Kluge 2004: Fig.87

Figure 87. Caenoptera-Caenis/fg* macrura [Caenis], pterothorax structure.

A male imaginal pterothorax, lateral view; B male imaginal pterothorax, median section; C male imaginal pterothorax, posterior view (arrow shows section in Fig.D); D longitudinal section of hind part of male pterothorax (by line shown in Fig.C) (compare with Fig.104:CD); E female imaginal pterothorax, posterior view; F male imaginal pterothorax, ventral view (nerve chain shown by interrupted line); G male imaginal pterothorax, dorsal view; H subimaginal exuviae of right half of mesonotum.

Abbreviations: AES anepisternum; FSp furcasternal protuberance; LPN lateropostnotum; MTN metanotum; PhM middle phragma; PSp posterior scutal protuberance; S.LPNm scuto-lateropostnotal muscle; SLS sublateroscutum; TIS - transverse interscutal suture.