TABLE 3 in A new species of the genus Ostrovus Ricker, 1952 (Plecoptera: Perlodidae) from northern Kyushu, Japan, with notes on the male drumming signal

TABLE 3. Forewing length and two indices (distance between compound eyes / width of a compound eye in dorsal view; distance between posterior ocelli / distance between a posterior ocellus and a anterior ocellus) in the three species of Ostrovus (see Figure 45 for measurement points on the dorsal of the head). Values presented as mean ± SD and range. SpeciesForewing length (mm)Distance between compound eyes / Width of a compound eye in dorsal viewDistance between posterior ocelli / Distance between a posterior ocellus and an anterior ocellusMaleFemaleMaleFemaleMaleFemaleOstrovus kyushuensis sp. nov.13.2 ± 0.6 (12.0–14.0) n = 1014.0 ± 0.6 (13.0–15.0) n = 134.0 ± 0.2 (3.6–4.2) n = 124.0 ± 0.2 (3.6–4.3) n = 141.6 ± 0.1 (1.5–1.8) n = 121.6 ± 0.2 (1.3–1.9) n = 14Ostrovus mitsukonis11.7 ± 0.6 (10.5–13.0) n = 2612.6 ± 0.7 (11.0–14.0) n = 363.3 ± 0.2 (3.0–3.7) n = 163.3 ± 0.2 (3.1–3.9) n = 171.6 ± 0.3 (1.4–2.5) n = 161.6 ± 0.1 (1.4–1.8) n = 17Ostrovus nikkoensis13.7 ± 0.7 (12.8–14.8) n = 10– (14.0–15.3) n = 34.0 ± 0.2 (3.7–4.2) n = 9– (4.0–4.2) n = 31.6 ± 0.1 (1.4–1.7) n = 9– (1.5–1.6) n = 3