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 Tachinidae but which species? => Estheria cristata
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| Volker |
Posted on 31-07-2022 11:53
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Member Location: Posts: 324 Joined: 15.05.08 |
Hello, I saw this fly several times on mint today. Is it possible to identify the species? By clicking on the pictures -> enlargement Greetings, Volker   
Edited by Volker on 08-08-2022 16:23  |
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| eklans |
Posted on 31-07-2022 12:32
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Member Location: Posts: 3337 Joined: 11.11.18 |
Hi Volker, this is surely a female of the Tachinidae - my first ideas failed, but I'm still searching and if you change the title of your thread, help will come soon 
Greetings, Eric Kloeckner |
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| eklans |
Posted on 31-07-2022 13:06
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Member Location: Posts: 3337 Joined: 11.11.18 |
My first suspicion will be my last: Linnaemyia cf. tesselans. But I'm not sure as the mouth is not as protruding as it should be. Maybe it's because the proboscis is working...
Edited by eklans on 31-07-2022 13:07 Greetings, Eric Kloeckner |
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| Zeegers |
Posted on 31-07-2022 15:25
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Member Location: Posts: 18446 Joined: 21.07.04 |
Female Estheria cf, cristata ( try to figure out the DC !) Theo |
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| Volker |
Posted on 31-07-2022 15:33
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Member Location: Posts: 324 Joined: 15.05.08 |
Hello Eric and Theo, first of all, thank you for your opinions. I would then shortlist Estheria cf, cristata, it has the greater resemblance to my specimen. What is meant by DC -> dorso-central bristles? Do you mean what I have marked in the picture? Greetings, Volker Edited by Volker on 31-07-2022 16:09 |
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| Zeegers |
Posted on 31-07-2022 16:12
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Member Location: Posts: 18446 Joined: 21.07.04 |
Yes, it is an distinctive feature vs. E. bohemani. Theo |
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| Volker |
Posted on 31-07-2022 16:35
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Member Location: Posts: 324 Joined: 15.05.08 |
Hello Theo, then may I refer to my specimen as Estheria cristata? Greetings, Volker |
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| Zeegers |
Posted on 31-07-2022 18:19
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Member Location: Posts: 18446 Joined: 21.07.04 |
I don’t know, I can’t establish the number of post DC. Maybe you can, on the hi-res. Theo |
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| Volker |
Posted on 01-08-2022 06:07
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Member Location: Posts: 324 Joined: 15.05.08 |
Hello Theo, I counted 4 bristles in the middle and 2 on each side. I hope you mean these bristles? Greetings, Volker |
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| Sundew |
Posted on 01-08-2022 13:13
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 Member Location: Posts: 3890 Joined: 28.07.07 |
Volker, you have been a forum member since 2008 - you should already know better! Why don't you use the glossary https://diptera.i...mp;cat_id= and look for "dorsocentral setae" and "postsutural"? This one is also great: http://www.tachin...nition.htm. Your last picture shows that you really have to deal with the terms - that's your task  , the experts do not have time to teach you.Then, you got already 2 alternatives: E. cristata and E. bohemani. The first thing I do in such cases is to go into the forum search and look for all older threads that contain information about these species and compare the pictures. Especially in the old threads there is much more informative discussion of the characters. You can learn an enormous lot - get active! And, by the way, I see 3 postsutural dorsocentrals, so I'd go for E. cristata, too  .Best wishes, Sundew |
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| Sundew |
Posted on 01-08-2022 13:26
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Member Location: Posts: 3890 Joined: 28.07.07 |
And one more remark (as I advised to learn from older threads): Even experts can make mistakes. In https://diptera.i...d_id=96278 my fly was said to be E. cristata because of 4 ps dc, but cristata has 3. I add the key from https://tachinida...igures.pdf. (Now it's my problem with my fly species - the characters "scutellum yellow" and "4 ps dc" do not match... You are luckier, your's should have a yellow scutellum, and it has!) Edited by Sundew on 01-08-2022 13:35 |
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| Volker |
Posted on 01-08-2022 14:43
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Member Location: Posts: 324 Joined: 15.05.08 |
Hello Sundew, yes, I've been a member of this forum for many years, but I didn't use to be a frequent visitor. I must admit, I still have a lot to learn about the distribution of hair on the body and I often have problems with abbreviations of terms and words. I am also still learning English, thus it's not always that easy for me. Your references to the two sites are very helpful and I will look at them carefully. In any case, thanks for the determination and your tips. Greetings, Volker Edited by Volker on 01-08-2022 14:43 |
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