Gallery Links
Users Online
· Guests Online: 19

· Members Online: 0

· Total Members: 4,950
· Newest Member: JeffersonA
Forum Threads
Theme Switcher
Switch to:
Last Seen Users
· Gansucha00:08:36
· Volker00:18:17
· smol00:24:27
· Jan Maca00:30:39
· Tony Irwin01:14:15
· Joerg Schneider01:15:44
· weia01:54:47
· ESant02:01:47
· Nosferatumyia02:08:11
· Carnifex02:48:10
Latest Photo Additions
View Thread
Diptera.info :: Family forums :: Syrphidae
Who is here? 1 guest(s)
 Print Thread
Eristalinus sepulchralis?
johnes81
#1 Print Post
Posted on 28-09-2017 12:27
User Avatar

Member

Location: Berlin, Germany
Posts: 1978
Joined: 15.10.16

Berlin - August - female

I have trouble understanding how to separate Eristalinus sepulchralis from Eristalinus aeneus because I think that the abdomen is not 'completely' shiny in aeneus. I see alot of photos identified as aeneus but it looks to be matte black too. The eyes are supposed to be hairy all over for Eristalinus sepulchralis but I do not see but a few hairs at the very bottom of the eyes on my specimen. In this case, genitalia is better for me so I've dissected the ovipositor. Thus, am I correct with Eristalinus sepulchralis?

Maybe someone can also help with a second question: what is a difference of the ovipositor of Eristalinus aeneus? Noone draws genitalia for some reason.

Thank You for your Time and Effort.
johnes81 attached the following image:


[141.23Kb]
John and Nini. Naturalists not experts.
 
johnes81
#2 Print Post
Posted on 28-09-2017 12:28
User Avatar

Member

Location: Berlin, Germany
Posts: 1978
Joined: 15.10.16

eyes hairy
johnes81 attached the following image:


[206.86Kb]
John and Nini. Naturalists not experts.
 
johnes81
#3 Print Post
Posted on 28-09-2017 12:28
User Avatar

Member

Location: Berlin, Germany
Posts: 1978
Joined: 15.10.16

ovipositor - dorsal and ventral views
johnes81 attached the following image:


[74.22Kb]
Edited by johnes81 on 28-09-2017 12:29
John and Nini. Naturalists not experts.
 
Gerard Pennards
#4 Print Post
Posted on 28-09-2017 13:29
User Avatar

Member

Location: Amersfoort
Posts: 1914
Joined: 07.06.04

If you have a male it's very easy. In aeneus male the eyes touch, in sepulchralis males the eyes are slightly separated. The hairy eyes feature goes for the females.....
Greetings,
Gerard Pennards
 
johnes81
#5 Print Post
Posted on 28-09-2017 20:00
User Avatar

Member

Location: Berlin, Germany
Posts: 1978
Joined: 15.10.16

Thank You for the explanation Gerard. I have yet to find a male. I always find the females for some reason. Based upon the hairy eyes, then I guess this is E. sepulchralis. I wonder when I will find E. aeneus. I suppose that I have to look in new places next spring/summer.

I am trying to learn more about Syrphidae. I am surprised that more people do not study them. I like Syrphidae.

Thank You and I wish for you to have a Wonderful Day.
Edited by johnes81 on 28-09-2017 20:01
John and Nini. Naturalists not experts.
 
Jump to Forum:
Similar Threads
Thread Forum Replies Last Post
Eristalinus sepulchralis confirms elkans Syrphidae 3 20-12-2023 22:51
Eristalinus taenopis? Syrphidae 1 27-11-2023 06:47
Eristalinus taeniops Syrphidae 8 27-11-2023 06:43
Eristalinus cf. tabanoides from Iran? Syrphidae 3 11-11-2023 19:38
Eristalinus cf. tabanoides male? Syrphidae 7 11-11-2023 12:34
Date and time
29 March 2024 13:58
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.

07.03.24 00:01
Some flies preserved in ethanol and then pinned often get the eyes sunken, how can this be avoided? Best answer: I usually keep alcohol-collected material in alcohol

17.08.23 15:23
Aneomochtherus

17.08.23 13:54
Tony, I HAD a blank in the file name. Sorry!

17.08.23 13:44
Tony, thanks! I tried it (see "Cylindromyia" Wink but don't see the image in the post.

17.08.23 11:37
pjt - just send the post and attached image. Do not preview thread, as this will lose the link to the image,

16.08.23 08:37
Tried to attach an image to a forum post. jpg, 32kB, 72dpi, no blanks, ... File name is correctly displayed, but when I click "Preview Thread" it just vanishes. Help!

23.02.23 21:29
Has anyone used the Leica DM500, any comments.

27.12.22 21:10
Thanks, Jan Willem! Much appreciated. Grin

19.12.22 11:33
Thanks Paul for your work on keeping this forum available! Just made a donation via PayPal.

09.10.22 17:07
Yes, dipterologists from far abroad, please buy your copy at veldshop. Stamps will be expensive, but he, the book is unreasonably cheap Smile

Render time: 0.60 seconds | 189,905,750 unique visits