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 Possible robberfly
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| leonvdn |
Posted on 13-01-2015 16:12
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Member Location: Posts: 56 Joined: 01.06.14 |
Its a stab in the dark but I can't see any Irish diptera with this body shape other then Asilidae. Would I be thinking correctly? Seen in Cork, Ireland. There are only 3 irish species, at least one of which doesn't occur in county Cork.
leonvdn attached the following image:  [51.92Kb] |
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| leonvdn |
Posted on 13-01-2015 16:12
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Member Location: Posts: 56 Joined: 01.06.14 |
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leonvdn attached the following image:  [51.07Kb] |
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| piros |
Posted on 13-01-2015 16:21
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Member Location: Szeged, Hungary Posts: 1763 Joined: 04.01.12 |
Dioctria hyalipennis (male), I think. Greetings, Henrik |
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| leonvdn |
Posted on 13-01-2015 16:34
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Member Location: Posts: 56 Joined: 01.06.14 |
That one is not known for Ireland. Records exist only for Philonicus albiceps Neoitamus cyanurus Machimus cowini (extremely rare) Could it be one of those Henrik? |
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| John Carr |
Posted on 13-01-2015 17:59
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 Member Location: Massachusetts, USA Posts: 9841 Joined: 22.10.10 |
leonvdn wrote: That one is not known for Ireland. Records exist only for Philonicus albiceps Neoitamus cyanurus Machimus cowini (extremely rare) Could it be one of those Henrik? I find it hard to believe there are only three species of Asilidae in Ireland. Dioctria hyalipennis is a widespread and adaptable species. It is common in North America, having been introduced from Europe. |
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| leonvdn |
Posted on 13-01-2015 18:15
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Member Location: Posts: 56 Joined: 01.06.14 |
Well it is an under recorded group here in Ireland no doubt but if its common in Europe it seems rather unlikely that it would go unnoticed here. Or am I wrong? The list of Asiloidea in Ireland. Bee, stiletto and robber flies. As per http://www.dipteristsforum.org.uk/ It should be noted that Ireland generally has a low biodiversity compared to most of Europe. Bombylius canescens Bombylius major Villa modesta Phthiria pulicaria Acrosathe annulata Dialineura anilis Thereva bipunctata Thereva nobilitata Scenopinus fenestralis Scenopinus niger Machimus cowini Neoitamus cyanurus Philonicus albiceps |
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| piros |
Posted on 13-01-2015 19:16
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Member Location: Szeged, Hungary Posts: 1763 Joined: 04.01.12 |
I can only say that this is Dioctria for sure. |
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| leonvdn |
Posted on 13-01-2015 19:24
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Member Location: Posts: 56 Joined: 01.06.14 |
Thanks Piros. I will see if I can contact someone here in Ireland and send them the info, a new species for Ireland is worth noting after all. |
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| sd |
Posted on 13-01-2015 22:26
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Member Location: Suffolk, UK Posts: 892 Joined: 11.10.07 |
Hi, a very interesting record, I see you have posted on the Dipterists Forum website, also you could mention it on the following Recording Scheme http://www.brc.ac.uk/soldierflies-and-allies/ regards, Steve |
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| Quaedfliegh |
Posted on 21-01-2015 11:07
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 Member Location: Tilburg Netherlands Posts: 2198 Joined: 18.05.10 |
This is Dioctria hyalipennis/baumhaueri
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/ |
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| Steve Crellin |
Posted on 21-01-2015 14:41
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Member Location: Isle of Man Posts: 41 Joined: 01.09.04 |
Sitting where it does, it's interesting to compare the Irish list of asilids to the one for the much smaller Isle of Man. We have : Philonicus albiceps (very common in the dune systems) Machimus cowini (much scarcer but widespread across north of IOM) Pamponerus germanicus (rare, 3-4 sightings in 30+ years) I'll have to watch out Dioctria from now on. Steve Steve Crellin steve_crellin1@hotmail.co.uk Isle of Man |
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| Quaedfliegh |
Posted on 22-01-2015 22:44
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Member Location: Tilburg Netherlands Posts: 2198 Joined: 18.05.10 |
@Steve You don't have Dysmachus trigonus there in the dunes? Could look for that too : )
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/ |
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| Steve Crellin |
Posted on 23-01-2015 10:34
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Member Location: Isle of Man Posts: 41 Joined: 01.09.04 |
Reinoud, Yes it has crossed my mind that Dysmachus should be in the IOM dunes but none have turned up so far and it looks as though this species hasn't made it to Ireland either. Has anyone looked at the migratory abilities of asilids? ATB Steve Steve Crellin steve_crellin1@hotmail.co.uk Isle of Man |
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| Quaedfliegh |
Posted on 23-01-2015 23:48
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Member Location: Tilburg Netherlands Posts: 2198 Joined: 18.05.10 |
I haven't found that yet. It seems that the continental Western European species do not seem to like travelling. England used to be connected to the continent yet it lacks quite some species when compared to the Netherlands and Belgium (and a lot when compared to France), like Antipalus varipes, Dysmachus (Didysmachus) picipes, Paritamus (Neomochtherus)geniculatus, Neoitamus socius, and then some. But that common species like Machimus (Tolmerus) atricapillus and Dysmachus trigonus (present in England) couldn't make it IOM or Ireland makes one wonder....But as John Carr mentioned that D. hyalipennis has been introduced into North America why not in Ireland. Was it introduced on purpose?
Edited by Quaedfliegh on 23-01-2015 23:52 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/ |
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| John Carr |
Posted on 27-01-2015 02:33
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Member Location: Massachusetts, USA Posts: 9841 Joined: 22.10.10 |
Quaedfliegh wrote: I haven't found that yet. It seems that the continental Western European species do not seem to like travelling. England used to be connected to the continent yet it lacks quite some species when compared to the Netherlands and Belgium (and a lot when compared to France), like Antipalus varipes, Dysmachus (Didysmachus) picipes, Paritamus (Neomochtherus)geniculatus, Neoitamus socius, and then some. But that common species like Machimus (Tolmerus) atricapillus and Dysmachus trigonus (present in England) couldn't make it IOM or Ireland makes one wonder....But as John Carr mentioned that D. hyalipennis has been introduced into North America why not in Ireland. Was it introduced on purpose? There is no reason to introduce such a generalist predator intentionally. I am sure it was accidentally introduced. |
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| Steve Crellin |
Posted on 27-01-2015 12:17
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Member Location: Isle of Man Posts: 41 Joined: 01.09.04 |
John Carr wrote: Quaedfliegh wrote: I haven't found that yet. It seems that the continental Western European species do not seem to like travelling. England used to be connected to the continent yet it lacks quite some species when compared to the Netherlands and Belgium (and a lot when compared to France), like Antipalus varipes, Dysmachus (Didysmachus) picipes, Paritamus (Neomochtherus)geniculatus, Neoitamus socius, and then some. But that common species like Machimus (Tolmerus) atricapillus and Dysmachus trigonus (present in England) couldn't make it IOM or Ireland makes one wonder....But as John Carr mentioned that D. hyalipennis has been introduced into North America why not in Ireland. Was it introduced on purpose? There is no reason to introduce such a generalist predator intentionally. I am sure it was accidentally introduced. A number of insects seem to have arrived on Man in recent years either by hitching a lift or under their own power. Examples include Osmia rufa, Dolichovespula media and Harmonia axyridis. Sadly from my point of view, no new asilids! Steve Crellin steve_crellin1@hotmail.co.uk Isle of Man |
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but don't see the image in the post.
