Diptera.info :: Identification queries :: Diptera (adults)
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 Chaetorellia => Chaetorellia jaceae
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| Jessica |
Posted on 28-06-2024 20:08
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Member Location: Posts: 246 Joined: 28.08.18 |
Hello, I saw this male on a Centaurea jacea. So may be Chaetorellia jaceae ? But in France we have Chaetorellia acrolophi, Chaetorellia hestia, Chaetorellia loricata and Chaetorellia succinea... How can I distinguish them ?  Jessica Joachim : France : Mazères : 09270 : 28/06/2024 Altitude : 243 m - Taille : 5-6 mm environ Réf. : 345128 Edited by Jessica on 04-07-2024 16:45 |
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| Nosferatumyia |
Posted on 29-06-2024 11:34
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 Member Location: Posts: 3449 Joined: 29.12.07 |
ID is difficult, indeed. There is an article by White and Marquardt (1989), with a key, which has not been updated since then. Reddish vittae on mesonotum and 4 pairs of black dots are in C. jaceae and C. acrolophi, but the latter, as well as C, australis is generally smaller and has more pependicular 2nd and 3rd crossbands (oblique in C. jaceae). More precise ID requires females, dissections and measurements, or exact association with host plant (C. jacea). So this is certainly C. jaceae. Edited by Nosferatumyia on 29-06-2024 11:35 Val |
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| Jessica |
Posted on 04-07-2024 16:44
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Member Location: Posts: 246 Joined: 28.08.18 |
Hi, Sorry for the late answer ! And thank you very much for explanations |
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