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 Chrysotoxum cautum?
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| Jann Wuebbenhorst |
Posted on 20-05-2017 16:03
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Member Location: Northern Germany, Lower Saxony Posts: 565 Joined: 10.03.17 |
This Chrysotoxum was observed on 19-05-17 on gardenland within a hedge of Acer campestre an Crataegus sp. (Northern Germany, Lower Saxony). Can the species be determined? best wishes, Jann Jann Wuebbenhorst attached the following image:  [116.47Kb] |
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| Dukegraffio |
Posted on 21-05-2017 10:16
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Member Location: Cesena Italy Posts: 47 Joined: 26.10.16 |
Female: unique among European Chrysotoxum in possessing a longitudinal, median, membranous strip on abdominal tergite 6, which effectively divides this tergite into two parts  |
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| Jann Wuebbenhorst |
Posted on 21-05-2017 17:28
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Member Location: Northern Germany, Lower Saxony Posts: 565 Joined: 10.03.17 |
Thank you very much for the information!  |
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| treebeard |
Posted on 21-05-2017 19:22
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Member Location: Slovakia Posts: 610 Joined: 13.08.13 |
I think that usually the patern of yellow markings on tergites is very distinctive ina case of Ch, cautum. The same as we can see on your picture. My English is not good enough to describe it, but I agree with your ID |
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| Jann Wuebbenhorst |
Posted on 27-05-2017 13:01
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Member Location: Northern Germany, Lower Saxony Posts: 565 Joined: 10.03.17 |
Tank you also, treebeard! Do you think that the following two (photo taken on 07-07-16 in a village nearby) are also C. cautum? Jann Wuebbenhorst attached the following image:  [79.58Kb] |
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but don't see the image in the post.