A pair of bristles that usually arise from the ocellar triangle near the anterior ocellus but that are sometimes displaced, usually outside the ocellar triangle near the anterior ocellus.
The image is a temporary link to:
http://upload.wikimedia.org/wikipedia/commons/c/cf/Head-diptera-muscoidfly.gif
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?