Bidessodes hamadae 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 : 26-27

Bidessodes hamadae Braga and Ferreira-Jr., 2009 Figs 51-54, 104

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

Diagnosis.

Specimens do not have modified prosternum. The prosternal process is flat with the lateral margins somewhat convex and the apex acuminate. The male mesotibia is bent basally. The metafemur and metatrochanter are unmodified. The male abdominal ventrite VI is impressed and sulcate apically. The male median lobe in lateral aspect is basally elongate with an elongate dorsally-directed flange, the apical portion is elongate, medially slightly expanded but nearly straight with the apex slightly hooked dorsally (Fig. 52). In ventral aspect the median lobe is broad with the lateral rami moderately broad, divergent basally, apically obliquely truncate with medial shallow emargination between the apices (Fig. 53). The lateral lobe has the apical segment irregular, broad and apically truncate. The basal portion is elongate Y-shaped (Fig. 54). Specimens are elongate-slender and relatively immaculate with an indistinct apical pale spot (Fig. 51).

Discussion.

Only females were examined for this study and the figures of the male genitalia (Figs 52-54) are redrawn from Braga and Ferreira-Jr. (2009).

Distribution.

Known from north-central Brazil (Fig. 104).