Thread subject: Diptera.info :: Very small Drosophilid

Posted by Juergen Peters on 29-11-2006 23:54
#1

Hello!

Among the many Drosophila immigrans on the bananas in our garden (Ostwestfalen/Germany) there are some other, which are even smaller, only about 1.5 mm (so no better photo possible). Not very well visible on the pic below, but some parts of the topside of the abdomen are darker than others. Could this be the famous Drosophila melanogaster? Thanks in advance!

Posted by Paul Beuk on 30-11-2006 08:24
#2

Based on the wing I'd still say immigrans...

Posted by Juergen Peters on 30-11-2006 11:40
#3

Hello, Paul!

Paul Beuk wrote:
Based on the wing I'd still say immigrans...


But they were not much more than half the size of the others... Or are there such big size differences between males and females? (Can't remember having seen such, when some were mating.)

Posted by Paul Beuk on 30-11-2006 12:06
#4

Food can be a limiting factor when it comes to adult size: little food for the larva, small size for the adult.