|scientific name Dioryctria tumicolella |
Dry, open forest dominated by Ponderosa pine Pinus ponderosa.
Adults emerge from late July - mid August.
Wingspan: 12.5-15.0 mm. Raised scales present. Forewing primarily black and white, with only a few brownish-red scales in the subbasal area. 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. monticolella and D. contortella, though with darker forewings and few brownish-red scales in subbasal area and after postmedial line.
Larvae bore in blister rust swellings on host. Little to no pitch is produced at entrance to gallery (Mutuura et al 1969b).
Larvae have been reared from blister rust swellings (Peridermium spp.) on Ponderosa pine (Pinus ponderosa) (Mutuura et al 1969b).
Presently, only described from southern British Columbia, though suggested thought to occurs throughout the Northwest (Neunzig 2004).
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