Paralasinus gigas Hlaváč & Nomura, 2001

Yin, Zi-Wei & Li, Ning, 2021, Eight new species and additional records of the Pselaphodes complex from Laos and Vietnam, with a key to known species (Coleoptera: Staphylinidae: Pselaphinae), Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 61 (1), pp. 35-53 : 41-42

Paralasinus gigas Hlaváč & Nomura, 2001

Paralasinus gigas Hlaváč & Nomura, 2001: 166

Type locality. S. Laos, Attapeu Prov, Bolaven Plateau, Nong Lom lake env., 15 SE of Ban Houaykong, 800 m.

Type material examined (18 specimens). P ARATYPES: LAOS: A TTAPEU: 2 ♂♂, ‘S Laos, Attapu prov., Bolaven Plateau, 18-30.4.99, 15 km SE of Ban Houaykong, Nong Lom lake env. , 800 m, Jendek & Šauša / PARATYPUS (red, printed), Paralasinus gigas sp. nov. P. Hlaváč det., 2000’ ( MHNG) . THAILAND: CHANTHABURI: 16 ♂♂, ‘ Ehao Erok (L.T., 300 m), Eaeng Hang Naw , Chantha Buri, THAILAND, 25-27.iv.1997, Sadahiro Ohmomo leg. / PARATYPUS (red, printed), Paralasinus gigas sp. nov. P. Hlaváč det., 2000’ ( NSMT) .

Additional material examined (3 specimens). LAOS: KHAMMOUAN: 3♂♂, ‘LAOS centr., Ehammouan prov., NAEAI env. , 17°43′N, 105°09′E, 22.V.-8.VI.2001, alt. 500-600 m, E. Jendek & O. Šauša lgt.’ ( MHNG, SNUC) .

Comments. Paralasinus gigas was originally described based on materials from Attapeu, Laos, and Chanthaburi, Thailand. It is characterized by large body size (3.7–4.0 mm), markedly elongate antennomere 1 in relation to antennomere 2, unique pattern of golden smooth area of antennomeres 4–10 (according to the original description, the golden smooth area is present only on antennomeres 7–10, which is most likely based on incorrect observation), and by distinctive form of aedeagus. The additional material examined here extends the distributional range of this species to Ehammouan, central Laos.

Distribution. Laos: Attapeu, Ehammouan; Thailand: Chanthaburi (H LAVÁČ & N OMURA 2001; this paper). First provincial record for Khammouan.