Some Kind of Wasp? - Crioscolia alcione

Crioscolia alcione

Crioscolia was elevated to genus by Bradley in 1950. Crioscolia and Trielis were previously considered subgenera of Campsomeris (before Bradley's paper).

Moved from Trielis alcione.

… George Waldren, 12 September, 2009 - 9:33pm

Moved

Moved from Trielis.

… Eric R. Eaton, 12 February, 2008 - 3:02pm

Crioscolia alcione

I also believe this to be Criosolia alcione, because of the abdominal tergites are black with yellow markings and importantly the elevated "ridge" between the antennae as seen in one of the images.
W.P. Mackay, 1987, The Southwestern Naturalist 32(3) 357-362.

… texhoma, 31 January, 2008 - 12:45pm

Scoliid Wasp - female

A member of the Campsomerinae subfamily.

… Richard Vernier, 8 August, 2007 - 5:50am

Scoliid Wasp

Thank you Richard. Is this Campsomeris plumipes?

… Sharon Wright, 8 August, 2007 - 3:50pm

Female.

Lovely shots, Sharon! I remember collecting these in Oregon and I believe I eventually identified them as Crioscolia alcione (aka Trielis alcione). Very similar to Campsomeris. Look for the males, you won't believe its the same species:-) Keep up the great work in the Northwest!

… Eric R. Eaton, 8 August, 2007 - 4:36pm

Eric,

would it be appropriate to create a guide page for that species (T. alcione) or should it be left at genus level?

… Nick Fensler, 16 August, 2007 - 8:01pm

Thanks

Thank you both for your comments. I'm a novice at ID. Just curious, Eric, how the sexes differ and also if the species is common outside of our state.

… Sharon Wright, 9 August, 2007 - 12:40pm

Interesting

The strong sexual dimorphism you point out is also a distinctive featurs of Palaearctic genus Colpa (C. sexmaculata is the only common Campsomerinae left in France, where it inhabits fixed dunes near the Mediterranean and Golf of Biscaya). And Colpa was formerly classed in Trielis too. No wonder this Oregon specimen reminded me immediately of our own species....

… Richard Vernier, 9 August, 2007 - 4:13am