FIGURE 12 in Diversity of culicomorphan dipterans in the Eocene Kishenehn Konservat-Lagerstätte (Montana, USA) and its palaeoecological implications

FIGURE 12. Rheotanytarsus lacustris sp. nov. (Chironomidae). Adult male and pupa. Holotype USNM 717577 (A–E). A, Habitus, unmarked. B, Schematic drawing of male genitalia (hypopygium). C, Male genitalia (hypopygium), unmarked. D, Male genitalia (hypopygium), marked. E, Abdominal tergite II with armament of shagreen. Abbreviations: a8–a9, abdominal units (segments) eight and nine; ap, anal point (remnants of tergite X); gc, gonocoxite (II); gs, gonostylus; iv, inferior volsella (lateral protrusion of gonocoxite); mv, median volsella (lateral protrusion of gonocoxite); tb, tergal bands; ts, shagreen of tergites.