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View Thread :: Identification queries :: Diptera (eggs, larvae, pupae)
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Diptera larvae? Stratiomyidae, Pachygastrinae. Probably a Zabrachia.
Morten A Mjelde
#1 Print Post
Posted on 01-03-2021 19:18

Posts: 6201
Joined: 29.11.15

Found this under pine bark today March 1st. Telemark, Norway. The beetle is measured at 1.8 mm.
Morten A Mjelde attached the following image:

Edited by Morten A Mjelde on 01-03-2021 20:58
#2 Print Post
Posted on 01-03-2021 20:34

Location: Franconia, Germany
Posts: 3341
Joined: 11.11.18

Hi Morton, Stratiomyidae, Pachygastrinae. Probably a Zabrachia, but I cannot see enough bristles to be sure.

Greetings, Eric
Morten A Mjelde
#3 Print Post
Posted on 01-03-2021 20:57

Posts: 6201
Joined: 29.11.15

Thank you very much! Interesting that it is possible to find an insect genus based on the larva's appearance.

Paul Beuk
#4 Print Post
Posted on 04-03-2021 08:48
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Location: Netherlands
Posts: 19209
Joined: 11.05.04

Even better. You are more likely to establish the occurrence of Zabrachia by looking for the larvae than trying to find the adults. I do not know about the present state, but twenty years ago, here in the Netherlands, there were about ten times as many sites from which we knew the larvae than from which we (just) knew the adults.

- - - -

Paul Beuk on
#5 Print Post
Posted on 05-03-2021 11:35

Location: Franconia, Germany
Posts: 3341
Joined: 11.11.18

The present state seems to be identical: These larva were found under the bark of an old dead but standing Pinus silvestris this morning. And last year I've seen many larvae but only one adult...

Greetings, Eric
eklans attached the following image:

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28 February 2024 17:33


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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,

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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!

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Thanks, Jan Willem! Much appreciated. Grin

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

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

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Can any1 help out with a pdf copy of 1941 Hammer. Vidensk. Meddel. Dansk Naturhist. Foren. 105; thank you

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