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Diptera.info :: Identification queries :: Diptera (eggs, larvae, pupae)
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Syrphidae pupa ?> Cecidomyiidae
solito de solis
#1 Print Post
Posted on 24-11-2015 22:10
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Location: Liege, Belgium
Posts: 404
Joined: 05.08.13

Hey dipterists

from a stream freshwater sample collected and preserved
A strange pupa a little bit disymetrical in the posterior part, spindle shaped, the anterior tip very sharp
3 mm length litgh dark pattern on the skin

A larva inside correctly preserved after 5 years in formaline/ethanol extracted without difficulties

little head with short antennae and 2 spiracles on each side of the head




rodredi.free.fr/pupax/pupax.jpg


rodredi.free.fr/pupax/pupax0.jpg

rodredi.free.fr/pupax/pupax01.jpg


rodredi.free.fr/pupax/pupax02.jpg

a strange button at the end of a fresher pupa last segment

rodredi.free.fr/pupax/pupax020.jpg

spicules on the skin of the pupa

rodredi.free.fr/pupax/pupax021.jpg


a unique pore on the top of the anterior part of the pupa

rodredi.free.fr/pupax/pupax03.jpg

rodredi.free.fr/pupax/pupax031.jpg




rodredi.free.fr/pupax/pupax04.jpg

last abdominal segment
rodredi.free.fr/pupax/pupax05.jpg

spiracles on each side of the head
rodredi.free.fr/pupax/pupax06.jpg









thanks for the help

solito de solis
Edited by solito de solis on 25-11-2015 10:25
 
atylotus
#2 Print Post
Posted on 25-11-2015 07:34
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Location: Amsterdam, NL
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Joined: 29.05.09

Cecidomyidae. As far as I can tell there are no aquatic species.
Edited by atylotus on 25-11-2015 07:36
 
solito de solis
#3 Print Post
Posted on 25-11-2015 10:25
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Location: Liege, Belgium
Posts: 404
Joined: 05.08.13

Merci Atylotus

You know that as we have to collect water samples in 8 places if a place in a stream
we need to move and shake aquatic plants, phragmites and bryophits we often find non-aquatic organisms from plant debris such as slugs, ladybugs, a.s.o.
I have been told that they are some CECIDOMYIIDA : PORRICONDYLINAE
living in such as aquatic biocoenosis... (torrential stream France SW)
(http://www.limnol...63p225.pdf )

Regarding the organism found in this pupa, could we ID better ?
Or we have to stop here by lack of features ?
SDS

MAYETIOLIA ?
Edited by solito de solis on 25-11-2015 17:46
 
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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
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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?

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