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Diptera.info :: Family forums :: Asilidae Forum
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Dysmachus trigonus?
johnes81
#1 Print Post
Posted on 09-07-2018 16:57
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Location: Berlin, Germany
Posts: 1980
Joined: 15.10.16

male - 15.5mm - Berlin - June 2017

I am looking through old photos today and i noticed this Asilidae. I cannot match it to anything exactly. I think that Dysmachus trigonus looks similar but i am not sure. I could use some help with this one. If this is not Dysmachus, then a genus will be nice to know.

Thank you for your time.
johnes81 attached the following image:


[50.88Kb]
John and Nini. Naturalists not experts.
 
Quaedfliegh
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Posted on 09-07-2018 21:35
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Location: Tilburg Netherlands
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I think you are right with D. trigonus. Although I can't see everything very good the way the wings are held by the creature is also typical for trigonus
Edited by Quaedfliegh on 09-07-2018 21:39
Greetings,

Reinoud

Field guide to the robber flies of the Netherlands and Belgium: https://www.jeugdbondsuitgeverij.nl/product/field-guide-to-the-robberflies-of-the-netherlands-and-belgium/

https://www.nev.nl/diptera/
 
Mariastraat 12
johnes81
#3 Print Post
Posted on 10-07-2018 10:36
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Location: Berlin, Germany
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Thank you, Reinoud.

I will attach another photo here for clarity. I have no experience with Dysmachus - and many other Asilidae genera - so i am hoping that Dysmachus is correct. trigonus is the only Dysmachus recorded for Berlin, so i am able to suggest a species. Germany also has Dysmachus fuscipennis and Dysmachus praemorsus recorded.

Maybe this new photo is helpful for verification. I have not examined the specimen. Is there anything in particular that you need to see?

Thank you for your time,
John
johnes81 attached the following image:


[52.04Kb]
Edited by johnes81 on 10-07-2018 10:38
John and Nini. Naturalists not experts.
 
Quaedfliegh
#4 Print Post
Posted on 10-07-2018 11:59
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Location: Tilburg Netherlands
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This is D. trigonus. D fuscipennis has strong bristles on the ventral side of femur 1, a longer abdomen and differently shaped genitalia. D. praemorsus and Didysmachus picipes also have different shaped genitalia.
Greetings,

Reinoud

Field guide to the robber flies of the Netherlands and Belgium: https://www.jeugdbondsuitgeverij.nl/product/field-guide-to-the-robberflies-of-the-netherlands-and-belgium/

https://www.nev.nl/diptera/
 
Mariastraat 12
johnes81
#5 Print Post
Posted on 10-07-2018 21:43
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Location: Berlin, Germany
Posts: 1980
Joined: 15.10.16

Thank you, Reinoud. I appreciate your time and expertise. I also appreciate the information about D. fuscipennis, D. praemorsus and Didysmachus picipes. I've made a text file with notes.

I will try to examine the specimen soon. I've just been very busy lately.

I hope that you have a pleasant night Smile
John and Nini. Naturalists not experts.
 
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