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New Pest Response Guidelines - aphis - US Department of Agriculture

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Identification<br />

Pupae<br />

Male pupae are 19 to 26 mm long, while females are larger at 26 to 33 mm in<br />

length (CABI, 2011b). Pupation occurs in hairy cocoons, attached to needles<br />

and small branches (Billings, 1991). In other respects, the pupae are not well<br />

described in the literature and would not be diagnostic to identify this species.<br />

Figure 3-8 Cocoons containing pupae <strong>of</strong> Masson pine caterpillar found on the<br />

tips <strong>of</strong> pine branches (William M. Ciesla, Forest Health<br />

Management International, Bugwood.org).<br />

12/2012-01 Dendrolimus Pine Moths 3-9

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