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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Twisted-winged Insects (Strepsiptera) » Xenidae » Xenos » Xenos bicolor
Photo#516820
Stylopid pupa - Xenos bicolor - male
Copyright © 2011 Jeff Gruber & UW-Madison Dept. of Entomology

Stylopid pupa - Xenos bicolor - Male
Huachuca Mountains, Cochise County, Arizona, USA
September 23, 2010
Heavily stylopized wasp landed on some vegetation in evergreen oak-grassland habitat, Upper Sonoran zone, (5147ft). Wasp's abdomen contained 3 male pupae, 1 empty male puparium, and 2 female stylopids. I kept the wasp alive in hopes that the remaining males would emerge. The day after collection, 2 adult males had emerged. Will post pics of one of these later.

All pics taken with automontage system. Actual montaging done with CombineZP.

I believe the wasp is Mischocyttarus navajo. Based on this host species, I believe the stylopids are probably Xenos kifunei Cook and Mathison.

Images of this individual: tag all
Stylopid pupa - Xenos bicolor - male Stylopids - Xenos bicolor - male - female Vespid - Mischocyttarus navajo - male Vespid - Mischocyttarus navajo - male
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Contributed by Jeff Gruber on 16 May, 2011 - 8:39pm
Last updated 3 March, 2023 - 3:22pm

Moved
Moved from Xenos.
… Jonathan Hoskins, 3 March, 2023 - 3:22pm login or register to post comments

Moved
Moved from Stylopidae.
… Jonathan Hoskins, 16 September, 2021 - 10:25am login or register to post comments

Re: Host species
To cross-post on both records: the reported host for X. kifunei is Polistes comanchus navajoe, not a species of Mischocyttarus. At present, none of our species of Mischocyttarus has any recorded strepsipteran parasites, and the only species in the genus that does as of Cook's annotated catalog (2019) is from Bolivia. But given that the host is a polistine species, it seems reasonably certain that it was stylopized by some species of Xenos.

One point of concern in any case is that since the co-author of X. kifunei misidentified the specimen in the other BugGuide record, it may be possible that the original host was misidentified as well. That might could be verified since the host specimen was deposited in the University of Arizona Insect Collection (UAIC) by the authors.
… Jonathan Hoskins, 16 September, 2021 - 10:24am login or register to post comments

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… Matthias Buck, 19 May, 2011 - 12:08pm login or register to post comments

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… Matthias Buck, 19 May, 2011 - 12:05pm login or register to post comments

very cool
looking forward to seeing the male
… Brad Barnd, 16 May, 2011 - 10:09pm login or register to post comments

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