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Species Page - Dioryctria monticolella
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scientific name    Dioryctria monticolella    

habitat
Low elevation dry forests dominated by pines, particularly western white pine.

seasonality
Adults fly May, June and August.

identification
Wingspan: 12.0-12.5mm. Raised scales present. Forewing primarily black and white with some brownish scaling, though wings appear generally faded. Male genitalia: Uncus constricted and expanded laterally. Valve with prominent hooked apical projection and accessory spine. Vesica with large cornutus and many smaller cornutii. Female genitalia: Ductus bursa elongate, with posterior region narrow and widening anteriorly. Fine longitudinal wrinkles restricted to posterior region of bursa. Similar to D. tumicolella, though with more extensive brown scaling in subbasal area and after postmedial line. D. contortella, even more similar, is separated based on minor color variations in the forewing, though host association is the only definitive method for separation.

life history
Larvae bore under bark in cambial layer of host. Larvae may preferentially attack wounds in bark.

diet info
Western white pine ( Pinus monticola) only recorded host, species described as host specific.

range
Southern British Columbia but may extend further south (Mutuura et al 1969).

quick link
http://entomology.museums.ualberta.ca/searching_species_details.php?s=4945



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