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Fig. 1: Male

Fig. 2: Male

Fig. 3: Male

Fig. 4: Male genitalia

Fig. 5: Membranous lobe

Fig. 6: Female genitalia

Recognition

Diagnostic features

Adults

FWL: 6.4-9.1mm

Forewing color varies from grayish brown to yellow brown. Wing pattern is consistent with a dark costal spot and poorly defined median fascia. Males have a forewing costal fold.

The male genitalia is distinctive with two long cornuti in the aedeagus and a small membranous lobe on the apex of the valva. Females have a long, thornlike signum in the corpus bursae.

Related or similar species

Clepsis peritana is similar although most peritana specimens have a well defined median fascia that is continuous from costa to dorsum. Male peritana lack a forewing costal fold, have one short thin cornutus in the aedeagus, and the entire apex of the valva is membranous. Female peritana have a spiraled ductus bursae and lack a signum in the corpus bursae.

LBAM also has a membranous lobe on the apex of the male valva, although the lobe is weaker in virescana and continuous from the base of the sacculus.

Biology

Life history

Little has been reported on the life history of this species. Adult capture records indicate virescana is bivoltine in central California.

Host plants

Unknown. Powell (1964) reared larvae on fresh and decaying leaves of Prunus and Rosa and hypothesized that virescana may have feeding habits similar to peritana.

Area of origin

North America

Distribution

Widespread throughout the continental United States and southern Canada in more boreal conditions than peritana; not present in the southeastern United States

Taxonomy

Current valid name

Clepsis virescana (Clemens)

Common names

  • [Tortrix moth]

Synonyms

  • Clepsis virescana salebrosa
  • Ptycholoma glaucana, P. virescana
  • Lozotaenia glaucana, L. virescana
  • Tortrix sescuplana, T. virescana

Placement

Tortricinae: Archipini

Selected References

Freeman, T. N. 1958. The Archipinae of North America (Lepidoptera: Tortricidae). The Canadian Entomologist. 90 (suppl. 7). 89 pp.

Powell, J. A. 1964. Biological and taxonomic studies on tortricine moths, with reference to the species in California. University of California Publications in Entomology. Vol. 32. 317 pp.