TABLE 1 in A new species of the broad-shouldered water strider genus Microvelia Westwood (Hemiptera: Heteroptera: Veliidae) from the Ogasawara (Bonin) Islands, Japan

TABLE 1. Measurements of Microvelia (Picaultia) yoshitomii Watanabe, sp. nov. Unit: mm, range (mean ± SD).
StructureApterous male (N = 3)Apterous female (N = 3)Macropterous male (N = 1)Macropterous female (N = 3)Body length1.49–1.51 (1.50 ± 0.01)1.67–1.84 (1.77 ± 0.07)1.711.80–1.89 (1.84 ± 0.04)Body width0.58 (0.58 ± 0.00)0.70–0.81 (0.76 ± 0.04)0.740.81–0.85 (0.82 ± 0.02)Head length0.28–0.31 (0.30 ± 0.01)0.31–0.35 (0.34 ± 0.02)--Head width0.44–0.45 (0.45 ± 0.00)0.46–0.51 (0.49 ± 0.02)--Interocular distance0.23–0.24 (0.24 ± 0.00)0.27–0.29 (0.28 ± 0.01)--Antennal segment I0.15–0.16 (0.15 ± 0.00)0.17–0.19 (0.18 ± 0.01)--Antennal segment II0.14–0.15 (0.14 ± 0.00)0.15–0.16 (0.16 ± 0.01)--Antennal segment III0.18–0.20 (0.19 ± 0.01)0.19–0.23 (0.21 ± 0.01)--Antennal segment IV0.28–0.30 (0.29 ± 0.01)0.31–0.33 (0.32 ± 0.01)--Pronotum length0.34–0.36 (0.35 ± 0.01)0.35–0.42 (0.39 ± 0.03)0.570.60–0.65 (0.62 ± 0.02)Pronotum width0.54–0.56 (0.55 ± 0.01)0.64–0.71 (0.68 ± 0.03)0.740.81–0.85 (0.82 ± 0.02)Fore femur0.39–0.45 (0.42 ± 0.02)0.42–0.47 (0.45 ± 0.02)--Fore tibia0.33–0.37 (0.35 ± 0.02)0.32–0.36 (0.34 ± 0.01)--Fore tarsus0.21–0.23 (0.22 ± 0.01)0.21–0.23 (0.22 ± 0.01)--Middle femur0.44–0.54 (0.48 ± 0.05)0.48–0.53 (0.51 ± 0.02)--Middle tibia0.40–0.45 (0.42 ± 0.02)0.41–0.45 (0.43 ± 0.02)--Middle tarsomere I0.10–0.12 (0.11 ± 0.01)0.12–0.13 (0.13 ± 0.00)--Middle tarsomere II0.15–0.16 (0.16 ± 0.00)0.16 (0.16 ± 0.00)--Hind femur0.51–0.56 (0.54 ± 0.02)0.56–0.63 (0.60 ± 0.03)--Hind tibia0.51–0.57 (0.54 ± 0.02)0.61–0.67 (0.65 ± 0.03)--Hind tarsomere I0.13–0.14 (0.14 ± 0.01)0.14–0.15 (0.15 ± 0.01)--Hind tarsomere II0.14–0.16 (0.15 ± 0.01)0.16–0.17 (0.17 ± 0.00)--