Eumetopus tibialis Ji & Jäch, 1998

Fikáček, Martin, Matsumoto, Keita, Perkins, Philip, Prokin, Alexander, Sazhnev, Alexey, Litovkin, Stanislav & Jäch, Manfred A., 2021, The family Epimetopidae (Coleoptera: Hydrophiloidea): review of current knowledge, genus-level phylogeny, and taxonomic revision of Eupotemus, Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 61 (1), pp. 1-34 : 26

Eumetopus tibialis Ji & Jäch, 1998

( Figs 14G , 15G, K )

Material examined. THAILAND: RൺඇඈඇǤ: 1 ♀ ( NMPC): Ban Na env., 9°34′N 98°42′E, K. Majer lgt.

Comments. The species was so far only known from

northern Thailand. The above specimen from southern Thailand is a female, but corresponds to the paratypes of E. tibialis in all aspects, including the body size and the dorsal sculpture of the elytron.

Figures

Fig. 14. Habitus photographs of the known species of Eumetopus Balfour-Browne, 1949. A – E. acutimontis Ji & Jäch, 1998, paratype from China: Hainan (NHMW); B – E. asperatus (Champion, 1919), specimen from Nepal: Koshi Valley (NMPC); C – E. bullatus (Sharp, 1875), specimen from India: Maharashtra, Sawantwadi (NMPC); D – E. flavidulus (Sharp, 1890), specimen from India: Meghalaya, Bagmara (NHMW); E – E. maindroni (Régimbart, 1903), specimen from India: Maharashtra, Sawantwadi (NHMW); F – E. schuelkei Jäch, 2002, paratype from central Laos; G – E. tibialis Ji & Jäch, 1998 from Thailand, Ban Na env. (NMPC); H – E. weigeli Skale & Jäch, 2003, holotype from Nepal (NHMW). Scale bars: 1 mm.

Fig. 15. Elytral sculpture and male genitalia of Eumetopus Balfour-Browne, 1949. A–H – elytral sculpture, same specimens as in Fig. 14: A – E. acutimontis Ji & Jäch, 1998; B – E. asperatus (Champion, 1919); C – E. bullatus (Sharp, 1875); D – E. flavidulus (Sharp, 1890); E – E. maindroni (Régimbart, 1903); F – E. schuelkei Jäch, 2002; G – E. tibialis Ji & Jäch, 1998; H – E. weigeli Skale & Jäch, 2003. I–L – male genitalia of examined specimens, large basal portion of the phallobase omitted (dorsal and lateral view): I – E. acutimontis from Vietnam; J – E. flavidulus from India: Andhra Pradesh; K – E. maindroni from India: Gujarat; L – E. weigeli from India: Uttarakhand.