Diptera.info :: Identification queries :: Diptera (adults)
 Chaetorellia => Chaetorellia jaceae
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| Jessica |
Posted on 28-06-2024 19:08
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Member Location: Posts: 267 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 15:45 |
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| Nosferatumyia |
Posted on 29-06-2024 10:34
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 Member Location: Posts: 3545 Joined: 28.12.07 |
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 10:35 Val |
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| Jessica |
Posted on 04-07-2024 15:44
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Member Location: Posts: 267 Joined: 28.08.18 |
Hi, Sorry for the late answer ! And thank you very much for explanations |
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