Madenemura culminalis Paulian 1951
Creators: name: Zwick, Peter
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Notonemouridae
Madenemura
Madenemura culminalis

description: Madenemura culminalis Paulian, 1951
(Figs. 2, 13–17, 22, 23)
=? Madenemura sp. 3 of Paulian, 1959
Material studied. Madagascar, Ranomafana National Pk., Mariavaratra stream, 2115.629'S, 4725.149'E; emergence trap, J.Benstead: 25.11.1997, 2♂; 16.12.1997, 1♂; 16.10.1998, 1♂; 27.11.1998, 1♂; 1♂: Madagascar, Prov. Fianarantsoa, 7km W Ranomanfana 900m, 14.– 19.03.1990, W.E.Steiner \ Malaise trap across stream montane rain forest (USNM). 1♂: Preparation 0 194, 29/03/94 Piège lumineux soir Bassin: Ambre 1 Riv. Pte Cascade Local: Camp Base WWF [MZL, received on slide]. 1♀: MADAGASCAR: Antsiranana R.N.I. de Marojejy 10.5km NW Manantenina XI.6 –12.1996 1,625m Eric L. Quinter along tributary at head Andranomifototra R. 1426.4'S, 4944.5'E Malaise traps; 1 pharate ♂, 1♀. E1000-4 P1013 Madagascar Bas. Lokoho Riv. Andranomifotatra Loc. Marojejy Camp4 4944'48''E, 1426'85''S 29.11.1999 Doumenq, E.; 7♀: MADAGASCAR: Antsiranana R.N.I. de Marojejy 10.5km NW Manantenina XI.3 –XI.19.1996 1,625m Eric L. Quinter 1426.2'S, 4944.5'E Malaise traps; 1♂,1♀: MADAGASCAR: Antsiranana R.N.I. de Marojejy 10.5km NW Manantenina XI.6 –12.1996 1,625m Eric L. Quinter along tributary at head Andranomifototra R. 1426.4'S, 4944.5'E Malaise traps; 1♀: MADAGASCAR: Antsiranana R.N.I. de Marojejy 10.5km NW Manantenina XI.6 – 12.1996 1,625m Eric L. Quinter along tributary at head Andranomifototra R. 1426.4'S, 4944.5'E Malaise traps handschr.: XI.12–XI.19 (all MZL).
Madenemura sp. 3 of Paulian, 1959: 1♂: MADAGASCAR 19km NW Man. [probably Manantenina] 1996, 150m RNI Marojejy X.22 XI.19 14 °6.0'S 49°45.1'E Malaise Traps (MZL).
Habitus. As for the genus; WL of males 6.5–7.1mm, of females 6.3–7.5mm.
Male. The front of the epiproct baseplate projects deeply into T10, dividing it into hemitergites. The overall shape of the baseplate is trapezoidal, with sinuous sides and wide truncate caudal edge with distinct caudolateral angles. The epiproct is of similar width and has a wide peduncle. In dorsal view, the front of the epiproct is slightly convex, the rear face flat to shallowly concave (Fig. 13). The subterminal spinose area is transverse, in side view it appears as a hump. The epiproct is more deeply excavated than in M. descarpentriesi (Fig. 15). The paraproct body (Fig. 14) resembles M. descarpentriesi but is longer and more slender, each blade being 7.5 times as long a wide.
Female. The long and narrow ovipositor is of uniform width over most of its length. It is a firm brown structure without macroscopic pilosity, except the two setae at the shallowly bilobed tip of S8. In ventral view the ovipositor extends beyond the abdominal tip for a distance that equals the basal width of S8 (Figs. 22, 23).
Note. This species is recognized by the ovipositor. The species was first described from northern Madagascar but is actually widespread on the island although not common. Paulian's (1959) illustrations of the male, especially the long paraproct body, agree with the present specimens. In two distant regions, sexes were found in the same area and occurred in small numbers in trap catches dominated by other species.
In a single seemingly teneral male (WL 5.7mm) the divided antecosta of T10 forms a pair of slightly asymmetrical, slightly raised lobes (Figs. 16). Insofar it corresponds to Male sp. 3 of Paulian (1959) which has not been illustrated. Paulian compared it to M. bezanozano Paulian, 1959 which I have not seen, also no male with an epiproct as wide and with prominent rear corners as shown for M. bezanozano. The paraproct body of the present male agrees with M. descarpentriesi, the epiproct resembles it also but is more strongly bent forward. The crumpled cerci suggest an artifact. It is unclear if this male is malformed or if it represents a separate taxon.
description: Published as part of Zwick, Peter, 2015, Notes on Madagascan Stoneflies (Plecoptera: Notonemouridae), pp. 169-180 in Zootaxa 4059 (1) on pages 177-178, DOI: 10.11646/zootaxa.4059.1.9, http://zenodo.org/record/238194