Pseudolathra keiseri ( Scheerpeltz, 1961 )

Kocian, Matúš & Hlaváč, Peter, 2018, Review of the genus Pseudolathra Casey, 1905 (Coleoptera: Staphylinidae: Paederinae) of Réunion Island, Zootaxa 4531 (3), pp. 437-443 : 438

Pseudolathra keiseri ( Scheerpeltz, 1961)

Figs 1–4 , 20 .

Lathrobium (Madecalobrathium) keiseri Scheerpeltz, 1961: 251 (type locality: Madagascar, Soanierana-Ivongo). Pseudolathra keiseri: Janák, 2014: 475 .

Pseudolathra (Madecalobrathium) keiseri: Lecoq, 2017: 207 .

Material studied. 6 specimens (4♂♂, 2♀♀): Réunion, St. Paul – Grand Étang , 29.12.1991 – 1.1.1992, J. Janák lgt. (cJan) .

Remarks. Originally described from Madagascar, this is the only macropterous Pseudolathra known from Réunion so far. Male sternite VII ( Fig. 4 ) is normally pubescent, lacking modified setae, similar to P. hamoni but with sparser pubescence particularly in the middle of posterior margin. The excision of the posterior margin of male sternite VIII ( Fig. 20 ) is relatively deeper than in P. hamoni . The aedeagus ( Figs 1–3 ) is characterised by two long processes attached to an asymmetrical apical portion of the ventral process of the aedeagus, a unique feature among Madagascan Pseudolathra . Habitus photos of this species were published by Janák (2014).

Distribution. Madagascar, Réunion.

Figures

FIGURES 1–16. Pseudolathra keiseri (1–4), P. hamoni (5–8), P. gomyi (9–12), P. janaki sp. n. (13–16). Aedeagus from dorsal (1, 5, 9, 13), lateral (2, 6, 10, 14) and ventral (3, 7, 11, 15) view; posterior margin of male sternite VII (4, 8, 12, 16). Scale bar: 0.2 mm.

FIGURES 17–20. Male sternite VIII, schematic. Pseudolathra janaki sp. n. (17), P. gomyi (18), P. hamoni (19), P. keiseri (20). Scale bar: 0.2 mm.