Review of the Afrotropical members of the genus Eridachtha Meyrick, 1910 (Lepidoptera: Lecithoceridae: Lecithocerinae), with descriptions of 12 new species Author Park, Kyu-Tek 0000-0001-9933-4497 108 - 508, Semteo Village, Irwon-ro 120, Gangnam-gu, Seoul 06356, Korea ktpark02@gmail.com Author Minet, Joël 0000-0002-4404-1635 Muséum National d’Histoire Naturelle, ISYEB, Entomologie (C. P. 50), 45, rue Buffon, F- 75005 Paris, France joel.minet@mnhn.fr Author Koo, Jun-Mo 0000-0003-2639-6456 Department of Plant Medicine, Chungbuk National University, Cheongju, CB 28644, Korea taran9539@gmail.com Author Yu, Tae-Uk 0000-0002-1850-7024 Department of Plant Medicine, Chungbuk National University, Cheongju, CB 28644, Korea altmxjdb11@naver.com text Zootaxa 2024 2024-06-12 5468 2 275 307 http://dx.doi.org/10.11646/zootaxa.5468.2.3 journal article 298443 10.11646/zootaxa.5468.2.3 bf37390a-e6e9-4373-8f79-2e1cc02e7fd0 1175-5326 11615739 1924D16F-7C42-470D-9405-F23B424DD058 8. Eridachtha pholexana Park , sp. nov. LSID: urn:lsid:zoobank.org:act: C7312DA3-B968-4A0D-9592-AA68306168F6 ( Fig. 15 ) Type specimen. Holotype male: Uganda , Kibale Nat. Park, Biol. Field Stn., Kibale Nat. Park, Biol. Field Stn., gen. slide no. CIS-7262 (wing slide no. CIS-7262-w), in MfN . FIGURE 15 . Eridachtha pholexana Park , sp. nov. : A, male, holotype; B, head with labial palpus; C, forewing venation (wing slide no. CIS-7262-w); D, male genitalia of holotype (slide no. CIS-7262); E, aedeagus; F, pregenital segments. Scale bar for D and E: 0.5 mm. Diagnosis. The new species can be distinguished from its allies by the normally thickened 2 nd segment of the labial palpus; in the male genitalia, the diagnostic character is a large quadrate basal plate of the gnathos as well as the rounded cucullus apically with numerous conical spines. However, the forewing venation is well-matched with other members of the genus Eridachtha Meyrick. Description. Male ( Figs 15A–C ). Wingspan 17.0 mm. Head : vertex pale orange to orange-white, with concolourous erect scales laterally. Antenna slightly longer than forewing; scape elongated, slightly dilated distally; flagellum orange-white, without annulations. Second segment of labial palpus normally thickened, devoid of rough scales dorsally; 3 rd segment slender, slightly longer than 2 nd segment. Thorax : tegula and thorax orange-white dorsally. Forewing ground colour orange-white, densely scattered with brownish scales; costa slightly arched beyond 3/4; apex more or less sharply produced; termen oblique; fringe concolourous to ground colour; venation ( Fig. 15C ) with R 1 arising from about 1/3; R 3 free from stem of R 4+5 ; R 4 and R 5 stalked for basal 3/5; R 5 to termen; M 1 remote from stem of R 4+5 ; M 2 much closer to M 3 than to M 1 ; CuA 1 and CuA 2 fairly remote at base, the former arising from near lower corner of discal cell. Hindwing ground colour paler than forewing, as broad as forewing; apex produced; fringe concolourous with ground colour; venation similar to those of its congeneric species. Abdomen : no spinous zones dorsally. Male genitalia ( Figs 15D, E ): uncus basal lobe heart-shaped, with rounded apices. Gnathos basal plate large, quadrate, slightly convex on caudal margin. Costal bar arched and slightly angulate medially. Valva extremely broad at base; ventral margin concave medially; cucullus thumb-like, rounded apically with numerous conical spines along apical margin; sacculus broadly developed. Juxta shield-shaped, gently concave on caudal margin, broadly protruded medially on anterior margin. Vinculum broad. Aedeagus stout, bifurcated apically, with small triangular dorsal spines before apex; cornuti shaped as an oval pouch with a sharply pointed plate towards base and a short, digitate plate in apical 1/4. Female unknown. Distribution. Uganda ( Kibale ). Etymology. The species name is derived from the Ancient Greek, - pholex (= thumb), referring to the thumb-like cucullus in the male genitalia.