Kluge 2004: Fig.63

Figure 63. Rhithrogena/fg2, adult mesonotum.

AB Cinygmula/g1 sapporensis [Siphlurus]: A subimaginal exuviae of right half of mesonotum; B imaginal mesonotum, dorsal view (compare with Fig.61:A). CE: Rhithrogena/fg3: C Sibirigena/g* sibirica [Rhithrogena], subimaginal exuviae of right half of mesonotum; DE Rhithrogena/fg4 iridina [Baetis], imaginal mesothorax (bases of posterior scuto-coxal and scuto-lateropostnotal muscles shown by interrupted lines) (compare with Fig.56:LM): D dorsal view, E lateral view (most part of pleura removes to show muscles). (From Kluge 1988a).

Abbreviations: LPs lateroparapsidal suture; MNs mesonotal suture; MPs medioparapsidal suture; MTm median tergal muscle; PSp posterior scutal protuberance; r.l relief line; S.CmP posterior scuto-coxal muscle; S.LPNm scuto-lateropostnotal muscle.