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Photo#1592779
Stem borer, Xerophyllum - Melanagromyza

Stem borer, Xerophyllum - Melanagromyza
Snow Lake Trail, Alpine Lakes Wilderness, King County, Washington, USA
September 17, 2018

Images of this individual: tag all
Stem borer, Xerophyllum - Melanagromyza Stem borer, Xerophyllum - Melanagromyza Stem borer, Xerophyllum - Melanagromyza Stem borer, Xerophyllum - Melanagromyza

If indeed Melanagromyza
then it is clearly (from the photo) one of the species in which the posterior spiracular plates do not each surround a black horn (uncommon for the genus, according to Spencer and Steyskal 1986). See, for instance, the posterior spiracles figured for M. ruelliae and M. caerulea on p. 344 in (1) (although I don't think it's either of those species).

As far as I can tell, this would also be a new host family record for Melanagromyza.

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