Observations by kjeld_brem

A new proposal:
Nematinus caledonicus?

More or less match the youngster, I found 7 years earlier, and only 100 m away!

• 5 annullets
• The strange, white /colourless spots lateral on 1 + 4-11. segment
• Whitish 1. segment
• The same grayish-brown thoracular legs, and the brighter thighs
• The same head, dark and more bright around the mouth parts
• hairy head
• Same hairs out from anal-segment
• Bright prolegs

What is talking against:
It was found on the underside of an Oak-leaf, but there is a lot of Betula around - and perhaps fallen down - or on its way to pupate in the ground?

Length: 13 mm

But I simply cannot find any match better - with only 5 annullets.
Not many has that

Compare with this - much younger larva (8 mm) found on Betula same habitat.

https://www.inaturalist.org/observations/190696376

Please just comment ... :-)

I have overviewed caledonicus earlier, because I first last year realized, that the smaller larva in the link was that (and at the same time was first record in DK).

Length: 9½ mm - A younger larvae.
A lot found on Populus tremula, as small sitting into a hole in the leaf, later eating on the edge.

Remark the pointed cerci, compared to other P. tremula-eating species

2 larvae on Betula. Length: 15 mm -

Remark the "only 5 annulets pr segment" - the relatively smaller 3. thoracal leg (both compared to Dineura virididorsata - which is the "confusion species" ) ... and the 2 (R/L) black spots on the anal clap