These are setae placed on the surface of a leg. Often setae placed on femora or tibiae have diagnostic value, but there can also be setae on other parts of the legs. The leg is divided into eight imaginary planes: dorsal, posterodorsal, posterior, posteroventral, ventral, anteroventral, anterior, and anterodorsal. The leg flexes in the dorsal-ventral plane and if the leg is rotated on the coxa this is the important fact and not the position of the leg relative to the whole fly. Twin rows of small dorsal setae running the length of the femur and tibia act as a guide in some flies. Presence, absence, number and relative size of leg setae may be very significant taxonomic characters in many Diptera.
For those specialists not active on Facebook, I just ask to consider to join our group on FB. Please, be aware that it is not necessary at all to be active on FB outside the diptera group. Actually, n
We received requests to get permission to ask for ID in our Facebook group, https://www.facebo ok.com/groups/1798 95332035235/
Until now we pointed to diptera.info, but since Paul's passing we not
Appreciate it, Tony Irwin! I got the hint to use the key next to Langton and Pinder key for females of Chironomidae. So no specific queries, except the keys...
I will keep this on my list and hope th
Anyone has "Chironomidae of the Holarctic region. Keys and diagnoses. Part 3. Adult Males Entomologica Scandinavica Supplement 34"?
smolwaarneming@gma il.com