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Hey,

here is a global view of the larvae moving in its environment






I've been surprised by this larva , 8 mm length, so different Vs the commun Tipulidae larvae I can see in a macroinvertebrate samples
ordinary collected to realise Global index (IBGN),
The larva is tiny (7 mm) and was living in filamentous algae with diffferent Chironomidae larvae and Cladocerans
The shape of the 6 papillae (4 longs and 2 shorter), 6 subconical lobes and spiracles (2) and other features invite me to name Tipula (Yamatotipula) larva

a view of its mouth




Is it enough to that ?


a partial view of the whole habitus





and a view of the spiracular place a little bit crushed by the destiny



As the larva is very juvenile, I could not see really a lot of "hairs" or longitudinal dark lines
but they are macroscopic setae present among little hairs as you can see on this picture





close-up to the spiracle, "dried"



Please, what could be the specific feature I have to observe to give a right name to this larva ?

Merci beaucoup
SDS