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Photo#96760
Cross-grain eucnemid - Melasis pectinicornis

Cross-grain eucnemid - Melasis pectinicornis
Nashua, Hillsborough County, New Hampshire, USA
February 27, 2007
Size: 5 - 7 mm
I spotted a dead deciduous tree about 7-8 inches in diameter that had been worked over by one or more woodpeckers and figured they had been feeding on beetle larvae. The sapwood was punky and white-rotted. A few hatchet hacks later I saw both larval and adult eucnemids.

Even in the waning light I could tell this was a different species from the last eucnemids I found. Those I found Jan. 10 aligned their tunnels with the wood grain and were confined strictly to the soft white-rotted sections of a poplar. This was a different tree species and none of the tunnels followed the wood grain. All ran straight across, perpendicular to the wood grain.

The shape of these beetles was noticeably different as well. I hacked off plenty of wood chunks riddled with larvae and gathered a dozen or so adults as well (Sorry, woodpeckers).

Images of this individual: tag all
Cross-grain eucnemid - Melasis pectinicornis - male Cross-grain eucnemid - Melasis pectinicornis - male Cross-grain eucnemid - Melasis pectinicornis - male Cross-grain eucnemid - Melasis pectinicornis - male Cross-grain eucnemid - Melasis pectinicornis - male Cross-grain eucnemid - Melasis pectinicornis - male Cross-grain eucnemid - Melasis pectinicornis - female Cross-grain eucnemid - Melasis pectinicornis - female Cross-grain eucnemid - Melasis pectinicornis - female Cross-grain eucnemid larvae - Melasis pectinicornis Cross-grain eucnemid larvae - Melasis pectinicornis Cross-grain eucnemid larvae - Melasis pectinicornis Cross-grain eucnemid - Melasis pectinicornis Cross-grain eucnemid - Melasis pectinicornis Cross-grain eucnemid - Melasis pectinicornis Cross-grain eucnemid - Melasis pectinicornis Cross-grain eucnemid spreads wings - Melasis pectinicornis - male Cross-grain eucnemid larvae - Melasis pectinicornis Cross-grain eucnemid larvae - Melasis pectinicornis Cross-grain eucnemid larvae - Melasis pectinicornis Cross-grain eucnemid larvae - Melasis pectinicornis Cross-grain eucnemid larvae - Melasis pectinicornis

Identified by Dr. Jyrki Muona of Helsinki Finland,
leading authority on Eucnemidae.

I decided to link all these individuals because I collected them from a single source and it is easier for Web users to study, especially with respect to reading my field notes that are spread among the various view of different individual beetles.

Moved
Moved from Melasis.

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