Monseremus appendiculatus, 2018

Ingrisch, Sigfrid, 2018, New taxa and records of Gryllacrididae (Orthoptera, Stenopelmatoidea) from South East Asia and New Guinea with a key to the genera, Zootaxa 4510 (1), pp. 1-278 : 222-225

publication ID 10.11646/zootaxa.4510.1.1

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scientific name

Monseremus appendiculatus

sp. nov.

Monseremus appendiculatus View in CoL sp. nov.

Figs. 78 View FIGURE 78 E–G, 79H–L

Material examined. Holotype (female): East Malaysia: Sabah, Mt. Kinabalu, Poring , elev. 500–700 m (6°5'N, 116°33'E), 24.x.1996, leg. A. Floren (tree nr. 72)— 1 female (holotype) (Bonn ZFMK). GoogleMaps

Other specimens studied: Mt. Kinabalu, Sayap, Sungai Wariu, elev. 900 m, 23.iii.1994, leg. Hoffmann— 1 female (paratype) (Bonn ZFMK).

Diagnosis. The new species resembles in general habitus species of the genus Neanias . It is unique for the modifications of the females seventh abdominal sternite that is provided with a pair of pits in subbasal area and terminates in a T-shaped prolongation, combined with a strong modification of the female subgenital plate that is provided with a pair of curved, horn-shaped appendages from anterior margin ( Figs. 79 View FIGURE 79 I–K).

Description. Head: Face not particularly large; in frontal view roughly oval; forehead nearly smooth; fastigium verticis distinctly wider than scapus; medium and lateral ocelli small, little distinct ( Fig. 79H View FIGURE 79 ). Abdominal tergites two and three each with two little distinct rows of minute stridulatory pegs (4, 11; 15, 6; n=1; Fig. 79L View FIGURE 79 ).

Wings absent ( Figs. 78 View FIGURE 78 E–G).

Legs: Fore coxa with a rather long spine at fore margin; fore and mid femora unarmed; fore and mid tibiae with four pairs of large ventral spines and one pair of smaller ventral spurs; hind femur with 5–6 external and 8–10 internal spines on ventral margins, little increasing in size towards posterior end; hind tibia with spaced spines on both dorsal margins increasing in size from base to end; ventral margins with one pre-apical spine each; with 3 apical spurs on both sides.

Coloration. General color medium to dark brown, dorsal side darker than ventral side; with little distinct darker ornaments on hind femur. Face yellowish brown.

Male unknown.

Female. Seventh abdominal sternite with a strong convex apical extension having a fallen-T shaped elevation in middle and is grooved on both sides; main part with two pits in about half length of sternite, one at each side. Subgenital plate basic shape roughly semi-circular with rim strongly swollen, basal margin straight in middle but on both sides with a large swollen extension bent ventrad and later craniad, tip broadly rounded ( Figs. 79 View FIGURE 79 I–K). Base of ovipositor laterally at very base with a conical protuberance. Ovipositor straight, longer than hind femur; tip narrowly obtuse ( Fig. 78 View FIGURE 78 F–G).

Measurements (2 females).—body w/o wings: 23–24; pronotum: 5; tegmen: 0; hind femur: 14; antenna: 150; ovipositor: 17.0– 17.5 mm.

Etymology. Named for the appendage of the female subgenital plate; from Latin appendicula.


Zoologisches Forschungsmuseum Alexander Koenig

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