Undescribed species of Xylomya (Northeastern)
This species is diagnosed by the two longitudinal yellow stripes on the scutum, disconnected sutural and humeral spots on the scutum, and a black abdomen with narrow, uniform yellow apical bands with large yellow spots on the side of the first segment.
https://www.inaturalist.org/observations/52069034
https://www.inaturalist.org/observations/21163268
https://www.inaturalist.org/observations/129997735
https://www.inaturalist.org/observations/126150006
https://www.inaturalist.org/observations/29201520
https://www.inaturalist.org/observations/123450844
https://www.inaturalist.org/observations/88863882
https://www.inaturalist.org/observations/52356940
https://www.inaturalist.org/observations/133986720
https://www.inaturalist.org/observations/168376125
https://www.inaturalist.org/observations/170716678
評論
@edanko @phycus
great that you found all of them! very helpful!
I'm glad!
These will get stuck at couplet 4 of the key due to the scutum being darker than in normal terminalis: https://sites.google.com/view/flyguide/species-guides/xylomyidae/key-to-xylomya?authuser=0
See comment here:
https://www.inaturalist.org/observations/52069034#activity_comment_f5069b9f-4b2b-4689-bfeb-e2db246a68c8
What do we think about this as a possible intermediate between normal americana and the above form? https://bugguide.net/node/view/527477/bgimage
I'm more inclined to call that americana due to more red on the abdomen and black restricted to the second tergite. Also the red on the mid tibia; the undesc. sp. has entirely yellow mid tibia, it seems.
Does the "undescribed species" key to X. americana in Webb 1984 based on the 8th flagellomere?
If I recall correctly from looking at those specimens, there was macrosetae, and I think it was white, strangely... might be remembering wrong. I'll check again this Sunday.
The note from Woodley on the pin did mention something about the 8th flagellomere.
新增評論