Glypta fumiferanae

(Viereck, 1912)

Glypta fumiferanae is an that parasitizes (Choristoneura fumiferana and C. occidentalis). As an , females inside larvae, and developing wasp offspring consume the host from within. This is a significant of spruce budworm, a major defoliator of coniferous forests in North America. females are and require feeding () for extended longevity and high ; unfed adults survive only 2–5 days and produce far fewer eggs.

1956. Hymenoptera. Ichneumonidae. Glypta fumiferanae (Vier.) Adult of this important western spruce budworm parasite ovipositing in body of hibernating spruce budworm larva concealed within twig scar. Baker, OR. (34009644274) by R6, State & Private Forestry, Forest Health Protection. Used under a Public domain license.

Pronunciation

How to pronounce Glypta fumiferanae: /ɡlɪp.ta fjuː.mɪ.fɛˈɹeɪni/

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Habitat

Coniferous forests, particularly spruce-fir stands where occur. are found on foliage during periods.

Distribution

North America: documented from British Columbia, northern New Brunswick, and other regions with . GBIF records include Cypress Hills, Elkwater, Beausejour, Glenlea, and Spruce Woods Forest Reserve in Canada.

Seasonality

and activity coincide with larval development; temporal activity patterns influence rates.

Diet

feed on or other sources; consume tissues from within larvae.

Host Associations

Life Cycle

Females oviposit directly into . Development occurs internally; are found on foliage during . of possible in 4th and 5th larvae using electrophoretic techniques (diagnostic : aconitase, esterase, leucine aminopeptidase, 6-phosphoglucose dehydrogenase).

Behavior

Females are and exhibit resorption when starved at high . At low host densities, fed oviposit live eggs daily; unfed adults oviposit approximately every 10 days. Adult spatial and temporal activity patterns directly influence success.

Ecological Role

agent of , a destructive forest pest. of this can be modeled using -dependent parasitoid- interaction models.

Human Relevance

Studied for potential against . Electrophoretic methods developed for this enable routine assessment of rates in forest pest management.

Similar Taxa

  • Apanteles fumiferanaeAlso parasitizes ; distinguished by location and activity patterns. Glypta fumiferanae cocoons are found on foliage during , whereas Apanteles fumiferanae estimates rely on potential emergence from previous .
  • Other Glypta speciesGlypta fumiferanae is specifically associated with ; other Glypta attack different .

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