Limnebius clandestinus, Perkins, 2017

Perkins, Philip D., 2017, Hydraenidae of Madagascar (Insecta: Coleoptera), Zootaxa 4342 (1), pp. 1-264 : 169-170

publication ID	https://doi.org/ 10.11646/zootaxa.4342.1.1
publication LSID	lsid:zoobank.org:pub:2ACD54D2-3487-432D-9323-EEC131FE2E64
DOI	https://doi.org/10.5281/zenodo.5323710
persistent identifier	https://treatment.plazi.org/id/038587BB-E3AF-FF38-FF75-F9A1BAB6FE59
treatment provided by	Plazi
scientific name	Limnebius clandestinus
status	sp. nov.

Treatment

Limnebius clandestinus View in CoL , new species

Figs. 153 (habitus), 21 (aedeagus), 296 (map)

Type Material. Holotype (male): Mahajanga, Boeny: Mahavavy Kinkony RS. S 16.13337 E 0 45.95778, elev GoogleMaps . 19 m, 4 xii 2009, J. Bergsten, N. Jönsson, T. Ranarilalatiana, HJ. Randriamihaja ( MAD09-25 View Materials ) ( NHRS). Paratypes (6): Same data as holotype (1 NHRS); Mahajanga, Melaky : btw Bekopaka—Antsalova. S 18.91556 E 0 44.55546, elev GoogleMaps . 47 m, 18° 55' S, 44° 33' E, 16 xii 2009, J. Bergsten, N. Jönsson, T.Ranarilalatiana, HJ. Randriamihaja ( MAD09-61 View Materials ) (1 NHRS); Toliara, Andranomena, at black light, dry forest near open marsh, 19° 53' S, 45° 4' E, 30 iii 1990, W. E. Steiner, C. Kremen, V. Razafimahatratra (3 USNM); Menabe: Kirindy RS. S 20.07641 E 0 44.67478, elev GoogleMaps . 65 m, 20° 5' S, 44° 40' E, 11 xii 2009, J. Bergsten, N. Jönsson, T. Ranarilalatiana, HJ. Randriamihaja (MAD09-42) (1 NHRS).

Differential Diagnosis. Habitus as in Fig. 153; a moderately sized (ca. 0.92 mm), strongly shining, teardropshaped species. Very similar in habitus to L. steineri , though having the dorsal punctation slightly less apparent, and without apparent setae. The aedeagi of the two species are similar in shape ( Figs. 20, 21), but in L. clandestinus the aedeagus is shorter, less sharply pointed apically, and in lateral view distinctly more arcuate and having the pair of long setae located more basally.

Description. Size: holotype (length/width, mm): body (length to elytral apices) 0.92/0.51; head width 0.36; pronotum 0.23/0.51; elytra 0.55/0.51; approximate height, lateral view 0.29. Dorsum brown to piceous, head and pronotum sometimes slightly darker than elytra. Body form distinctively drop-shaped. Pronotum with disc strongly shining, non-microreticulate, very sparsely finely punctulate, punctures without apparent setae; area posterior to eye (side view) with slightly larger punctures. Elytra non-microreticulate or very weakly effacedly so, with minute punctures similar to those on pronotum.

Males with first three pro- and mesotarsal segments slightly enlarged, with adhesive setae. Labroclypeal suture arcuate in frontal view in both sexes. Labrum simple, similar in sexes. Lateral angle of elytral apices more widely rounded and apices more truncate in males than in females, sutural angle more acute in females.

Etymology. Named in reference to the similarity to H. steineri .