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Mason wasp (female)

Symmorphus sp.


Small, slender wasps, about 8-10 mm in body length, marked as shown. Note wings are folded longitudinally.


Several females nesting in old beetle borings in a cottonwood log near stream. Habitat is riparian with open fields, scattered trees, milkweed, cattails, etc.


The wasps were being harassed by cuckoo wasps (Chrysididae).

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1 Comment

gatorfellows 9 years ago

nice catch :)

Spotted by

Fountain, Colorado, USA

Spotted on Jun 2, 2013
Submitted on Jun 12, 2013

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