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Species Page - Dioryctria abietivorella
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scientific name    Dioryctria abietivorella    

common name     Fir Coneworm

habitat
Coniferous forests throughout range.

seasonality
Adults fly July - September.

identification
Wingspan 10.0-13.0 mm. Lacking raised scales. Forewings primarily black and white with prominent a discocellular spot. Small beige patch in subbasal area but lacking reddish scales throughout wing. Male genitalia: Uncus with slight constriction. Valve with a prominent apical projection and accessory spine. Vesica with a large cornutus and many smaller cornutii. Female genitalia: Sclerotized ductus bursae with a longitudinal membranous region. Pheromones: Blend of Z9 E11-14Ac 100 + Z9 E12-14 Ac 1. Additional components may be present.

life history
Adults emerge and lay eggs under scales of new cones or under bark. Larvae will feed internally on cones, needles, twigs and under the bark of the host. Feeding sites can be recognized by the accumulation of webbing and frass around the entrance hole or around needles and twigs forming a loose shelter. Pupation occurs in host. Population numbers may reach infestation levels, especially in seed orchard environments.

conservation
Not a concern. Larvae are economic pests particularly in seed orchard environments.

diet info
Recorded from a wide range of coniferous hosts. Fir, spruce, and Douglas-fir are the primary hosts, though larvae have also been recorded from various pine species.

range
Found transcontinentally. Recorded throughout southern Canada and south to California and North Carolina, though absent from the central plains. ( Leidy and Neunzig 1986; Neunzig 2004).

quick link
http://entomology.museums.ualberta.ca/searching_species_details.php?s=4931



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Specimen Info
There are 10 specimens of this species in the online database
Map Distribution
Adult Seasonal Distributioncreate a collection histogram with specimens
Specimen List (10)
Related Links
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