Chrysolina (Stichoptera) rossia (Illiger, 1802)

Germann, Christoph, Geiser, Michael & Borer, Matthias, 2023, A review of the Chrysolina species - subgenus Stichoptera Motschulsky, 1860 - in Switzerland, with notes on distribution, conservation and preimaginal stages (Coleoptera, Chrysomelidae), Alpine Entomology 7, pp. 69-82 : 69

Chrysolina (Stichoptera) rossia (Illiger, 1802)

Note.

A species primarily distributed in the Balkan Peninsula and Italy but reaching also France and Central Europe. Kippenberg (2010) lists it for Austria, Bosnia-Herzegovina, Bulgaria, Croatia, Czech Republic, France, Greece, Hungary, Italy, Romania, Slovakia, Slovenia, Switzerland and Serbia. In Switzerland, it is restricted to Ticino.

Material.

1 ex. TI, Lugano [without date nor collector] (MHNG) . 1 ex. Lugano [without date], leg. and coll. Andrewes (BMNH) . 1 ex.: Castello [Castel San Pietro], [without date], COFO6475, GBIFCH00227782, coll. Fontana (MCSN) . 4 ex.: Castello [Castel San Pietro], [without date], COFO6478, GBIFCH00227788, coll. Fontana (MCSN) . 2 ex.: Castello [Castel San Pietro], [without date], COFO6479, GBIFCH00227789, coll. Fontana (MCSN) . 1 ex.: Castello [Castel San Pietro], [without date], COFO6479, GBIFCH00227790, coll. Fontana (MCSN) . 1 ex. Lugano , Windrath (MHNG) . 1 ex. VS, Martigny [without date nor collector, misplaced or mislabelled specimen] (MHNG) . 1 ex. Capolago-Meride , 7.IX.[19]19, Fruhstorfer (MHNG) . 2 ex. [TI] Monte Bre , 30.9.[19]22, coll. E. Handschin (NMB) . 1 ex. [TI] Rancate , 3.10.[19]22, coll. E. Handschin (NMB) . 1 ex.: Castello [Castel San Pietro], 10.1923, COFO6479, GBIFCH00227791, coll. Fontana (MCSN) . 1 ex.: Castello [Castel San Pietro], 6.2 [5?].1926, COFO6475, GBIFCH00227783, coll. Fontana (MCSN) . 1 ex.: Chiasso , 3.6.1928, COFO6473, GBIFCH00227775, coll. Fontana (MCSN) . 1 ex.: Chiasso , 10.10.1931, COFO6473, GBIFCH00227776, coll. Fontana (MCSN) . 1 ex.: Castello [Castel San Pietro], 3.7.1932, COFO6475, GBIFCH00227784, coll. Fontana (MCSN) . 1 ex.: Castello [Castel San Pietro], 11.5.1932, COFO6475, GBIFCH00227785, coll. Fontana (MCSN) . 2 ex.: Frasco , 6.10.1932, COFO6477, GBIFCH00227787, coll. Fontana (MCSN) . 1 ex.: Castello [Castel San Pietro], 20.6.1937, COFO6474, GBIFCH00227781, coll. Fontana (MCSN) . 1 ex.: Chiasso , 21.6.1939, COFO6473, GBIFCH00227777, coll. Fontana (MCSN) . 1 ex.: Castello [Castel San Pietro], 4.3.1939, COFO6474, GBIFCH00227778, coll. Fontana (MCSN) . 1 ex.: Castello [Castel San Pietro], 9.6.1939, COFO6474, GBIFCH00227779, coll. Fontana (MCSN) . 1 ex.: Castello [Castel San Pietro], 16.6.1939, COFO6474, GBIFCH00227780, coll. Fontana (MCSN) . 1 ex. Kt. Tess. Salorino 4.[19]40, leg. and coll. J. Lautner (NMB) . 6 ex. Kt. Tess. Salorino 8.[19]40, leg. and coll. J. Lautner (NMB) . 3 ex.: Chiasso , 29.5.1944, COFO6476, GBIFCH00227786, coll. Fontana (MCSN) . 1 ex. [TI] Muzano [Muzzano] 8.10.[19]50, leg. and coll. E. Handschin (NMBA) . 2 ex. 1 ex. Comer See [Lago di Como, TI?] coll. Killias, in coll. J.B. Jörger (NMB) . 1 ex. TI, Bogno , 5.8.1963, leg. and coll. P. Scherler (NMBE) . 1 ex. TI, Rovio , 26.8.1971, leg. and coll. P. Scherler (NMBE) . 1 ex. TI, Rancate , 30.7.1975, leg. and coll. P. Scherler (NMBE) . 2 ex. TI, Melano , 29.8.1989, leg. and coll. P. Scherler (NMBE) . 1 ex.: Helv , TI, Mendrisio , Besazio, Vigna, 718130/ 80940, 392 m, 07.X.2002, leg. C. Monnerat, det. M. Borer (cCM) . 1 ex.: Helv , TI, Chiasso, Pedrinate, 721750/76500, 07.VIII.2003, leg. C. Monnerat, det. M. Borer (cCM) . 1 ex.: Helv , TI, Mendrisio, Meride, village, 717625/83270, 05.V.2005, leg. C. Monnerat, det. M. Borer (cCM) . 1 ex.: Helv , TI, Stabio, Gerette, 715500/77500, 13.X.2007, leg. C. Monnerat, det. M. Borer (cCM) . 1 ex. TI, Meride , 550 m, 718030/ 083360, 4.6.2013, leg. Y. Chittaro, det. M. Borer (cYC) . 1 ex.: Helv , TI, Chiasso , Pedrinate, San Stefano, 721818/ 76517, 450 m, 05.V.2014, leg. C. Monnerat, det. M. Borer (cCM) . 2 ex.: Helv. , TI, Rancate, 718274/ 81169, 396 m, 31.V.2016, leg. Y. Chittaro, det. M. Borer 2019 (cYC) .

As this species is recognisable even on photographs, recent " citizen science " data are usually trustworthy. iNaturalist (https://www.inaturalist.org/, accessed 1th February 2023) provide supplementary observations (without voucher specimen) from Chiasso (30th April 2015, 27th April 2020), Brissago (19th October 2016), Giumaglio (24th December 2020) and Aquila (30th May 2022).