Gallery Links
Users Online
· Guests Online: 22

· Members Online: 0

· Total Members: 5,042
· Newest Member: jaseur
Forum Threads
Theme Switcher
Switch to:
Last Seen Users
· Juergen Peters00:22:55
· Nosferatumyia00:33:34
· jpjepilou00:56:00
· Manu7001:43:32
· Mario Renden01:55:37
· CedricMondy01:57:26
· Calle Ljungberg02:17:05
· evdb02:19:31
· Auratus02:24:58
· Tony Irwin02:50:12
Latest Photo Additions
View Thread
Diptera.info :: Family forums :: Syrphidae
Who is here? 1 guest(s)
 Print Thread
Chrysotoxum festivum?
blowave
#1 Print Post
Posted on 02-11-2008 01:04
User Avatar

Member

Location: LINCOLN, UK
Posts: 3151
Joined: 27.06.07

Hi,

I hope I have this one right. Smile It looks like it was waiting to dry out but I saw it like this for over 4 hours, then it disappeared. Thanks!

On 16th June, Lincoln UK.
blowave attached the following image:


[72.94Kb]
 
http://cubits.org/buglife/
blowave
#2 Print Post
Posted on 02-11-2008 01:05
User Avatar

Member

Location: LINCOLN, UK
Posts: 3151
Joined: 27.06.07

Face
blowave attached the following image:


[77.89Kb]
 
http://cubits.org/buglife/
Andre
#3 Print Post
Posted on 02-11-2008 17:38
User Avatar

Member

Location: Tilburg, the Netherlands
Posts: 2111
Joined: 18.07.04

It is the correct ID Smile
 
www.biomongol.org
blowave
#4 Print Post
Posted on 02-11-2008 17:44
User Avatar

Member

Location: LINCOLN, UK
Posts: 3151
Joined: 27.06.07

Thank you Andre! Grin

Janet
 
http://cubits.org/buglife/
Andre
#5 Print Post
Posted on 02-11-2008 17:57
User Avatar

Member

Location: Tilburg, the Netherlands
Posts: 2111
Joined: 18.07.04

It's great you caught this one like this, must have been emerged nearby...?
 
www.biomongol.org
blowave
#6 Print Post
Posted on 02-11-2008 18:06
User Avatar

Member

Location: LINCOLN, UK
Posts: 3151
Joined: 27.06.07

Hi Andre, it was on a Lilium plant which I have in a pot, one of several, which I repotted early in the year but I have other pots nearby which had overwintered nearby outside. It was in semi-shade by my garage, and also I have a large Horse Chestnut tree near that with compost bins. I'm not sure where they develop, it might have been mixed in my compost for the pots, which is mainly from leaves! Or maybe under a pot, I don't know but it couldn't have been far away with wings like that. I wish now that I had used a low level flash to get better pics, I took a lot, not sure if that would have damaged it's eyes.
 
http://cubits.org/buglife/
Andre
#7 Print Post
Posted on 03-11-2008 20:50
User Avatar

Member

Location: Tilburg, the Netherlands
Posts: 2111
Joined: 18.07.04

I don't know either if flash can damage its eyes... interesting suggestion! Anyone to make it to a scientific study? Wink

About its development: Chrysotoxum festivum (as are other Chrysotoxum species) is said to develop within ants nests, presumably predators of root aphids. But, this must be said immediately: the precise feeding habits of the larvae of Chrysotoxum are unknown. Most recent info concerning festivum:
"puparium described and figured by Speight (1976), who found the mature larva with the ant Lasius niger, beneath a stone in Corylus/Prunus scrub on old pasture".

Speight, M.C.D. (1976) The puparium of Chrysotoxum festivum (L.) (Dipt., Syrphidae). Ent.Rec.J.Var., 88: 51-52.
 
www.biomongol.org
blowave
#8 Print Post
Posted on 03-11-2008 21:07
User Avatar

Member

Location: LINCOLN, UK
Posts: 3151
Joined: 27.06.07

That is very interesting! Not the flash, but it was because it had freshly emerged I was more worried, although I often wonder if it damages more mature flies' eyes. I sometimes use a low level flash as it's usually duyll here!

Lasius niger nests in the greenhouse where I had grown the Lilium from seed in early 2007, it was very early Februaury when I transplanted them into larger pots and placed outside by my garage. I don't think I moved any other plants to that area form that greenhouse, it is my neighbour's and gets more sun than mine do. Each year Lasius niger swarm with queens emerging, I have pics from 16th July this year. They always go into the bottom of some pots, as well as nesting under concrete slabs on the gorund. I do remember last year the ants also went into pots on the shelf where these were, it's easy to tell as the compost comes out the bottom as they mine it! I have had the same ants in my shadier greenhouse in pots too.

I imagine the larva may have been in the pot with Lilium, as I re-used the compost. It's also possible there was an ants nest under the concrete base of the garage nearby, but as it had climbed up the Lilium plant my guess is it was in the pot. Wink

Adding that there was also vine weevil in some of the pots of young lilium from their first year, which I found when transplanting in February as larvae. I doubt it has anything to do with this fly but thought I should mention it!
Edited by blowave on 03-11-2008 21:13
 
http://cubits.org/buglife/
Andre
#9 Print Post
Posted on 04-11-2008 18:56
User Avatar

Member

Location: Tilburg, the Netherlands
Posts: 2111
Joined: 18.07.04

Must be a real adventure, your greenhouse/garden! Smile
 
www.biomongol.org
blowave
#10 Print Post
Posted on 04-11-2008 21:04
User Avatar

Member

Location: LINCOLN, UK
Posts: 3151
Joined: 27.06.07

Yes it is! Grin The cheapest and best entertainment there is! I had a female Sericomyia silentis a few days ago on Ivy flowers, they are supposed to be in peat areas and more north and west than I am. My area is old pasture mainly (with some crops) and old woodland with sandy, acid soil.
 
http://cubits.org/buglife/
Jump to Forum:
Similar Threads
Thread Forum Replies Last Post
Which Chrysotoxum? (3 pics) Syrphidae 5 09-06-2025 19:06
Which Chrysotoxum? Syrphidae 2 08-06-2025 06:18
Chrysotoxum cautum Syrphidae 3 07-04-2025 19:31
which Chrysotoxum? => Chrysotoxum lessonae Syrphidae 7 21-11-2024 13:40
Chrysotoxum Syrphidae 1 08-05-2024 13:23
Date and time
09 July 2025 23:15
Login
Username

Password



Not a member yet?
Click here to register.

Forgotten your password?
Request a new one here.
Temporary email?
Due to fact this site has functionality making use of your email address, any registration using a temporary email address will be rejected.

Paul
Donate
Please, help to make
Diptera.info
possible and enable
further improvements!
Latest Articles
Syrph the Net
Those who want to have access to the Syrph the Net database need to sign the
License Agreement -
Click to Download


Public files of Syrph the Net can be downloaded HERE

Last updated: 25.08.2011
Shoutbox
You must login to post a message.

23.06.25 18:10
If you have some spare money, there is a copy (together with keys to pupae and larvae) for sale by Hermann L. Strack, Loguivy Plougras, France

23.06.25 11:18
Appreciate it, Tony Irwin! I got the hint to use the key next to Langton and Pinder key for females of Chironomidae. So no specific queries, except the keys... I will keep this on my list and hope th

19.06.25 15:33
I have the hard copy book, if you have any specific queries, but I'm not scanning the 500+ pages!

02.06.25 18:26
Anyone has "Chironomidae of the Holarctic region. Keys and diagnoses. Part 3. Adult Males Entomologica Scandinavica Supplement 34"? smolwaarneming@gma
il.com

28.05.25 20:57
I have Russian Coenosia. nikita6510@ya.ru

28.05.25 12:25
Is someone able to share with me "A key to the Russian species of the genus Coenosia"?

08.05.25 18:22
I have

03.05.25 08:35
Does someone has a scan of Nartshuk E.P. 2003. Key to families of Diptera (Insecta) of the fauna of Russian and adjacent countries. Proceedings of the Zoological Institute Vol. 294: 1-252 for me?

10.03.25 18:02
We are looking for a new webmaster https://diptera.in
fo/forum/viewthrea
d.php?thread_id=11
5023&rowstart=20

04.03.25 17:10
Please use the link posted below to remember and honour Paul, if you wish

Render time: 1.43 seconds | 230,711,294 unique visits