Thread subject: Diptera.info :: Bolopus furcatus

Posted by Izmi Gigavista on 12-06-2026 23:26
#1

among a large number of Mycetophila cingulus larvae iin the Polyporus squamosus (Wallonie- Belgium- 12 06 26) one extra larva
After difficult research I thnik this is a rare Bolopus furcatus larva
other pictures and video links will follow

hydrobiologie.be/INVERTEBRES/DIP/dipbolopusfurcatus1.jpg
hydrobiologie.be/INVERTEBRES/DIP/dipbolopusfurcatus2.jpg
hydrobiologie.be/INVERTEBRES/DIP/dipbolopusfurcatus3.jpg
hydrobiologie.be/INVERTEBRES/DIP/dipbolopusfurcatus4.jpg
hydrobiologie.be/INVERTEBRES/DIP/dipbolopusfurcatus5.jpg

Thanks for the attention and feedback
IZMI

Posted by Izmi Gigavista on 13-06-2026 11:48
#2

Here is a vid of the larva living in Polyporus squamosus

https://www.youtube.com/watch?v=hHbdkb0zqbk

YouTube Video

Posted by Izmi Gigavista on 14-06-2026 15:11
#3

Here are two pictures of frontal projection of Bolopus larva 3rd instar.
The magnification is 400x
First one is my observation and stacking with Helicon focus
The second one is a good interpretation enhanced by ChatGpt

hydrobiologie.be/INVERTEBRES/DIP/dipbolfurc05.jpg
hydrobiologie.be/INVERTEBRES/DIP/Dipbolfurc06.jpg

Izmi

Edited by Izmi Gigavista on 14-06-2026 15:12

Posted by Izmi Gigavista on 14-06-2026 22:52
#4

latest pictures on this so nice larva

anterior spiracle
hydrobiologie.be/INVERTEBRES/DIP/dipaspbolopfurc.jpg

one of the both "furca"
hydrobiologie.be/INVERTEBRES/DIP/dipbolfurcfurc.jpg

close-up maxilles
hydrobiologie.be/INVERTEBRES/DIP/Dipmaxlbolopfurc.jpg

face of the larva with sensors and maxilles
hydrobiologie.be/INVERTEBRES/DIP/dipbolfurcmaxl.jpg

posterior spiracles end of the abdomen
hydrobiologie.be/INVERTEBRES/DIP/dippsbolofurc.jpg

IZMI



Posted by Izmi Gigavista on 14-06-2026 23:09
#5

under the cuticle of Polyporus squamosus, the trace of the visit of the larvae of Bolopus furcatus and Mycetophila cingulum
hydrobiologie.be/INVERTEBRES/DIP/polsqua.jpg

Posted by Izmi Gigavista on 14-06-2026 23:53
#6

the larva dorsal view

hydrobiologie.be/INVERTEBRES/DIP/dipbolofurclarv.jpg