-It was collected in Xuan Son national park, northem Vietnam, a country in Indo-China, a tropical zone.
-This larvae get 1.7 cm in lenght and 0.15cm in width
-And i got 2 sample, one was covered with cuticun and the other might not, i'm not sure, may be it've just molting.
Thank you again, Vincent. Oh, and can you tell me what's diffrent between Eulichadidae and Ptilodactilidae, because of the gills, isn't it? Thank you so much!
Indeed : absence of abdominal and anal gills (plus the hooks on the anal lobes previously mentioned) is one of the reason why I am almost certain this larva belongs to Ptilodactylidae. However this is not exactly my area of expertise and it would be better if a specialist could confirm that.
I agree with your opinion on this taxon. I got a few information about Coleoptera larvae, in Neutropical, i know they are not in same, Neutropical and Oriental.
Anyway, thank for your help, Vincent Lefebvre. I'll get further discussions with my teacher and i think that we can go further in the identification.
This is a larva of Ptilodactylidae. I cannot identify it to genus with just your photographs. But I think that with the family identification you can find more information by Googling "Ptilodactylidae of the Asia". Or you could write to Hiroyuki Yoshotomi in Japan.