on variation in the dorsally projecting extensions of the tegumen and lateral projection off the aedeagus. The different forms are somewhat geographically isolated, and are assumed to constitute a species complex, although there have been no conclusive studies that demonstrate this to be the case.

Larval Morphology

Last instar larvae are approximately 12-15 mm in length with a whitish-gray abdomen. The head is yellowish brown. The prothoracic shield is pale brown with faint dark mottling. An anal comb is absent.


Cydia latiferreana completes multiple generations over most of its range. Adults may be present March to November in southern locations with reduced flight periods in the North.

Larvae feed within the acorns, nuts, and burrs of Quercus (oak), Fagus (beech), Corylus (hazelnut and filbert), and Castanea (chestnut). Overwintering occurs in the soil or leaf litter, and pupation occurs the following spring. Larvae have also been reported to infest oak galls produced by cynipid wasps.

Host plants

Commonly known as the filbertworm, Cydia latiferreana is a pest of cultivated filberts and hazelnuts.

Family Genus/species Common name
Betulaceae Corylus avellana L. common filbert
Betulaceae Corylus L. hazelnut
Fagaceae Castanea Mill. chestnut
Fagaceae Fagus L. beech
Fagaceae Quercus agrifolia Nee California live oak
Fagaceae Quercus alba L. white oak
Fagaceae Quercus chrysolepis Liebm. canyon live oak
Fagaceae Quercus douglasii Hook. & Arn. blue oak
Fagaceae Quercus falcata Michx. southern red oak
Fagaceae Quercus kelloggii Newb. California black oak
Fagaceae Quercus L. oak
Fagaceae Quercus lobata Nee valley oak
Fagaceae Quercus macrocarpa Michx. bur oak
Fagaceae Quercus nigra L. water oak
Fagaceae Quercus rubra L. red oak
Fagaceae Quercus velutina Lam. black oak
Fagaceae Quercus wislizeni A. DC. interior live oak
Juglandaceae Juglans regia L. English walnut
Proteaceae Macadamia F. Muell. macadamia
Punicaceae Punica granatum L. pomegranate
Rosaceae Prunus dulcis (Mill.) D. A. Webb sweet almond
Rosaceae Prunus ilicifolia (Nutt. ex Hook. & Arn.) D. Dietr. ssp. lyonii (Eastw.) P. H. Raven hollyleaf cherry
Rosaceae Prunus L.


Cydia latiferreana is widely distributed across North America and northern Mexico.


Brown, R. L. 1983. Taxonomic and morphological investigations of Olethreutinae: Rhopobota, Griselda, Melissopus, and Cydia (Lepidoptera: Tortricidae). Entomography 2: 97-120.

Gilligan, T. M., D. J. Wright and L. D. Gibson. 2008. Olethreutine moths of the midwestern United States, an identification guide. Ohio Biological Survey, Columbus, Ohio. 334 pp.

Heinrich, C. 1926. Revision of the North American moths of the subfamilies Laspeyresiinae and Olethreutinae. Bulletin of the U.S. National Museum. 132: 1-216.

MacKay, M. R. 1959. Larvae of the North American Olethreutidae (Lepidoptera). Canadian Entomologist Supplement 10: 1-338.

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

Photo Credits

Fig. 4: Steven C. Passoa, USDA-APHIS-PPQ

Fig. 5: Larry R. Barber, USDA Forest Service, United States

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