An abnormal growth (often a swelling) of plant tissue, caused by external stimuli, generally by insects such as gall wasps (Cynipidae), and gall midges (Cecidomyidae) but also by mites, aphids, psyliids and some Lepidoptera. Sometimes galls are formed by bacteria, parasitic fungi or other diseases of the plant so galls induced by insects are called insect galls.
Links: http://en.wikiped.../wiki/Gall
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?