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Insects - Bark Beetles and Phloem Feeding Insects

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12 Images of 8 Subjects View Subject List View Image Details View Thumbnails

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Image Subject Name Scientific Name Description
2253078 western pine beetle Dendroctonus brevicomis old damage causing bark to fall off tree
2253082 pine engraver Ips pini
1241464 pine engraver Ips pini Group kill.
1241477 western balsam bark beetle Dryocoetes confusus Trees killed typically have bright red crowns for a year or two after death.
1241474 fir engraver Scolytus ventralis Dead patches of cambium under roughened bark may indicate patch attack.
1241472 Douglas-fir beetle Dendroctonus pseudotsugae Douglas-fir beetle often kills groups of adjacent trees in successive years. Older dead with little remaining foliage are commonly found near recent mortality. Groups such as this are a good place to look for fresh attacks which will have boring dust on stems but green crowns.
1241454 western pine beetle Dendroctonus brevicomis Egg galleries showing characteristic serpentine pattern.
1241455 western pine beetle Dendroctonus brevicomis Larvae feeding in bark.
1241459 mountain pine beetle Dendroctonus ponderosae Gallery has a 'crook" at the lower end.
1241451 red turpentine beetle Dendroctonus valens Close-up of an adult beetle.
1241452 red turpentine beetle Dendroctonus valens Gallery with a group of small larvae.
1241465 Ips engraver beetles Ips spp. Adult beetle with depression and spines on end of elytra.

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