Bidessodes demarcoi Braga and Ferreira-Jr., 2009

Miller, Kelly B., 2017, A review of the Neotropical genus Bidessodes Regimbart, 1895 including description of four new species (Coleoptera, Adephaga, Dytiscidae, Hydroporinae, Bidessini), ZooKeys 658, pp. 9-38 : 23

Bidessodes demarcoi Braga and Ferreira-Jr., 2009 Figs 31-34, 100

Bidessodes (Bidessodes) demarcoi Braga and Ferreira-Jr., 2009: 46; Nilsson, 2016: 98.

Diagnosis.

Bidessodes demarcoi does not have a carinate prosternum in males or females. The prosternal process is relatively flat, the lateral margins are slightly convergent to the broadly pointed apex. The male mesotibia is unmodified. The male metatrochanter and metafemur are not modified. The male abdominal ventrite VI is sulcate apically. The male median lobe in lateral aspect is broad and broadly curved throughout its length to a sinuate, apically truncate apical region (Fig. 32). In ventral aspect the median lobe is moderately broad with each lateral margin straight, apically slightly divergent and rounded with medial shallow emargination (Fig. 33). The lateral lobe in lateral aspect is extremely broad with a broadly rounded basal portion and the apical portion smaller, but broadly rounded (Fig. 34). Specimens are maculate on the elytra (Fig. 31).

Distribution.

Known from north-central Brazil (Fig. 100).