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 Helops punctatissimus Nabozhenko & Keskin, 2017 ( Fig. 8 ) Material. 2♂ , 2♀ ( SMNS ): Turkey , Bitlis Prov. , Reşadiye , Van Lake , 1– 17.06.2007 (leg. C. Reuter ) ; 4♂ , 3♀ ( ZDEU ): Turkey , Bitlis Prov. , Tatvan env., Küçüksu , 38°28ʹ05.91ʺN / 42°19ʹ21.68ʺE , 1770 m , 29.05.2021 (leg. B. Keskin , U. Çalışan, K . Yılmaz) . Note. This species was described based on a single male specimen. The newly collected material enables us to supplement the initial description with data on females. Brief description of female. Measurements: Y—1.36; PH —1.67; P w P l —1.17; E l E w —1.65; EH w —3.65; EP w — 1.3; EP l —2.55. Body much more robust than in male, strongly convex. Head, legs and scutellar shield blue, prothorax dark violet, pterothorax and abdomen dark-blue. Antennae short, not reaching base of pronotum; antennomere 11 asymmetric, with oblique apex. Pronotum slightly transverse, widest little behind middle. Elytra widest behind middle. Pro- and metatibiae straight, mesotibiae slightly bent. Protarsomeres 1–4 very short, transverse, but not widened as in males. Distribution and bionomics. This species was described from the surroundings of Tatvan based on a single male specimen, which was collected under the trunk of old Juniperus excelsa . After a long search, H. punctatissimus was not found further on junipers, however, numerous specimens were registered in 2021 on Quercus cerris L. around Tatvan.