Olophrum vicinum Sharp, 1889

Shavrin, Alexey V., 2025, On some species of the genus Olophrum Erichson, 1839 (Coleoptera: Omaliinae) of the Eastern Palaearctic region, Zootaxa 5666 (1), pp. 93-104 : 102

Olophrum vicinum Sharp, 1889

( Figs 6 , 16–18 )

Olophrum vicinum Sharp, 1889: 472 ; Scheerpeltz 1929: 103, Watanabe 1990: 133.

Type material examined. Lectotype (here designated) of O. vicinum Sharp, 1889 ♂ ( Fig. 6 ): 1 ♂ [handwritten text under the glued on the card specimen: ‘Olophrum | vicinum. | Type D.S. | Japan. Lewis’]: ‘SYN- | TYPE’ <round printed label with blue margin>, ‘Type’ <round printed label with red margin>, ‘Japan. [underlined by yellow] | G. Lewis.’ <printed>, ‘Sharp Coll | 1905-313.’ <printed>, ‘ NHMUK015011174 ’ <printed, with barcode on the right side of the label>, ‘LECTOTYPE’ <red, printed>, ‘ Olophrum | vicinum Sharp, 1889 | Shavrin A.V. det. 2025’ <printed> ( BMNH).

Paralectotypes: 1 ♂ (dissected; left hind tibia and tarsus missing): ‘SYN- | TYPE’ <round label with blue margin>, ‘ Japan [underlined by yellow] | G. Lewis. | 1910-320.’ <printed>, ‘Olophrum | vicinum’ <handwriten>, ‘ NHMUK015011175 ’ <printed, with barcode on the right side of the label> ( BMNH); 1 ♂: first two labels as the previous, ‘ Sharp Coll | 1905-313.’ <printed>, ‘Olophrum | vicinum’ <handwriten>, ‘Photographiert | 9-17.XI.1928 [handwritten] | O. Scheerpeltz’ <pink, printed>, ‘ NHMUK015011176 ’ <printed, with barcode on the right side of the label> ( BMNH). Both paralectotypes with additional printed label: ‘ Olophrum | vicinum Sharp, 1889 | Shavrin A.V. det. 2025’

Additional material examined. JAPAN: HONSHU: 1 ♀: ‘JAPAN: Honshu B.M. 1980-49 2 P. M. Hammond’, ‘ Gumma Pref. Mt. Hotaka (foot) ca 1300 m. 14-15.viii.80’, ‘ NHMUK015011190 ’ ( BMNH) .

Remarks. Olophrum vicinum was originally described from “Iwakisan” based on four specimens. I studied three syntypes from BMNH (see above), and one male ( Fig. 6 ) of them I designated here as the lectotype in order to fix the identity of the species. It was redescribed by Scheerpeltz (1929) and Watanbe (1990). Watanabe (1990) figured the aedeagus of the species (see Figs. 131–133 in Watanabe (1990)). Measurements of the studied specimens (n=4): HW: 0.79–0.84; HL: 0.54–0.61; OL: 0.22–0.21; TL: 0.10–0.12;AL (lectotype): 1.80; PL: 0.69–0.75; PWmax: 1.16–1.28; PWmin: 1.06–1.11; ESL: 1.42–1.66; EW: 1.86–1.89; MTbL (lectotype): 1.00; MTrL (lectotype): 0.45 (MTrL 1–4: 0.25; MTrL 5: 0.20); AW: 1.61–1.74; AedL: 0.85; BL: 3.60–4.20 (lectotype: 4.14). Habitus as in Figs 6 , 16 . Aedeagus as in Figs 17–18 .

Figures

FIGURES 1–6. Habitus of Olophrum: 1–O. mutatum (Hubei), 2–O. mutatum (holotype), 3–O. scheerpeltzi (holotype), 4–O. japonicum (holotype), 5–O. simplex (paralectotype), 6–O. vicinum (lectotype). Scale bar: 1.0 mm.

FIGURES 16–18. Olophrum vicinum: 16–habitus (Honshu: Mt. Hotaka), 17–aedeagus, parameral view (paralectotype), 18– aedeagus, lateral view (paralectotype). Scale bar: 0.1 mm.