Gallery Links
Users Online
· Guests Online: 22

· Members Online: 0

· Total Members: 4,950
· Newest Member: JeffersonA
Forum Threads
Theme Switcher
Switch to:
Last Seen Users
· smol00:09:10
· Tony Irwin00:14:24
· Joerg Schneider00:15:53
· weia00:54:56
· ESant01:01:56
· Nosferatumyia01:08:20
· Gansucha01:11:00
· Carnifex01:48:19
· Reimund Ley02:08:00
· Zeegers02:25:09
Latest Photo Additions
View Thread
Diptera.info :: Identification queries :: Diptera (eggs, larvae, pupae)
Who is here? 1 guest(s)
 Print Thread
Ephydridae Hydrellia puparium ? > Hydrellia
solito de solis
#1 Print Post
Posted on 23-11-2015 15:16
User Avatar

Member

Location: Liege, Belgium
Posts: 404
Joined: 05.08.13

Hey friends

puparium preserved in formaline/alcohol (5 years old), collected in freshwater stream
larva present in one but so breakable it was impossible to manipulate it
an adult (?) present in the darker one

Length of the puparium 3.2 mm
this one with the adult inside

rodredi.free.fr/hydrel/Hydr00.jpg

lateral and dorsal view of 2 pupae

rodredi.free.fr/hydrel/Hydr01.jpg

Tip of the anal segment (siphon ?)

rodredi.free.fr/hydrel/Hydr02.jpg


spicules on each abdominal segment VV

rodredi.free.fr/hydrel/Hydr03.jpg

First segment tip (where the cephalopharyngeal skeleton is fixed inside) Frontal view


rodredi.free.fr/hydrel/Hydr04.jpg






cephalopharyngeal skeleton very simple

rodredi.free.fr/hydrel/Hydr05.jpg



the adult (?) DV links VV right

rodredi.free.fr/hydrel/Hydr08.jpg


merci for the attention
SDS
Edited by solito de solis on 23-11-2015 20:03
 
atylotus
#2 Print Post
Posted on 23-11-2015 19:43
User Avatar

Member

Location: Amsterdam, NL
Posts: 1118
Joined: 29.05.09

Yes, these are the puparia of hydrellia. However, there are parasitic hymenoptera, possibly Ichneumonidae in the skin. Many hydrellia are parasitized, usually only 50% or so contain the fly. The posterior spiracles are 2 pointed elongations to pierce the plants' parenchym for oxygen uptake.
Edited by atylotus on 23-11-2015 19:47
 
solito de solis
#3 Print Post
Posted on 23-11-2015 20:03
User Avatar

Member

Location: Liege, Belgium
Posts: 404
Joined: 05.08.13

Thanks
Do you mean that this adult is not Hydrellia...
I can believe as I'm a beginner and I dont'know really what happens outside the water
But Ichneumonidae have 4 wings, two anterior and two posterior and here
there is only 1 pair Wings pad

But the antennae of Hydrellia are really not so long !!

I have a picture of the mouth.. perhaps this will confirm Ichneumonidae
I will post it in a moment

SDS

SDS

 
atylotus
#4 Print Post
Posted on 24-11-2015 07:56
User Avatar

Member

Location: Amsterdam, NL
Posts: 1118
Joined: 29.05.09

The adult is definitely no fly but a parasitic wasp.
 
solito de solis
#5 Print Post
Posted on 24-11-2015 13:22
User Avatar

Member

Location: Liege, Belgium
Posts: 404
Joined: 05.08.13

merci Atylotus

I try to understand what happened.
If the pupa has traces of larvae Hydrellia spicules, if the pupa has the shape of a pupa Hydrellia, if it is found in the pupa a cephalopharyngeal skeleton of the larvaa attached to the front tip of the pupa, I have to think that the larva existed to the end of his development.
When therefore the parasitism? The wasp lays its eggs in the larva and an egg grows and develops digesting what is in the pupa before itself becoming an adult as seen in the photo?


I have found an answer
here http://entnemdept...mbiana.htm

merci
Edited by solito de solis on 24-11-2015 13:46
 
solito de solis
#6 Print Post
Posted on 24-11-2015 18:58
User Avatar

Member

Location: Liege, Belgium
Posts: 404
Joined: 05.08.13

After a better observation (and dissolution of CHOH polymers stiking the organism)

I have to apologize, the adult insect (wasp) had 2 pairs of wing pads

A better picture of the head of Hydrellia

rodredi.free.fr/hydrel/hydrel11.jpg


SDS
Edited by solito de solis on 24-11-2015 18:59
 
Jump to Forum:
Similar Threads
Thread Forum Replies Last Post
Some diptera puparium, No = aphid parasitized by a wasp Diptera (eggs, larvae, pupae) 3 21-03-2024 18:29
Athyroglossa glabra (Ephydridae)? (10.02.24) --> confirmed Diptera (adults) 5 20-03-2024 22:51
Scatella (Ephydridae)? (10.02.24) --> cf. Scatella lacustris Diptera (adults) 4 20-03-2024 22:50
Ephydridae - more ID? --> Parydra species Diptera (adults) 4 14-03-2024 18:40
Ephydridae Diptera (adults) 8 21-02-2024 06:50
Date and time
29 March 2024 12:58
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: 0.85 seconds | 189,902,497 unique visits