Sergentia coracina (Zetterstedt, 1850)

Chamutiová, Tímea, Hamerlík, Ladislav & Bitušík, Peter, 2020, Subfossil chironomids (Diptera, Chironomidae) of lakes in the Tatra Mountains an illustrated guide, Zootaxa 4819 (2), pp. 216-264 : 254

Sergentia coracina - type ( Fig. 91 )

Mandible with 4 dark inner teeth, premandibles with 2 apical teeth, mentum with 4 subequal median teeth, outermost lateral teeth not reduced, and distinct paired striations along anterior margin of ventromental plate ( Fig. 91A ).

Figures

FIGURES 91–92. Sergentia coracina-type: 91—head capsule, A—paired striations on the ventromental plate. Stictochironomus type B: 92—head capsule.