Allecula ussuriensis Borchmann, 1937

Nabozhenko, M. V., 2025, COMPOSITION AND DISTRIBUTION OF THE GENUS ALLECULA FABRICIUS, 1801 (COLEOPTERA: TENEBRIONIDAE) IN RUSSIA WITH DESCRIPTION OF A NEW SPECIES, Far Eastern Entomologist 518, pp. 1-13 : 4-5

Allecula ussuriensis Borchmann, 1937

= Allecula mandshurica Mařan, 1940 .

Figs 1–12

MATERIAL EXAMINED (only for the Russian Far East). Russia: Primorsky Krai; Shkotovsky Distr., 30 km W of Partizansk, Anisimovka village, light trap, 24.VIII 2022, 1♂ ( I.D. Solodkiy) ( ZIN); same locality and collector, 13.VIII 2023, 2♂, 1♀ ( ZIN); Partizansky Distr. , Vasil’evka village , 7.VIII 2023 1♂ ( I.D. Solodkiy) ( PCMN); Vladivostok, Okeansky ridge, light trap, 11.VIII 2023, 2♂, 1♀, ( S. Veriga) ( PCMN); Krasnoarmeysky Distr. , Dersu env., 45°45ʹN, 135°19ʹE, 9–15. VIII 2023, 3♂, 2♀, ( M.E. Sergeev) ( PCMN) .

NOTES. We studied specimens of A. ussuriensis from the type locality and several other localities and didn’t find any differences between one male from Crimea (listed as Allecula morio in Nabozhenko & Gadaborsheva (2023)) and Far Eastern specimens. They have the same OI, measurements of antennomeres, the shape and puncturation of the pronotum, dull pronotum and elytra and shiny head. The shape of the male VIII inner sternite, spiculum gastrale and the aedeagus are identical in both species. The shape of the aedeagus in lateral view is slightly different in specimen from Crimea, due to desiccation of the parameres. There are two explanations for this gap in the range: the introduction of the species from the Far East with timber or historical disjunction.

Disjuctions in the nemoral animal ranges in the Palaearctic are well known, including among insects. Gorodkov (1984) called such ranges “Trans-Eurasian nemoral”. He associated these disjunctions with the disappearance of broad-leaved forests in Siberia during the glacial periods in Pleistocene. Dubatolov and Kosterin (1998, 2000) discussed in details disjunctions of nemoral ranges on the example of Lepidoptera. They called such ranges as amphipalaearctic and showed that the ranges of elm, linden and oak were restored in Siberia during interglacial periods and were continuous from Atlantic to Pacific oceans.

DISTRIBUTION. This species with the amphipalaearctic range is widely distributed in the Russian Far East (south of Khabarovsky Krai and Primorsky Krai), Korean peninsula and Ulleungdo Island ( Lee et al., 2024), NE China (Mařan, 1940). One male was collected in Crimea ( Nabozhenko & Gadaborsheva, 2023).

Figures

Figs 1–6. Allecula ussuriensis, habitus, details. 1, 3, 4 – male from the Far East (type locality of A. ussuriensis: Partizansk = Suchan); 5, 6 – male from Crimea; 2 – female (Primorsky Krai: Dersu); 3, 6 – head and pronotum; 4, 5 – elytra.

Figs 7–12. Allecula ussuriensis, male genitalia. 7–10 – male from the Far East (type locality of A. ussuriensis: Partizansk = Suchan); 11, 12 – male from Crimea; 7, 11 – aedeagus ventral; 8, 12 – aedeagus lateral; 9 – male inner sternite and tergite VIII; 10 – spiculum gastrale.