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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » Aculeata - Ants, Bees and Stinging Wasps » Apoidea sans Anthophila – Apoid Wasps » Square-headed Wasps, Sand Wasps, and Allies (Crabronidae) » Square-headed Wasps (Crabroninae) » Trypoxylini » Trypoxylon » Subgenus Trypargilum (Trypoxylon Subgenus Trypargilum) » Trypoxylon collinum
Photo#405850
Pupa from tube nest 6/4/2010 - Trypoxylon collinum
Copyright © 2010 Beatriz Moisset

Pupa from tube nest 6/4/2010 - Trypoxylon collinum
Willow Grove, Montgomery County, Pennsylvania, USA
June 4, 2010
Size: 10 mm
It finally pupated; I checked periodically and they remained as larvae the whole winter. Only now when it is very hot they are getting ready to emerge. I kept all the tube nests outdoors, so I consider that the date is a reliable approximation of what happens in nature. I still have one nest kept outdoors, so I hope that those adults emerge when they are supposed to.
Side view with remnants of cocoon.

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Larvae inside paper tube nests. 9, 1, 2009 - Trypoxylon collinum Larvae inside paper tube nests - Trypoxylon collinum Larvae inside paper tube nests - Trypoxylon collinum Larvae inside paper tube nests - Trypoxylon collinum Larvae inside paper tube nests. 9, 1, 2009 - Trypoxylon collinum Larvae inside paper tube nests. 9, 1, 2009 - Trypoxylon collinum Larvae inside paper tube nests - Trypoxylon collinum Parasite on larva from paper tube nests.9/1/09 - Trypoxylon collinum Larva inside paper tube nests and parasite.11/13/09 - Trypoxylon collinum Larvae inside paper tube nests - Trypoxylon collinum Larva's unfinished spider meal. - Trypoxylon collinum Pupa from tube nest 6/4/2010 - Trypoxylon collinum Pupa from tube nest 6/4/2010 - Trypoxylon collinum Pupa from tube nest 6/4/2010 - Trypoxylon collinum Adult wasp from tube nest. 6, 21, 2010 - Trypoxylon collinum Adult wasp from tube nest - Trypoxylon collinum Adult wasp from tube nest - Trypoxylon collinum
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Contributed by Beatriz Moisset on 5 June, 2010 - 3:53pm
Last updated 20 February, 2019 - 10:53am

Moved
Moved from Trypoxylon.
… Matthias Buck, 10 August, 2010 - 4:43pm login or register to post comments

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