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
Dr Michael von Tschirnhaus, a leading expert on Chloropidae and Agromyzidae, died on 16 September 2025 at the age of 86. He will be greatly missed by the international community. R.I.P.
Anyone has the scan of "Harkness, R. D.; Ismay, J. W. 1976: A new species of Trachysiphonella (Dipt., Chloropidae) from Greece, associated with an ant Cataglyphis bicolor (F.) (Hym., Formicidae)
I would prefer not to receive any more messages from diptera.info signed by Paul... (Thread reply notification)... Could they be signed by ‘The diptera.info team’?
It is with deepest sadness in my heart that I announce that on Saturday, November 15, one of the great minds of world dipterology, prof. Rudolf Rozkošny, left us forever.
Please remember him with a
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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
(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