Two new species and new records of lichen-feeding darkling beetles (Coleoptera: Tenebrionidae: Helopini) from Turkey with notes on bionomics and trophic relations Author Nabozhenko, Maxim V. Precaspian Institute of Biological Resources of the Daghestan Federal Research Centre of the Russian Academy of Sciences, M. Gadzhiev str. 45, Makhachkala, Republic of Dagestan, 367000, Russia. & Dagestan State University, M. Gadzhiev str. 43 a, Makhachkala, Republic of Dagestan, 367000, Russia. Author Keskin, Bekir 0000-0002-6662-8736 Ege University, Bornova-Izmir 35100 Turkey. & bekir. keskin @ ege. edu. tr; https: // orcid. org / 0000 - 0002 - 6662 - 8736 bekir.keskin@ege.edu.tr Author Keskin, Nurşen Alpagut 0000-0001-6614-8815 Ege University, Bornova-Izmir 35100 Turkey. & nursen. alpagut @ ege. edu. tr; https: // orcid. org / 0000 - 0001 - 6614 - 8815 nursen.alpagut@ege.edu.tr Author Gagarina, Ludmila V. 0000-0003-3213-1673 Komarov Botanical Institute of the Russian Academy of Sciences, Professor Popov str. 2, St Petersburg, 197376, Russia. gagarinalv @ binran. ru; https: // orcid. org / 0000 - 0003 - 3213 - 1673 gagarinalv@binran.ru Author Nabozhenko, Svetlana Rostov Branch of the Russian Entomological Society, Rostov-on-Don, Russia. text Zootaxa 2021 2021-10-20 5057 1 69 86 journal article 3907 10.11646/zootaxa.5057.1.4 4becfc46-f283-4a33-9f7a-2b4d041a7118 1175-5326 5585534 E20C7DF7-5EFC-40E1-BBE2-CFDAA05672AE Catomus hesperides ( Reiche, 1861 ) Material. 1♂ , 1♀ ( PCMN ) , 1♂ , 7♀ ( ZDEU ): Turkey , Mersin Prov. , Silifke , west city exit, 36°22ʹ37.73ʺN / 33°53ʹ43.14ʺE , 116 m , 29.03.2021 (leg. B. Keskin , M. & S. Nabozhenko ) ; 1♂ , 1♀ ( PCMN ) , 1♂ , 1♀ ( ZDEU ): Turkey , Mersin Prov. , Narlıkuyu , 36°26ʹ18.72ʺN / 34°06ʹ32.91ʺE , 44 m , 30.03.2021 (leg. B. Keskin , M. & S. Nabozhenko ) ; 5♂ , 2♀ ( PCMN ) , 1♂ , 4♀ ( ZDEU ): Turkey , Kahramanmaraş Prov. , Başkonuş Yaylası , 37°34ʹ12.47ʺN / 36°34ʹ58.79ʺE , 1300 m , 18.04.2021 (leg. B. Keskin , M. & S. Nabozhenko ) ; 48♂ , 30♀ ( PCMN ): Turkey , Adana Prov. , Çelemli , 36°50ʹ10.86ʺN / 35°40ʹ10.89ʺE , 180 m , 3.04.2021 (leg. B. Keskin , M. & S. Nabozhenko ) ; 7♂ , 6♀ ( PCMN ): Turkey , Adıyaman Prov. , Nemrut Dağı , Karadut , 37°56ʹ17.65ʺN / 38°45ʹ55.08ʺE , 1230 m , 5 km lower Eskikahta , 37°56ʹ35.16ʺN / 38°40ʹ21.17ʺ E , 807 m , 9– 10.04.2021 (leg. B. Keskin , M. & S. Nabozhenko ) ; 2♂ , 2♀ ( ZDEU ): Turkey , Hatay Prov. , Samandağ , above Kapısuyu , 36°8ʹ2.14ʺN / 35°57ʹ7.51ʺE , 400 m , 7.04.2021 (leg. B. Keskin , M. & S. Nabozhenko ) . Distribution and bionomics. This very common species is widely distributed from Mediterranean Turkey to Israel (Nabozhenko 2020). Nemrut Dağ ( Adıyaman , Turkey ) is the most eastern known locality of C. hesperides . It occurs in natural and agricultural habitats in many landscapes. In 2021 this Catomus species was collected on Сeratonia siliqua L. and Pinus brutia in Mersin Province , on Cedrus libani in Kahramanmaraş Province , on Olea europaea L. in Adana Province ( Fig. 7C ), and on Quercus branti in Adıyaman Province . We registered Xanthoria sp. as one of the host lichens. The host lichen of the genus Xanthoria was registered for C. hesperides on Quercus infectoria in Cyprus by colleagues from the University of Cyprus , Konstantinos Ntatsopoulos, and Loudmila Jelinscaia Lagou (personal communication, 20 May 2021 ). Catomus hesperides is the second species of Helopini after Nalassus faldermanni ( Faldermann, 1837 ) , which feeds on toxic Xanthoria sp. lichens.