Key characters to subgenera of Bolitophila

Licence: 
Creative Commons Licence
Imaging technique: 
Photograph
Preparation technique: 
photo of wing in glycerine
Description: 

<p>The two subgenera of&nbsp;Bolitophila&nbsp;are easily separated by the termination of R2+3&nbsp;in or close to stigma.</p><p>Vein R2+3&nbsp;ending in vein R1&nbsp;…&nbsp;Subgenus&nbsp;<a title="Click to see all content tagged with this name" href="http://sciaroidea.info/taxonomy/term/40258">Bolitophila</a></p><p>V... in Costa&nbsp;…&nbsp;Subgenus&nbsp;<a title="Click to see all content tagged with this name" href="http://sciaroidea.info/taxonomy/40281">Cliopisa</a></p><p><a href="http://sciaroidea.info/node/48341#Family%20Bolitophilidae">To Nordic species of</a><a href="http://sciaroidea.info/node/48341#Family%20Bolitophilidae">&nbsp;Bolitop...

Imaging kewords: 
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith