Hydraenidae of Madagascar (Insecta: Coleoptera)
Perkins, Philip D.
Zootaxa
2017
2017-11-03
4342
1
1
264
6QBPZ
Perkins, 2017
Perkins
2017
[151,376,546,572]
Insecta
Hydraenidae
Limnebius
GBIF
Animalia
Coleoptera
168
169
Arthropoda
species
steineri
sp. nov.
TypeMaterial. Holotype(male): Fianarantsoa, 7 kmW Ranomafana, from seepage over sunlit rock at river, montane rainforest, elev. 900 m, 21° 16' S, 47° 25' E, 6 ix 1993, W. E. Steiner& M. Stebbins( USNM). Paratypes(77): Samedata as holotype(46). Antsiranana, Antsaba, waterhole in streambed, elev. 50 m, 14° 0' S, 48° 50' E, 1 xi–30 xii 2004, M. Balke& M. Monaghan(MD 011) (27 ZSMC); Mahajanga, Boeny: Mahavavy KinkonyRS. S 16.14147 E0 45.93661, water collecting hole, Field# MAD09-20.5(next to Field# MAD09-20), elev. 12 m, 16° 8' S, 45° 56' E, 3 xii 2009, J. Bergsten, N. Jönsson, T. Ranarilalatiana, HJ. Randriamihaja( MAD09-20.5) (1 NHRS); Toliara, Menabe: Kirindy forest: Sentier de Pandanus, crocodile pool: S 20.072483 E44.67155, dried up river with big pool, elev. 50 m, 20° 4' S, 44° 40' E, 17–18 xi 2013, J.H. Randriamihaja& T.Ranarilalatiana( MAD13-01) (2 NHRS); Menabe: Kirindy RS. 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) (1 NHRS).
Differential Diagnosis.Habitus as in Fig. 152; a moderately sized (ca. 0.88 mm) teardrop-shaped species. Very similar in habitus to L. clandestinus, although having the dorsal punctation slightly more apparent. The aedeagi of the two species are similar in shape ( Figs. 20, 21), but in L. steinerithe aedeagus is longer, more sharply pointed apically, and in lateral view much less arcuate (almost straight for most of its length), and has the pair of long setae located more distally.
Description. Size: holotype(length/width, mm): body (length to elytral apices) 0.88/0.50; head width 0.35; pronotum 0.23/0.50; elytra 0.55/0.50; approximate height, lateral view 0.28. Dorsum brown to piceous, head and pronotum sometimes darker than elytra. Body form distinctively drop-shaped. Pronotum with disc shining, nonmicroreticulate, 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 nonmicroreticulate or very weakly effacedly so, 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 honor of the collector, friend and colleague, Warren Steiner.
1697157768
1993-09-06
USNM
W. E. Steiner & M. Stebbins
900
-21.266666
Ranomafana
1264
47.416668
168
169
2
Fianarantsoa
holotype
1697157754
2004-11-01
2004-12-30
2004-11-01
ZSMC
M. Balke & M. Monaghan
50
-14.0
Antsaba
1289
48.833332
Same
168
169
2
Antsiranana
paratype
1697157770
2009-12-03
NHRS
Randriamihaja
Mahavavy Kinkony
12
-16.133333
Field
1283
45.933334
Field
168
169
MAD09-20.5, MAD09-20
1
Mahajanga
paratype
1697157798
2009-12-12
2013-11-18
2009-12-12
NHRS
de Pandanus & J. H. Randriamihaja & T. Ranarilalatiana & Kirindy RS & J. Bergsten & N. Jonsson & Randriamihaja
Menabe
50
-20.083334
Sentier de Pandanus
1269
44.683334
Kirindy forest
168
169
MAD13-01, MAD09-47
1
Toliara
paratype