Hydraenidae of Madagascar (Insecta: Coleoptera) Perkins, Philip D. Zootaxa 2017 2017-11-03 4342 1 1 264 6QBQB Perkins, 2017 Perkins 2017 [151,375,1806,1832] Insecta Hydraenidae Limnebius GBIF Animalia Coleoptera 160 161 Arthropoda species lobatus sp. nov.     TypeMaterial. Holotype(male):  Toliara, Manakaravavy, Manakaravavy R.dried out river with waterpools on sandy bottom with algal mats, N:-24° 28,162, E:44° 35,683, elev.  210 m,  18 v 2006, Bergsten et al.(P48) ( NHRS).   Paratypes(16): Samedata as holotype( NHRS).  Antsiranana, 13.2076S 49.0733E Diana,  5kmE of Ambilobealong RN 5A, stream under the bridge, stream with sand and algae, elev. 0 m, 13° 12' S, 49° 4' E,  31 x 2014, R. Bukontaite & J.H. Randriamihaja ( MAD14-29) (1 NHRS); Ankarana, wide sandy river, elev.  20 m, 12° 57' S, 49° 8' E,  1 xi–30 xii 2004, M. Balke(MD 022) (5 ZSMC);   Fianarantsoa, Sendrisoa Sendrisoa, Ambilavao, hygropetric, brownish muddish water seeping over rock = standing water with vegetation, S 22 0.585 E46 57.024, elev.  1165 m, 22° 1' S, 46° 57' E,  7 v 2006, Bergsten et al.(P38) (1 NHRS);   Mahajanga, Melaky: Tsingy de BemarahaNP. S 18.75595 E0 44.71245, elev.  80 m, 18° 45' S, 44° 43' E,  17 xii 2009, J. Bergsten, N. Jönsson, T. Ranarilalatiana, HJ. Randriamihaja( MAD09-67) (2 NHRS);   Toliara, Menabe: KirindyRS. S 20.07655 E0 44.67532, elev.  57 m, 20° 5' S, 44° 41' E,  12 xii 2009, J. Bergsten, N. Jönsson, T. Ranarilalatiana, HJ. Randriamihaja( MAD09-47) (3 NHRS).   Differential Diagnosis.Habitus as in Fig. 145; a moderately large brownish species with elongate oval body form; it is the least convex of the species described herein. The dorsum of the head is dark brown, except for the lateral areas of the clypeus, which are light brown; the pronotum is darker on the disc than laterally and posteriorly. The habitus is similar to that of  L. labratus, which is smaller (ca. 0.93 vs. 0.86 mm). The aedeagus is elongate and slender, with the distal ¼ slightly widened and rather blunt. Also see the differential diagnosis of  L. bergsteni.   Description. Size: holotype(length/width, mm): body (length to elytral apices) 0.93/0.45; head width 0.33; pronotum 0.24/0.45; elytra 0.54/0.45; approximate height, lateral view 0.25 Dorsum with head dark brown except lateral areas of clypeus light brown, pronotum dark brown on disc, grading to light brown laterally and posteriorly, elytra brown to light brown, scutellum darker. Body form very weakly drop-shaped. Pronotum with disc shining, non-microreticulate, very sparsely finely punctulate, each puncture with very short adpressed seta; area posterior to eye (side view) with slightly larger punctures, each puncture with adpressed seta, longer than setae on disc. Elytra very weakly effacedly microreticulate, with punctures and setae 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 lobate shape of the aedeagal apex. 1697157729 2006-05-18 NHRS Manakaravavy R. & Bergsten 210 Manakaravavy 160 161 2 Toliara holotype 1697157746 2004-11-01 2014-10-31 2004-11-01 NHRS, ZSMC M. Balke Same 20 161 162 -12.95 Ankarana 1291 49.133335 Diana 160 161 MAD14-29 2 Antsiranana paratype 1697157741 2006-05-07 NHRS Bergsten 1165 -22.016666 Ambilavao 1262 46.95 Sendrisoa Sendrisoa 161 162 1 Fianarantsoa paratype 1697157753 2009-12-17 NHRS T. Ranarilalatiana & Randriamihaja 80 -18.75 Tsingy de Bemaraha 1274 44.716667 Melaky 161 162 MAD09-67 1 Mahajanga paratype 1697157755 2009-12-12 NHRS T. Ranarilalatiana & Randriamihaja 57 -20.083334 Kirindy 1269 44.683334 Menabe 161 162 MAD09-47 1 Toliara paratype