ASIAN DEFOLIATORS: Dendrolimus spp. (Lepidoptera: Lasiocampidae) Dendrolimus sibiricus Dendrolimus pini Dendrolimus punctatus ♂ ♂ ♂ form 1 form 2 PDIL, Bugwood.org © ♀ ♀ ♀ female female form 1 form 2 D. sibiricus D. Siberian silk moth pine tree lappet moth Masson pine moth Male wingspan: 40–60 mm; female: 60–80 mm Male wingspan 50–70 mm; female: 70–90 mm Wingspan: 50–80 mm; females larger Key features include two dark, notched stripes Similar to D. sibiricus but has prominent brown bands Wings mostly uniform brown, with line nearest on the wings, which are rather indistinct due located at the base of the forewing and spanning the outer edge of forewing unconnected, more to various amounts of gray and brown scales. A wing at roughly ¾ of the way to the edge. Brown bands dotted rather than mostly continuous as in D. white spot is usually present near the base of the are especially prominent due to the lighter gray coloration sibiricus and D. pini. forewing. Both males and females are similar but between bands. A white spot is present on the forewings, females are larger, with broader wings. as in D. sibiricus. All dark markings are subdued in form 2. sharpening observation skills This photo guide is part of a diagnostic set. Visit www.FirstDetector.org for more SHARPENING OBSERVATION SKILLS materials. ASIAN DEFOLIATORS: Dendrolimus NATIVE look-alikes Dendrolimus sibiricus larva (Lepidoptera: Lasiocampidae) native male look-alikes © John Ghent, US-FS, Bugwood.org 1 2 3 some native laval look-alikes 4 5 Tolype laricis © CAES archive, Bugwood.org Artace cribrarius 6 7 8 © Sean McCann, Bugguide.com Gloveria gargamelle 9 10 1. Caloecia juvenalis, 2. Caloecia entima, 3. Dicogaster coronada, 4. Quadrina diazoma, 5. Coloradia pandora, 6. Gloveria gargamelle, 7. Gloveria arizonensis, 8. Gloveria medusa, 9. Lapara bombycoides, 10. Citheronia sepulcralis Funding for the SHARPENING OBSERVATION SKILLS project was provided by the USDA 10201 Farm Bill, cooperative agreement 13-8236-0984-CA. © John Ghent, US-FS, Bugwood.org.