Diptera.info - Discussion Forum: Tachinidae ID?

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Tachinidae ID?
tristram	#1 Posted on 21-09-2011 19:11
Member Location: Reading, UK Posts: 1334 Joined: 27.06.10	In long grass in Reading, UK, on 2011-09-21. tristram attached the following image: [142.74Kb] Edited by tristram on 21-09-2011 19:12


tristram	#2 Posted on 21-09-2011 19:12
Member Location: Reading, UK Posts: 1334 Joined: 27.06.10	And from above: tristram attached the following image: [179.95Kb]


ChrisR	#3 Posted on 21-09-2011 20:38
Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04	Linnaemya - possibly tessellans but would be nice to key it out and check for picta if you have a specimen L.picta has been spreading across the UK this year (Kent, Suffolk & Cambridgeshire) so it's not unrealistic to think that it might make the Thames Valley Edited by ChrisR on 21-09-2011 20:39 Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London.


Zeegers	#4 Posted on 21-09-2011 20:39
Member Location: Soest, NL Posts: 19310 Joined: 21.07.04	A Linnaemyia. Might very well be picta. Theo


ChrisR	#5 Posted on 21-09-2011 20:41
Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04	@Theo: What might indicate picta from the above photos? Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London.


Zeegers	#6 Posted on 21-09-2011 20:48
Member Location: Soest, NL Posts: 19310 Joined: 21.07.04	red tibia and yellow humerus. But I'm not sure. Now we mention it, the apical margin of tergite 5 definitely seems reddish int he last pic, which would confirm picta. Olsufjevi and others have a less prominent projecting mouth margin Theo


ChrisR	#7 Posted on 21-09-2011 21:07
Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04	Hmm, definitely needs a specimen then ... would be nice to know the exact locality and I could have a look - it must be close to me If it is picta then it is a very exciting record Edited by ChrisR on 21-09-2011 21:08 Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London.


tristram	#8 Posted on 21-09-2011 21:25
Member Location: Reading, UK Posts: 1334 Joined: 27.06.10	Thankyou Chris and Theo! I don't have a specimen. I do have this rather blurry photo under a different lighting (for what its worth): tristram attached the following image: [170.66Kb]


sd	#9 Posted on 21-09-2011 21:47
Member Location: Suffolk, UK Posts: 893 Joined: 11.10.07	I've seen a lot of picta this year, though mostly males which are easier to id than this female, but it does look right to me - strong bristles on the lower cheeks. The males have reddish areas laterally on the abdomen-- http://www.dipter...d_id=35154 Steve


ChrisR	#10 Posted on 21-09-2011 23:37
Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04	@tristram: Sadly photos won't help much because the features we need to see for a 100% confirmation are too small to show up. If you can PM me the locality then I might be able to have a look but if you can get a specimen then I would be very interested indeed - just catch one and I will sort out the pinning etc. Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London.


Jaakko	#11 Posted on 22-09-2011 20:14
Member Location: Joensuu, Finland Posts: 479 Joined: 04.08.08	Looks like picta to me as well. Funny, last year tesselans was more common here in Friedberg, this year the opposite!


ChrisR	#12 Posted on 22-09-2011 20:42
Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04	Great news - Linnaemya picta has been romping across the country but a specimen from the Reading area would be a massive leap from previous regions I'm hesitant to take the record from a photo but Tristram is going to have a go at catching one for me and I'm going to keep a good lookout in other areas Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London.