Aproceros leucopoda Takeuchi, 1939

Aproceros leucopoda Takeuchi, 1939

Figs 1A–I View Fig , 3A, D View Fig , 4D–K View Fig

Aproceros leucopoda Takeuchi, 1939: 415–416 .

MATERIAL EXAMINED. Austria, Lower Austria, Traimauer, 48° 35’0N 15° 73’3E, VII.2013, E. Altenhofer leg., 6♀ (S008) ( ZISP). Russia, Belgorod Prov., vicinity of Nagolnoe village , steppe, 14. VI.2008, D. Kasparyan leg., 1♀ (S009) ( ZISP); Rostov Prov., Rassvet village , 2011 , K. Artokhin leg., 4♀ (S012, S052) ( ZISP); Krasnodar Terr .: without locality designation, 13. VI.2010, V. Shchurov leg., 1♀ (S046) ( ZISP); tract Balka Krutaya, near the estuary of the Eya River , 11.IV.2016 , V. Shchurov leg., 16♀ (S075, S058, S041, S032) ( ZISP); vicinity of Kazachiy village , 12.IV.2023 , V. Shchurov leg., 1♀ (S040) ( ZISP); Voronezh Prov., 25 km NE of Voronezh, vicinity of Venevitinovo village , 9. VI.2023, D. Kirpach leg., 1♀ (S072) ( ZISP), 1♀ ( VSU); Voronezh, 28. VI.2023, O. Selivanova leg., 1♀ ( VSU); Samara Prov., Zhiguli Natural Reserve, forest, Volga River , 2. VII. 2011, V. Chemyreva leg., 1♀ ( ZISP); Kemerovo Prov., vicinity of Novobachaty settlement, Bayatskie sopki, birch thicket, 23. VI.2015, A. Kostyunin leg., 1♀ (S045) ( ISEA); Khabarovsk Terr ., vicinity of Khabarovsk, elm, 16.VIII.1964 , P. Esipenko leg., 2♀ ( ZISP), same locality, 14.VII.1964, 24.VII.1968 & 3.VIII.1972 , A. Shtundyuk leg., 3♀ ( ISEA); Bolshekhekhtsirskiy Natural Reserve, Cordon Bychikha , 26.V.2018, 28.V.2021 (S035) & 30. VI.2021 (S037), V. Dubatolov leg., 3♀ ( ISEA); Anyuyskiy National Park, Cordon Nilo , 49°15’N 137°16’E, 24–25. GoogleMaps VII. 2018, V. Dubatolov leg., 1♀ ( ISEA); Primorskiy Terr.: 20 km S of Ussuriysk, Gornotayezhnaya Station , 31 . VII & 4.VIII.1991 , S. Belokobylskij leg., 5♀ ( ZISP); Arsenyev, Sky-Base “Bodrost’”, 26. V.2016, K. Kramp, M. Prous & A. Taeger leg., 1♀ (S047) ( ZISP); Blue Ridge , 40 km S of Arsenyev, 1–4. VII.1999, V. Krivokhvatskiy & O. Ovchinnikova leg., 2♀ ( ZISP); vicinity of Spassk-Dal’niy, 23. VII.1991,

18.VII.1995, 8.VIII.1996, 22.VII.1998, 10.VII.2001, 26.VI.2003, & 20. VII .2006 (S010), S. Belokobylskij leg., 10♀ ( ZISP), same locality, 26. VII .1985 , D. Kasparyan leg., 1♀ ( ZISP); Sudzukhinskiy (= Ussuriyskiy) Natural Reserve, 4.VIII.1972, V . Kuslitsky leg., 1♀ ( ZISP); vicinity of Barabash-Levada , floodplain forest , 27. VI .1980 , G. Krivolutskaya leg., 1♀ ( ZISP); vicinity of Vityaz settlement, 4.VIII.1982, I. Kerzhner leg., 1♀ ( ZISP); Ussuriyskiy Natural Reserve , Kamenushka –Kaymanovka , 31. VII .2008 , A. Khalaim leg., 2♀ (S002) ( ZISP); 10 km SW of Chernigovka , slopes with oak and pine, 26. VII .1996 , S. Belokobylskij leg., 1♀ ( ZISP); without locality designation, 30. VI & 22. VII .1960 , Kolyvanova leg., 2♀ ( ZMMU), 2♀ ( FSCV); Partizansk , 3.VIII.1940, A. Romanov leg., 1♀ ( ZMMU); “Kedrovaya Pad’ ” Natural Reserve , 9. V.1983, V. Zlobin leg. & 30.VIII.1995, S. Belokobylskij leg., 3♀ ( ZISP); vicinity of Ryazanovka , 9. VII .1982 , I. Kerzhner leg., 2♀ ( ZISP); vicinity of Anisimovka , 28. V .1974 , Berezantsev leg., 1♀ ( ZISP); vicinity of Lazo village : 1–10.VII.2006, 6– 10.VI.2008, 16–30.IV.2008 (S042), V . Shokhrin leg., 3♀ ( ZISP); Lazovskiy Natural Reserve : cordon America 19–23. VI .05, V. Shokhrin leg., 1♀ ( ZISP), Proselochnaya Bay , 25. VII .2008 , Yu. Sundukov leg., 1♀ (S003) ( ZISP); vicinity of Vladivostok , Sputnik, VII .2024 , D. Ryaskin leg., 1♀ ( ZISP); vicinity of Derchez village , floodplain of Bolshaya Usurka River, 7–15.VIII.2023, M. Sergeev leg., 1♀ (S044) ( ZISP) .

REDESCRIPTION. Female (after Takeuchi, 1939 with additions). Body length 5.8–6.9 mm. Body black, shining, without metallic lustre; labrum dark brown, mandibular apices brown, pronotum partly brownish. Antennae dark brown, scapus light. Legs white, coxae, trochanters and femora more or less yellowish, bases of coxae black, apex of hind tibia and all spurs darkened. Wings faintly evenly infuscated. Veins and pterostigma dark brown. Head entirely (OR distinctly) smooth, unpunctured, its width from above about 3.0 times medial length, strongly constricted behind eyes (dorsal view). Anterior margin of clypeus almost truncated. Supraclipeal area with sharp median keel. Median fossa weak. POL: OOL: OCL = 1.7: 2: 1. Malar space broad, its length approximately equal to length of scapus and pedicellum combined. Antennae short, approximately as long as width of head. Thorax smooth, but not strongly shining; median furrow of prescutum weak.

Variability.

Spring generation. Head behind eyes (dorsal view) weakly constricted or subparallel. Postocellular area clearly bounded by furrows. POL: OOL: OCL = 1: 1.3: 1. Body entirely black. Antennae black or brownish-black. Legs mostly white; coxae, bases or most part of fore and middle, but sometimes almost all femora except their apices black; apices of tarsi and hind tibiae often darkened.

Summer generation. Head behind eyes (dorsal view) subparallel or slightly expanded. Postocellular area clearly bounded by furrows. POL: OOL: OCL = 1.4: 1.6: 1. Due to the high variability of colouration of specimens of summer generations, we apply the concept of colour forms in this paper.

Form A. Body dark brown or black. Antenna completely black, rarely dark brown. Legs yellowish-white, less often fore and middle femora black at base.

Form B. Body entirely reddish or light brown. Head dark brown, rarely black. Mesonotum with variable dark pattern, often with dark brown spots on middle and lateral or only lateral lobes. Sometimes most of mesonotum dark brown. Tegulae and saw sheath brownish. All antennal segments reddish. Legs entirely white.

Male. Unknown. Probably an obligate parthenogenetic species.

DISTRIBUTION. Russia [ Leningrad Prov. (this is doubtful record and require confirmation), Moscow Prov., * Belgorod Prov., Republic of Krym, Rostov Prov., Krasnodar Terr., Stavropol Terr., Voronezh Prov., Kabardino-Balkarian Republic, Republic of North Ossetia – Alania, Ulyanovsk Prov., * Saratov Prov. (iNaturalist, 2020), Samara Prov., Kemerovo Prov., * Khabarovsk Terr., Primorskiy Terr.], Austria, Belgium, Bosnia and Herzegovina, Bulgaria, Canada, China, Croatia, Czech Republic, Estonia, Germany, Hungary, Italy, Japan, Kazakhstan, Moldova, Poland, Netherlands, Romania, Serbia, Slovakia, Slovenia, Ukraine, USA, Yugoslavia.

REMARKS. The holotype of A. leucopoda (Fig. 9 in Blank et al., 2010) preserved at Entomological Laboratory , Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka, Japan .

The records of this species in the Leningrad Province (Shevchenko & Stcherbakova, 2020), mentioned as the most northern distribution in Russia ( Kondratyeva et al., 2023), do not have precise indications and need to be verified. Single specimens were observed in St Petersburg park in 2017 on saplings of Resista-elm ( Ulmus resista ) imported from Germany, in the year of planting. Further monitoring was not carried out, and the planted trees died (L.N. Shcherbakova, personal communication). It remains unclear whether this species has survived in St Petersburg. No other information is available.