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#1 2010-03-30 15:08:52

Peter Brash
Registered user
Name: Array Array
Registered: 2008-10-01
Posts: 1

Status of Leptarthrus vitripennis?

I've just identified this species which I took on the North Downs last year on 10th July. It was in a scrub invaded piece of grassland just north of the Pilgrim's Way at approximately TQ132497.

Does this species have a formal status? How many records are there?

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#2 2010-04-03 22:59:03

falky
Registered user
Name: Steven Falk
From: Kenilworth
Registered: 2009-11-30
Posts: 416

Re: Status of Leptarthrus vitripennis?

Hi Peter,

This is a rarity that seems to be confined to the North Downs (I only ever saw L. brevirostris during my detailed survey of the E. Sussex South Downs in recent years). I think it was added to the British list too late for a formal rarity grading, but I guess it would qualify for Endangered, Vulnerable or Lower Risk (Near Threatened) using the IUCN criteria that JNCC have adopted. Not too sure how many records, I think a few people have recorded it in the N. Downs now.

Falky

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#3 2010-04-04 02:55:00

haematocephalus
DF Members
Name: Martin Harvey
From: Buckinghamshire
Registered: 2008-02-27
Posts: 267
Website

Re: Status of Leptarthrus vitripennis?

It's also been recorded in the Berks, Bucks and Oxon Chilterns, by several people, not including me, alas! Chris Raper has some photos on his site at:
http://gallery.chrisraper.me.uk/thumbnails.php?album=8


Soldierflies and Allies Recording Scheme
http://www.brc.ac.uk/soldierflies-and-allies/

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#4 2010-04-04 14:44:11

Mark
DF Members
Name: Mark Mitchell
From: Hampshire
Registered: 2008-06-17
Posts: 273

Re: Status of Leptarthrus vitripennis?

I think I am correct that they are now grassing cattle there, is that likely to be a good thing or a bad thing for Leptarthrus vitripennis?

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#5 2010-04-04 21:14:38

adamwright
DF Members
Name: Adam Wright
Registered: 2009-02-12
Posts: 24

Re: Status of Leptarthrus vitripennis?

I found it at two sites on the extreme western end of the North Downs last year, but not in big numbers. Both species occur together. Females are quite distinctive in the field, in addition to the characters given in Stubbs & Drake my specimens have a dark smudge in the basal part of the wing which is absent in L. brevirostris.

Last edited by adamwright (2010-04-04 21:15:14)

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#6 2010-04-06 01:59:44

Mark
DF Members
Name: Mark Mitchell
From: Hampshire
Registered: 2008-06-17
Posts: 273

Re: Status of Leptarthrus vitripennis?

What is it real key to the habitat with this species? Is it host plants, habitat? chalk, Alkali soil. or something else? it's fine saying North downs (as much as i like the north downs myself), but I am sure this species can't read an os map?

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#7 2010-04-11 04:16:43

jaapiella
Registered user
Name: Scotty Dodd
From: Surrey/Hants border
Registered: 2008-06-27
Posts: 64

Re: Status of Leptarthrus vitripennis?

David Baldock (Surrey Hymenoptera recorder) has fairly up to date provisional VC map for Surrey distribution, as far as I know. S

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#8 2012-07-25 15:30:12

haematocephalus
DF Members
Name: Martin Harvey
From: Buckinghamshire
Registered: 2008-02-27
Posts: 267
Website

Re: Status of Leptarthrus vitripennis?

Leptarthrus vitripennis has turned up at a couple of river valley nature reserves this week, in Bucks - see:
http://www.ispot.org.uk/node/281933

and Herts - see:
http://www.ispot.org.uk/node/281494

As far as I know this is a new habitat for the species, so maybe it's extending into new areas, or maybe it's just dispersing out during the hot weather.

If anyone has finds this species I'd love to know the details, including the habitat.


Soldierflies and Allies Recording Scheme
http://www.brc.ac.uk/soldierflies-and-allies/

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#9 2013-11-04 16:28:17

Reinoud
Registered user
Name: Reinoud van den Broek
From: Tilburg, the Netherlands
Registered: 2011-02-14
Posts: 5
Website

Re: Status of Leptarthrus vitripennis?

haematocephalus wrote:

It's also been recorded in the Berks, Bucks and Oxon Chilterns, by several people, not including me, alas! Chris Raper has some photos on his site at:
http://gallery.chrisraper.me.uk/thumbnails.php?album=8

The fly on this picture is a female L. brevirostris. L. vitripennis has always red in the meta tarsi and besides that it has a very poorly developed beard on the face. In the pictures the creature has black metatarsi and a well developed beard.

Regards,

Reinoud


With kind regards,
Reinoud

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#10 2013-11-04 23:59:55

haematocephalus
DF Members
Name: Martin Harvey
From: Buckinghamshire
Registered: 2008-02-27
Posts: 267
Website

Re: Status of Leptarthrus vitripennis?

Reinoud, thanks for that, and you're quite right of course. L. vitripennis has been recorded at Chris's Hartslock nature reserve in the Chilterns, but his photos are not of vitripennis. I think Chris is aware of this, but he's not had a chance to correct his website - I guess he's too busy with tachinids!


Soldierflies and Allies Recording Scheme
http://www.brc.ac.uk/soldierflies-and-allies/

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#11 2013-11-05 02:53:13

Reinoud
Registered user
Name: Reinoud van den Broek
From: Tilburg, the Netherlands
Registered: 2011-02-14
Posts: 5
Website

Re: Status of Leptarthrus vitripennis?

Always those overcaliptrated Tachinids....


With kind regards,
Reinoud

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