Diplopherusa kitamurai Nakane, 1989

Murakami, Hiroyuki, 2016, Review of the generaDiplopherusa and Paracladiscus (Coleoptera: Cleridae: Tillinae) from Japan and Taiwan, with descriptions of two new species, Acta Entomologica Musei Nationalis Pragae 56 (2), pp. 725-741 : 730-732

Diplopherusa kitamurai Nakane, 1989

( Figs 3 , 12 , 19–21 , 27, 33, 39 , 47–48, 61)

Diplopherusa kitamurai Nakane, 1989: 149 (original description, incl. Figs: pls. 11, 22, 23). SATÔ (1998): 7 (noted, incl Figs 1–2 ); ÔMOMO (1999): 3 (faunistics); NAKAMURA (2001): 48 (faunistics).

Type locality. Japan, Okinawa Prefecture, Ishigaki Islands, Mt. Banna-dake.

Material examined. JAPAN: OKINAWA PREFECTURE: Yaeyama Islands: Ishigaki-jima, Omoto-dake , 10. vi. 1972, 1 J, Mizunuma leg. ( EUMJ) ; Ishigaki-jima, Banna-dake , 24.v.1978, 1 J, S. Kato leg. ( EUMJ) .

Supplementary description. Male ( Fig. 3 ). For full descriptions see NAKANE (1989). Approximate length ratio of antennomeres (n = 1): 3.9: 0.9: 4.8: 4.5: 4.7: 4.7: 4.7: 4.8: 4.8:

4.7: 8.1. Relative length ratio of rami of antennomeres III–X (n = 1): 1.0: 1.3: 1.4: 1.4: 1.3: 1.3: 1.3: 1.0.

Measurements (n = 2): EyW: 0.40 mm; EyD: 0.82–0.84 mm; BL: 7.40–7.53 mm; PL: 2.07 mm; PW: 1.40–1.43 mm; EL: 5.33–5.47 mm; EW: 1.73–1.77 mm. EyD/EyW: 2.05–2.10; PL/ PW: 1.44–1.48; EL/EW: 3.02–3.15; EL/PL: 2.58–2.65; EW/PW: 1.23–1.24.

Anterior plate of metendosternite ( Fig. 20 ) slightly extended anteriorly. Unguis with basal denticles; metatibiae ( Fig. 21 ) apically dilated to near apex, thence weakly narrowed, densely covered with pubescence on posterior inner surface.

Pygidium ( Fig. 27 ) round posteriorly; pygidial struts short. Sternite VIII ( Fig. 33 ) trapezoidal, weakly pigmented in middle. Spicular plate ( Fig. 39 ) with intraspicular plate.

Connecting membrane between tegmen and phallus in fully extended condition (Figs 47–48) vested with fine spines; tegmen shorter than phallus; phallobase cylindrical, membranous in ventral view; phallobasic apodeme elongate, rounded at apex; phallus divaricate in apical 1/4, dorsally with median orifice, rounded at apex.

Female. Unknown.

Differential diagnosis. This species is similar to D. yonaguniensis sp. nov., but can be distinguished by the following characters: punctation of pronotum dense; elytra black at apex; elytral rows of punctures extended before apex; EyD/EyW: 2.05–2.10; tibiae metallic dark blue and rather stout; male pygidial struts stout; sternite VIII trapezoidal in males.

Distribution. Japan: Okinawa Prefecture: Yaeyama Islands: Ishigaki-jima, Iriomote-jima ( ÔMOMO 1999), Hateruma-jima ( NAKAMURA 2001) ( Fig. 61 ).

Figures

Figs 1–5. Habitus of Diplopherusa spp (1–4 – male; 5 – female). 1 – Diplopherusa yonaguniensis sp. nov., holotype; 2 – D. ahsini Yang & Yang, 2013; 3 – D. kitamurai Nakane, 1989; 4–5 – D. shibatai (Miyatake, 1965). Scale bars: 2.0 mm.

Figs 10–18. Antennae (10–13, 15, 17 – male; 14, 16, 18 – female). 10 – Diplopherusa yonaguniensis sp. nov.; 11 – D. ahsini Yang & Yang, 2013; 12 – D. kitamurai Nakane, 1989; 13–14 – D. shibatai (Miyatake, 1965); 15–16 – Paracladiscus choui sp. nov.; 17–18 – P. atricolor Miyatake, 1965. Scale bars: 0.5 mm.

Figs 19–24. Labial palpi (19, 22), metendosternites (20, 23) and male hind tibiae (21, 24). 19–21 – Diplopherusa kitamurai Nakane, 1989; 22–24 – Paracladiscus choui sp.nov. Scale bars:0.25 mm (19–20, 22–23), 0.5 mm (21, 24).

Figs 25–42. Male pygidia (25–30), 8th sternites (31–36) and spicular forks (37–42). 25, 31, 37 – Diplopherusa yonaguniensis sp. nov.; 26, 32, 38 – D. ahsini Yang & Yang. 2013; 27, 33, 39 – D. kitamurai Nakane, 1989; 28, 34, 40 – D. shibatai (Miyatake, 1965); 29, 35, 41 – Paracladiscus choui sp. nov.; 30, 36, 42 – P. atricolor Miyatake, 1965. Scale bars: 0.25 mm (25–28, 30–34, 36–40, 42), 0.5 mm (29, 35, 41).

Fig. 61. Distribution map of Diplopherusa and Paracladiscus species in Japan and Taiwan.