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A tree in an ancient forest sits covered in moss , lichens and craggy barque — when suddenly , a chunk of that bark begin to scuttle around .
But it ’s not the bark that ’s scurrying ; it ’s a bizarre little creature calledStegastochlidus saraemcheana , a newfound genus and mintage of cylindrical barque beetle . scientist recovered the brute , which looks like a walk scouring brush , from 100 - million - year - old amber collected in the Hukawng Valley of northern Myanmar . That dates the mallet back to theCretaceous , the flow between 145.5 million and 65.5 million year ago .

This image shows a top view of the newfound cylindrical bark beetle Stegastochlidus saraemcheana, with its head on the left side.
" The beetle must have spent its lifetime among moss , lichens andfungi , either attach to tree trunks or on the forest floor , " study co - author George Poinar Jr. , a paleobiologist and entomologist at Oregon State University , said in a statement . " He is hiding under a striking camouflage of his own devising , allow him to blend into a mossy desktop . "
This " outstanding camouflage " earned the beetle its genus name , from the Greek give-and-take " stegastos , " meaning covered , and " chlidos , " think of ornament , the authors wrote . ( Thetextbook " Composition of Scientific Words"(Washington , 1954 ) specify the similar Son " chlidon " as signify " bracelet , bobbysock or ornament . " )
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This image shows a side view ofStegastochlidus saraemcheana,with its head on the left and its midlegs and hindlegs visible underneath.
This jagged ornament makes the beetle look less like an insect and more like a glob of tree bark . In their theme , published Dec. 15 in the journalBiosis : Biological Systems , the source helpfully point out which close of the odd bug is its head and which is its body .
From a top view , the head juts off from the tubular body as a rounded , tuft - like body structure covered in spikes . Two segmented antennae stretch out from the head and end in a golf-club - same shape . From a side view , the head sits at one end of the mallet , with the forelegs and midlegs just behind it . The hindlegs sit somewhat far back on the body , in front of the mallet ’s cylindrical abdomen .
The whole bug measures just 0.17 inch ( 4.2 millimeter ) long , but it crams more than 100 spike - like structures onto its back and straits . These spikes likely help the beetle intermix in with moss , lichens and fungus kingdom , the authors wrote .

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" A close association with fungi is indicated by strands of fungal spores , get laid as conidia , tie to the beetle ’s cuticle , or outer covering , " Poinar said in the argument . A span of epenthetic mites were also ascertain latch onto the mallet by their mouthpart , the authors note . While snacking on the mallet some 100 million age ago , these mites also became trapped in gold .
The beetle ’s pointed mouthpart hint at a carnivorous diet , so the bug in all likelihood prey on other invertebrate , the authors note . With such a narrow eubstance , the beetle could easily slip into veranda — vertical anatomical structure establish in woodwind by other beetles — and potentially bolt up the pupa and larvae house there .
Originally published on Live Science .
















