Posted by Stephane Lebrun on 12-02-2009 21:13
#6
The first pictures were enough to show that were present 2 anterior setae on katepisternum, and if there are 2 anterior, there are also 2 posterior ones (combination in Helina is either 1+2 or 2+2 ant+post ks setae). ;)
Coenosia have only 3 ks setae, which are equidistant to each others (arranged in an inverted equilateral triangle).