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 ->Anthomyiidea:Eustalomyia on old tree
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| nick upton |
Posted on 11-10-2014 14:17
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Member Location: Wiltshire, UK Posts: 819 Joined: 12.03.10 |
A large grey/black tachinid wandering around on an old rotting tree base, inspecting a digger wasp (Ectemnius cephalotes) burrow repeatedly… though if my suggested ID Triarthria setipennis (the only species in the genus I can find records for in the UK), it was probably looking for its host the European earwig.. So they didn't all go for moth larvae… Thanks to JeremyR for suggesting Triarthria as a likely deadwood specialist if this is the right genus at least. c15mm on fungal infected tree, Wickwar, Gloucestershire, UK 10.10.2014 nick upton attached the following image:  [175.57Kb] Edited by nick upton on 11-10-2014 14:28 Nick Upton - naturalist and photographer |
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| nick upton |
Posted on 11-10-2014 14:18
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Member Location: Wiltshire, UK Posts: 819 Joined: 12.03.10 |
Head on view
nick upton attached the following image:  [170.17Kb] Nick Upton - naturalist and photographer |
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| nick upton |
Posted on 11-10-2014 14:18
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Member Location: Wiltshire, UK Posts: 819 Joined: 12.03.10 |
Dorsal view
nick upton attached the following image:  [153.75Kb] Nick Upton - naturalist and photographer |
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| jeremyr |
Posted on 11-10-2014 14:20
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 Member Location: Tottenham Posts: 577 Joined: 18.05.12 |
it's Eustalomyia cf. festiva an Anthomyiid that goes after those black crabronid wasps, and some Ectemnius as well I think you need a specimen to separate it from E histrio I think but it's probably festiva Jeremy Edited by jeremyr on 11-10-2014 14:23 |
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| nick upton |
Posted on 11-10-2014 14:27
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Member Location: Wiltshire, UK Posts: 819 Joined: 12.03.10 |
OK many thanks. Bristly fly sniffing out burrows made me assume Tachinidae. Must do better!
Nick Upton - naturalist and photographer |
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| nick upton |
Posted on 11-10-2014 14:48
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Member Location: Wiltshire, UK Posts: 819 Joined: 12.03.10 |
Looks like Eustalomyia festiva is a regular parasite of Ectemnius cephalotes according to this BWARS link: http://www.bwars.com/index.php?q=wasp/crabronidae/crabroninae/ectemnius-cephalotes
Nick Upton - naturalist and photographer |
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