A review of the Chrysolina species – subgenus Stichoptera Motschulsky, 1860 – in Switzerland, with notes on distribution, conservation and preimaginal stages (Coleoptera, Chrysomelidae)
The species of the subgenus Stichoptera occurring in Switzerland are revised, based on a combination of literature data, old museum specimens and recent material. Four species, one with two subspecies, Chrysolina kuesteri (Helliesen, 1912), Ch. latecincta latecincta (Demaison, 1896), Ch. latecincta norica (Holdhaus, 1914), Ch. rossia (Illiger, 1802) and Ch. sanguinolenta (Linnaeus, 1758) are confirmed to occur in Switzerland, while Ch. gypsophilae (Küster, 1845) has to be excluded from the Swiss fauna due to insufficient evidence. Errors and unclarities in the older literature are discussed. Ch. kuesteri was found abundantly in central Valais, allowing some notes on its larval biology. Larvae of the alpine Ch. latecincta are also illustrated, along with notes on its habitat and some past and present distribution records. Illustrations for all Swiss members of the subgenus, as well as distribution maps with all confirmed records, are provided.
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