Prodiamesa Kieffer, 1906

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 : 225-226

Prodiamesa Kieffer ( Fig. 23 )

Head capsule large, yellow with black occipital margin and with dark brown pattern on postmentum.

Mentum consisting of 2 low median teeth and 8 pairs of lateral teeth; first lateral tooth high, trifid and fifth lateral teeth higher than fourth and sixth, respectivelly. Ventromental plates long and broad with long beard exceeding the edge of the head, well visible under lower magnification. Mandible with one apical tooth and 4 inner teeth.

Remarks: The unique shape of mentum together with well-developed ventromental plates bearing dense and long beard distinguish this morphotype from other chironomids.

Recently, P. olivacea (Meigen, 1818) has been recorded in the Tatra Mts. lakes ( Bitušík et al. 2006a; Novikmec et al. 2015).

Remains were collected rarely in small number of lakes at lower altitude. Morphology of the mouthparts correspond to description of P. olivacea in the current taxonomic literature (e.g. Schmid 1993, Saether & Andersen 2013).

Figures

FIGURE 23. Prodiamesa sp.: 23—head capsule.