Semiardistomis flavipes (Dejean 1831)

Variation of measurements (mm) and ratios for Semiardistomis flavipes (n=34) are: HL = 0,42–0,59–0,68; PL = 0,96–1,03–1,20; PW = 0,95–1,15–1,34; EL = 2,10–2,86–3,36; EW = 1,44–1,75–2,00; SBL = 3,55–4,48–5,16; PW/EW = 0,66; PW/PL = 1,11; PL/EL = 0,36; EW/EL = 0,61. Variation of measurements (mm) and ratios for Semiardistomis brittoni (n=3) are: HL = 0,54–0,62–0,67; PL 0,84–1,03–1,09; PW 1,09–1,21–1,28; EL 2,75–3,03–3,20; EW 1,76–1,90–2,02; SBL 4,26–4,68–4,96; PW/EW 0,63; PW/PL 1,16; PL/EL 0,34; EW/EL 0,63. Variation of measurements (mm) and ratios for Semiardistomis marani (n=1) are: HL = 0,58; PL 0,96; PW 1,09; EL 2,62; EW 1,66; SBL 4,16; PW/EW 0,65; PW/PL 1,13; PL/EL 0,37; EW/EL 0,63. Species Semiardistomis brittoni and Semiardistomis marani measurements are a subset of that of Semiardistomis flavipes specimens studied. Variation in this species is found in the microsculpture on the elytral disc which varies from being distinct on the entire surface to being present only marginally, in the extent of the elytral striae, and the size of the punctures. Such variation is seen even within populations from the same locality.

(Fig. 58). The range of this species extends in central South America from western Brazil southward and westward to Paraguay, south of the Tropic of Capricorn.