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Unequal antennae
#1 Print Post
Posted on 29-06-2021 17:19

Posts: 95
Joined: 20.12.20

Do you think this is antenna damage, or are the unequal antenna caused by something else? Biting midge, Austin, Texas, USA.
Tony Irwin
#2 Print Post
Posted on 29-06-2021 20:42
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Location: Norwich, England
Posts: 6967
Joined: 19.11.04

Forcipomyia bipunctata (Ceratopogonidae). It appears to have a developmental problem. It's a female, and the right antenna is the normal size, but the left one is reduced for some reason. Males have much bushier antennae, so it's not a gynandromorph.
Tony Irwin
#3 Print Post
Posted on 29-06-2021 22:15

Posts: 95
Joined: 20.12.20

Yeah, that's what I suggested on FB, although I didn't know the iD of the fly. I suggested a male looks more like this, but I don't know if this is the same species or not. ... also photographed at the same location but a different date.
Edited by victorengel on 29-06-2021 22:17
Tony Irwin
#4 Print Post
Posted on 30-06-2021 09:37
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Location: Norwich, England
Posts: 6967
Joined: 19.11.04

Yes, that looks like a male bipunctata
Tony Irwin
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