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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » "Symphyta" - Sawflies, Horntails, and Wood Wasps » Horntail Wasps (Siricidae) » Tremecinae » Xeris
Photo#1719669
Xeris sp? Siricidae - Xeris - female
Copyright © 2019 Isidro

Xeris sp? Siricidae - Xeris - Female
Forest Hills, Suffolk County, Massachusetts, USA
September 3, 2018
Size: smaller than Tremex
Pinned specimen on exhibit at Harvard Museum of Natural Sciences. Unidentified. After a search in BugGuide I think that it might belong to genus Xeris, due to long oviscapt and short wings compared with abdomen. But I don't know which species is it, or if it's really a Xeris or another horntail genus. Label also says "Hemlock", pressumably being the tree upon which the insect was captured.
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Contributed by Isidro on 30 August, 2019 - 3:49am
Last updated 13 March, 2021 - 4:21pm

Moved
Moved from Horntails.
… Jonathan Hoskins, 13 March, 2021 - 4:21pm login or register to post comments

Siricidae
Certainly Xeris. Had to dig up a key to world species, which provides the (very tentative) result of Xeris spectrum. The colouration is very similar to European specimens of that species imaged on BOLD.
… Spencer K. Monckton, 9 September, 2019 - 2:16pm login or register to post comments

 
Thanks a lot, Spencer! I was
Thanks a lot, Spencer! I was unable to identify myself because colouration was different from American species - as you can see, the specimen was caught in Massachusetts -. But probably the colouration is due to fading of an old specimen - many other insects in the same boxes are faded.

Edit: Hmmm, not possible to be fading because the specimen was caught only a year ago. It must be the most recent specimen of these boxes! (some are from more than a century ago!)
… Isidro, 9 September, 2019 - 11:28pm login or register to post comments

 
HMNH specimen
Hi there, I work in Entomology at the MCZ, associated with these displays, and it's most likely this specimen is actually from 1918, not 2018 -- I don't think these display boxes have been updated in over a decade. So likely the coloration is due to fading. Cheers!
… Rachel L. Hawkins, 4 April, 2022 - 3:40pm login or register to post comments

 
No problem!
My guess is there's sufficient colour variation to muddy the waters! Somebody with a LOT more experience looking at Siricidae than me would likely have a good idea as to which species this really is.
… Spencer K. Monckton, 10 September, 2019 - 9:58am login or register to post comments

Moved
Moved from ID Request.
… Bob Zuparko, 1 September, 2019 - 4:41pm login or register to post comments

Moved
Moved from ID Request.
… Bob Zuparko, 1 September, 2019 - 4:41pm login or register to post comments

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