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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles (Polyphaga) » Series Cucujiformia » Fungus, Bark, Darkling and Blister Beetles (Tenebrionoidea) » False Flower Beetles (Scraptiidae)
Photo#39846
Bulb-tailed larva
Copyright © 2005 Jim McClarin

Bulb-tailed larva
Dona Ana County, New Mexico, USA
December 27, 2005
Size: 6.2 mm maybe
Found in leaf litter beneath large pile of droppings at base of oak tree in rocky gully on lower slopes of Organ Mountains. (The droppings looked very much like caterpillar droppings and there were lots of remains of long-furred caterpillars under the tree as well as one coccoon made of the same fur. My brother tells of finding signs of similar caterpillar infestations. I'm guessing the dead ones were wasp-parasitized.)

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Bulb-tailed larva Bulb-tailed larva Bulb-tailed larva
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Contributed by Jim McClarin on 28 December, 2005 - 4:58pm
Last updated 9 May, 2006 - 6:16am

They like sandy soils.
I was collectiong in Wisconsin in an area called Lone Rock that has really sandy soil and took a big leaf litter sample, found maybe 15 of these guys in there. I gave them away to all my classmates in Dan Young's Immature Insects class and donated my collection to the Insect Research Collection at the UW. Dan actually wasn't suprised I collected them from that area. They're cute little guys :) I imagine you have to get them at just the right time of year too.
… Natalie Hernandez, 1 March, 2010 - 11:32pm login or register to post comments

 
Thanks, Natalie.
Dan is my most frequent go-to guy for larvae. I'm glad he's spreading his knowledge around ;-)

The scraptiid larvae I've found in New Hampshire have all been under bark but this one was certainly near sandy soil if not actually in it.
… Jim McClarin, 2 March, 2010 - 4:30am login or register to post comments

wow
Maybe not so much so in New Mexico, but on the East Coast these are super rare. I think I read that only a handful of Scraptiid larvae are in collections anywhere. That weird fleshy terminal appendage that might be the 10th abdominal segment apparently falls off right before pupation and nobody knows why.
… Keith Bayless, 10 May, 2006 - 2:49am login or register to post comments

 
Hi Kieth,
I appear to have found an East Coast scraptiid larva.
… Jim McClarin, 28 March, 2008 - 10:59am login or register to post comments

 
Alas, mine is not in a collection (except digitally).
I tried to rear it, but it either died and vaporized or escaped from the pill sorter cubicle I had it in.
… Jim McClarin, 10 May, 2006 - 5:16am login or register to post comments

Scraptiidae
Dan Young has identified this larva as a scraptiid. Interesting coincidence that on the very day I add adult images to one beetle family (Bori*dae) that has been represented only by larval images for about a year I find we have a new beetle family for bugguide represented only by larval images.
… Jim McClarin, 9 May, 2006 - 6:08am login or register to post comments

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