Flag for Taxon: Condylostylus longicornis
| Flagger | Content Author | Content | Reason | Flag Created | Resolved by | Resolution |
|---|---|---|---|---|---|---|
| carnifex | Condylostylus longicornis |
many mis-identifications worldwide, supported by CV suggestion |
Aug. 12, 2021 12:14:54 +0000 | zdanko |
monitoring |
Comments
FWIW, the official species list of taxa documented as present in the province of Ontario maintained by the MNR (Canadian equivalent of your Departments of Wildlife / Fisheries etc) does not document the species as found here.
I'm working on a document of notes for this genus in the Nearctic region.
This species is distinctive as it has unmarked wings and entirely black legs, except for fore tibia of male and fore and mid tibia of female, which are yellow to yellow-brown, along with no long bristles on those tibiae. There are other features but they are not usually visible, and not necessary. The species only occurs from the Southern US to South America, Polynesia, and the Middle East.
@edanko your brother notified me already 😀
For anyone who is referred to this flag: please refer to my guide to the Sciapodinae of the Eastern US and Canada, and let me know if any questions come up: https://sites.google.com/view/flyguide
It would be nice to have here a list of typical characters that would allow a species ID (or vice versa excludes the ID as C. longicornis).
The contrast of the yellow fore tibia to the dark fore femur is to me the most obvious feature (yellow femurs readily exclude this species). The presence of a strong wing pattern also can be used to exclude this species.
From bugguide.net I see the hind legs are black, but I don't know if the hind tibia can also be yellow or brown in this species.
When it comes to range, John F. Carr stated in 2010 that it's northern range in the US would be NC, however, there are now many observations much further north, up to Canada, so did the range expand largely or are these observations mis-IDed?
Originally a neotropical species, it now also occurrs in Hawaii and SE Asia, just how far it has expanded its range is elusive to me and is probably not well studied (a 2017 publication reports it from the Arabic peninsula). Thus, in addition to correct the mis-IDs, it would also be interesting to look at those observations apparently 'out of range' that seem to show this species