FIGURES 19–28 in A new classification of the tribe Hygrotini Portevin, 1929 (Coleoptera: Dytiscidae: Hydroporinae)

FIGURES 19–28. Median lobe in ventral and lateral view of: (19) Clemnius (Cyclopius) acaroides, (20) Clemnius (s. str.) berneri, (21) Clemnius (s. str.) decoratus, (22) Hygrotus (s. str.) inaequalis, (23) H. (Coelambus) enneagrammus, (24) H. (Coelambus) confluens, (25) H. (Leptolambus) parallellogrammus, (26) H. (Leptolambus) impressopunctatus, (27) H. (s. str.) guineensis and (28) H. (Hyphoporus) tonkinensis (Fig. 28 is a modified reproduction of figs 3 and 4 in Brancucci & Biström 2013).Published as part of Fery, Hans, 2017, A new classification of the tribe Hygrotini Portevin, 1929 (Coleoptera: Dytiscidae: Hydroporinae), pp. 499-529 in Zootaxa 4317 (3) on page 516, DOI: 10.11646/zootaxa.4317.3.4, http://zenodo.org/record/88476