A new genus Viperinus Park with descriptions of two new species, and two new species of the genus Protolychnis Meyrick, 1925 (Lepidoptera, Gelechioidea, Lecithoceridae) in Kenya and Tanzania, with a checklist of the world species Author Park, Kyu-Tek 0000-0001-9933-4497 Bioresource and Environmental Center, Incheon National University, Incheon, 22012 Korea & ktpark 02 @ gmail. com; https: // orcid. org / 0000 - 0001 - 9933 - 4497 ktpark02@gmail.com Author Koo, Jun-Mo 0000-0003-2639-6456 Department of Plant Medicine, Chungbuk National University, Cheongju, CB, 28644 Korea & taran 9539 @ gmail. com; https: // orcid. org / 0000 - 0003 - 2639 - 6456 taran9539@gmail.com text Zootaxa 2021 2021-06-15 4985 3 359 370 journal article 5705 10.11646/zootaxa.4985.3.3 7b87d5eb-e754-418f-8673-363bc07712b3 1175-5326 4956106 154BD3FC-121C-439A-B041-B2D4AF5E9D6C Protolychnis petiliella Park, 2020 Protolychnis petiliella Park, 2020: 270 . Material examined. • 1♂ , Tanzania , Tamga , Amani 5°6′2″S 38°39′10″E , 1,500 ft , 25.iv.2001 , DJL Agassiz, gen. slide no. CIS-7476, in NHMUK . Diagnosis. This species is superficially very similar to P. maculata , P. natalensis and P. oculiella , but it can be distinguished from the species mentioned above by the male genitalia: 1) uncus more clavate distally with rounded apex, but relatively less clavate distally in P. maculata , acute distally in P. natalensis and gradually narrowed toward rounded apex in P. oculiella ; 2) two caudal processes of juxta symmetrical, much longer than tegumen, sickle-shaped with pointed apex, but relatively squat, nearly same length as teguman in P. maculata , asymmetrical, left one much longer than right one, relatively squat in P. natalensis ; 3) saccus long, sharply narrowed toward basal 1/2, but much wider, gradually narrowed distally in P. maculata and P. natalensis and much shorter, about 0.5 times in P. oculiella ; 4) aedeagus narrow and sharply arched in basal 2/5, whereas in the latter, gently arched. Remarks. The species was described from Uganda and is herein reported for the first time from Tanzania . The habitus and genitalia of both sexes were recently illustrated by Park & Koo (2020) . Distribution. Uganda , Tanzania ( new record ).