1. Located on the venter. For legs this means that these are considered as if they were in the position as given in the illustration. So, even if a leg is pointing upwards in a specimen, one should image that the leg was positioned in a horizontal plane, perpendicular to the body axis.
2. Located in a more position towards the venter. For example, a seta can be located ventral to another seta.
Fortunately the leg flexes (bends) in the dorsoventral plane so the legs dorsum and ventrum are easily identified. The periphery
(outside) of a transverse section is then divided into eight imaginary parts, which (looking down the leg towards the body read in the direction of a clock)
dorsal
postero-dorsal
posterior
postero-ventral
ventral
antero-ventral
anterior
antero-dorsal
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
Does someone has a scan of Nartshuk E.P. 2003. Key to families of Diptera (Insecta) of the fauna of Russian and adjacent countries. Proceedings of the Zoological Institute Vol. 294: 1-252 for me?
(outside) of a transverse section is then divided into eight imaginary parts, which (looking down the leg towards the body read in the direction of a clock)
dorsal
postero-dorsal
posterior
postero-ventral
ventral
antero-ventral
anterior
antero-dorsal