Eremus oberthuri Griffini, 1913a, 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 : 180

Eremus oberthuri Griffini, 1913a stat. nov.

Figs. 62 H–L

Eremus rugosifrons oberthuri Griffini, 1913a

Material examined. Bhutan: Pedong , 1.i.–31.xii.1900, coll. R. Oberthür— 1 female, 1 male (syntypes) (Paris MNHN) .

Discussion. The male syntype is obviously missing the pair of short acute spines in middle of apical margin of ninth tergite male that are typical for E. r. rugosifrons as already noted by Griffini (1913a) in the original diagnosis. But a more severe re-examination including relaxing and manipulation of the specimen would be necessary to confirm this. The female differs from E. rugosifrons by the apical groove at the end of the seventh abdominal sternite that is narrower and at the end of the sternite ( Fig. 62K ) while in E. rugosifrons it is more distinct and at the end of an apical prolongation of the sternite ( Fig. 61N ). Moreover, it differs from E. rugosifrons by the possession of distinct relicts of wings Griffini (1913a); squamipterous instead of apterous wing condition. It is thus better regarded as full species instead as subspecies of the latter.

Male ninth abdominal tergite in dorsal view triangularly rounded ( Fig. 62H ); apical margin incurved without spines or teeth but may be hidden due to rolled-up margin ( Fig. 62J ). Subgenital plate wider than long with little diverging lateral margins; apical margin concave, with small styli sitting on rounded apical lateral angles ( Fig. 62I ).

Female seventh abdominal sternite with a small transverse groove before apical margin. Subgenital plate elongate semi-ovoid ( Fig. 62K ). Ovipositor long, slightly upcurved, with simple, subacute tip ( Fig. 62L ).

Measurements after Griffini (1913a) (1 male, 1 female).—body w/o wings: male 27.5, female 32.5; pronotum: male 5.7, female 6.8; tegmen: male 1.5, female 1.7; hind femur: male 15.3, female 17.2; ovipositor: female 19 mm.

Figures

FIGURE 61. Genus Eremus: A–B, E. tigris sp. nov. male paratype (A) and holotype (B); C–D, E. nigrifrons Brunner, 1888 female type; E, E. sp. male ("Eremus nigrifrons Br. =? basalis Walker" det. Karny); F, E. b. basalis (Walker, 1869) female holotype; G–K, E. geniculatus Brunner, 1888 female paratype (G–H), female holotype (I) and male paratype (J–K); L–N, E. r. rugosifrons Brunner, 1888 male type BrW9787 (L–M) and female (N).—Face (A, C, G, L), male abdominal apex in ventroapical view (B, E, K, M), end of female abdomen with seventh sternite, subgenital plate and base of ovipositor (D, F, H–I, N), habitus lateral view (J).

FIGURE 62. Genus Eremus: A–D, E. (?) decolyi Bolivar, 1900 male type (A–B) and female (C–D); E–G, E. elegantulus Bolivar, 1900 male type; H–L, E. oberthuri Griffini, 1913 male (H–J) and female (K–L).—Male abdominal apex in apical (A, J), ventral (E, I), lateral (F) and dorsal view (H), pro- and mesonotum with reduced tegmen in dorsal view (B), pro-, meso- and metanotum in lateral view (G), ventral base of female ovipositor and recurved subgenital plate (C), subgenital plate in anterior view (D), female subgenital plate and tip of seventh abdominal sternite (K), ovipositor with tip of abdomen in lateral view (L). Long scales 5 mm, short scales 1 mm.