PHYLOGENY OF EPHEMEROPTERA (BY N.J.KLUGE)

Classif. ABC

Kluge 2004: Fig.56

Figure 56. Heptagenia/f7=g6.

AD Heptagenia/f8=g7 sulphurea [Ephemera], imaginal thoracic sterna: AB prosternum: A ventral view, B lateral view; C imaginal mesothorax, ventral view; D meso- and metathoracic nerve ganglia (shown by black) and ventral areas of mesothoracic muscles attachment (compare with Fig.57:AB). EG Dacnogenia/g* coerulans [Heptagenia]: E hypopharynx and left superlingua, ventral view; F glossae and ventral margin of hypopharynx, apical view; G glossae, dorsal view (in left half) and ventral view (in right half). HO Stenonema/g1: HK Maccaffertium/g* mexicana [Heptagenia]: H hypopharynx and superlinguae, ventral view; I glossae and ventral margin of hypopharynx, apical view; J glossae, dorsal view (in left half) and ventral view (in right half); K middle part of larval cercus; L Stenonema/g* femorata [Baetis], imaginal mesonotum, dorsal view (bases of posterior scuto-coxal and scuto-lateropostnotal muscles shown by interrupted lines) (compare with Fig.63:DE); M Maccaffertium/g1 terminata [Palingenia], the same; NO Stenacron/g1 sp.: N glossae, dorsal view (in left half) and ventral view (in right half); O left tergalius II, ventral portion bent out (ribs dotted, tracheae shown by dotted lines). (AD, FG, IO from Kluge 1988a).

Abbreviations: AES anepisternum; BS1 basisternum of prothorax; BS2 basisternum of mesothorax; FS1 furcasternum of prothorax; FSi furcasternal median impression of mesothorax; FSp furcasternal protuberance of mesothorax; LPs lateroparapsidal suture; MNs mesonotal suture; MPs medioparapsidal suture; n.mst mesothoracic nerve ganglion; n.mtt metathoracic nerve ganglion; SA.Sm ventral base of subalar-sternal muscle; S.CmP dorsal base of posterior scuto-coxal muscle; S.ESm ventral base of scuto-episternal muscle; S.LPNm dorsal base of scuto-lateropostnotal muscle.