| Diprion similis (Hartig, 1834) |
| Synonyms: Diprion eremita, Diprion simile, Lophyrus dorsatus, Lophyrus eremita, Lophyrus similis, Neodiprion similis, Tenthredo dorsata, Tenthredo eques, Introduced Pine Sawfly (in North America), White Pine Sawfly (in North America) |
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Diprion similis is a pine sawfly native to Europe and most of temperate Asia (including Eastern Siberia and China); accidentally introduced into North America in the early 20th century, and has since spread to much of the eastern United States and Canada. Adults are 7-10 mm long. The male is black (the underside of the abdomen is reddish-brown), with feathery antennae; the female is black and yellow, with serrate antennae. The larvae are marbled yellow-green with black stripes. Two generations a year (April to September). In its natural range, the larvae feed on the needles of pine, including Pinus sylvestris, P.mugo, and P. sibirica. In North America, it prefers Eastern White Pine (Pinus strobus).
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