Review of the generaDiplopherusa and Paracladiscus (Coleoptera: Cleridae: Tillinae) from Japan and Taiwan, with descriptions of two new species Author Murakami, Hiroyuki text Acta Entomologica Musei Nationalis Pragae 2016 2016-11-15 56 2 725 741 journal article 10.5281/zenodo.5307482 0374-1036 5307482 D9281F86-E19D-4EA5-8173-DAB15ED8703B Diplopherusa yonaguniensis sp. nov. ( Figs 1 , 10 , 25, 31, 37 , 43, 44, 61) Type locality. Japan , Okinawa Prefecture , Yaeyama Islands, Yonaguni-jima. Type material. HOLOTYPE : J, ‘[JPN: Okinawa ] alt. 70m (light) | Mandabaru-shinrinkôen , | Yonaguni-cho , Yaeyama-gun | 24°27′31.77″N 122°58′31.31″E | 2–V–2016 Hiroshi Ikeda leg.’ ( EUMJ ) . PARATYPE : 1J, ‘Sonai | Yonagunijima | 21. V. 1989 | N. Ohbayashi leg.’ ( EUMJ ). Description. Male ( Fig. 1 ). Head, pronotum, pterothorax in ventral view, and femora dark blue and moderately shiny; basal 1/3 of elytra yellow; antennae, apical 2/3 of elytra, tibiae, tarsi brownish-black. Measurements (n = 2): EyW: 0.30 mm ; EyD: 0.70–0.72 mm ; BL: 5.87–6.37 mm ; PL: 1.55–1.73 mm ; PW: 1.13–1.18 mm ; EL: 4.32–4.64 mm ; EW: 1.40–1.43 mm . Head convex dorsally, with fine setigerous punctation; EyD/EyW: 2.37–2.40. Terminal palpomeres of maxillary palpi short and digitiform; those of labial palpi widely triangular, their length equal to 1/3 of width of apical margin of terminal palpomeres. Antennae ( Fig. 10 ) longer than total length of head and pronotum combined; antennomere I swollen and bent; II compact; III–X biramous; XI flattened, fusiform. Approximate length ratio of antennomeres (n = 1): 2.3: 1.0: 2.8: 2.6: 3.1: 2.8: 2.8: 2.8: 2.8: 2.6: 5.6. Relative length ratio of rami of antennomeres III–X (n = 1): 1.0: 1.3: 1.6: 1.5: 1.5: 1.4: 1.4: 1.2. Pronotum widest before apex, constricted in basal 1/3; surface covered with fine and rather sparsely distributed setigerous punctures; pronotal projections reaching to procoxal projections; PL/PW: 1.37–1.47. Elytra elongate, mostly parallel-sided, widest at humeri, large and deep punctation arranged in rows of punctures not extended to apex; intervals slightly smaller than puncture diameter and with pubescence; EL/EW: 3.09–3.26, EL/PL: 2.69–2.79, EW/PW: 1.21–1.24. Unguis with basal denticles; metatibiae apically dilated to near apex, thence weakly nar- rowed, densely covered with pubescence on posterior inner surface. Pygidium ( Fig. 25 ) rounded posteriorly; pygidial struts anteriorly extended. Sternite VIII ( Fig. 31 ) semicircular, weakly pigmented in middle. Spicular fork ( Fig. 37 ) with intraspicular plate. Connecting membrane between tegmen and phallus with fine spines (Figs 43–44); tegmen shorter than phallus; phallobasic struts developed; phallobasic apodeme slightly longer than phallobase. Female . Unknown. Differential diagnosis. The new species is similar to D. kitamurai , but is distinguished by the following characters: punctation of pronotum sparse; apical half of elytra black; EyD/EyW: 2.40; tibiae brownish black and rather elongate; male pygidial struts extended anteriorly; abdominal sternite VIII semicircular in male. Etymology. The species name is derived from the type locality, Yonaguni-jima. Distribution. Japan : Okinawa Prefecture : Yaeyama Islands: Yonaguni-jima ( Fig. 61 ).