Pteranabropsis copia, Ingrisch, 2019

Ingrisch, Sigfrid, 2019, Review of the genus Pteranabropsis (Anostostomatidae: Anabropsinae) with description of six new species, Journal of Orthoptera Research 28 (2), pp. 107-124 : 111-113

Pteranabropsis copia sp. nov. Figs 1C-E , 2C , 2I , 2M , 4A-D , 4L-M , 5D-F , 6S-V , 7G-H

Holotype (male). -

Vietnam: Son La prov., Copia Nat. Res., 21°22'12"N, 103°30'42"E, 20-23.vii.2016, leg. J. Constant & J. Bresseel (GTI project, I.G.: 33.282) - (Brussels, ISNB).

Other specimens examined. -

Vietnam: same data as holotype - 4 females, 2 males (paratypes) (Brussels, ISNB); Hoang Lien NP, 22°21'N, 103°46'20"E, 1-5.vii.2013, leg. J. Constant & J. Bresseel (I.G. 32.454) - 8 females (Brussels, ISNB) .

Diagnosis. -

A brachypterous species with wings that only slightly surpass the hind knees. In contrast to other brachypterous species of the genus, the fore wings of P. copia sp. nov. are rather wide (2.2-2.4 × longer than wide) and the spread hind wings are longer such that they look more like elongated semi-circles, while in most of the other species mentioned they are more ovoid. Moreover, P. copia sp. nov. differs from other similar species of the genus by the very narrow conical apical area of the metasternal lobes that arises in an almost step-like constriction from the wide basal area. The male paraproctal outgrowths of the new species resemble those of P. cuspis sp. nov., but the long dorsal process ends in a rather wide obtuse tip that carries a narrow stiffened rim, while in P. cuspis it ends in a subacute tip with minute stiffened pad. The female subgenital plate of P. copia is similar to that of P. carli but provided in the transient zone between the wide basal and the narrow apical area with small elongate lateral grooves such that the ventral surface of the plate in that area is narrower than the distance between the dorsal lateral margins.

Description. -

Medium sized to moderately large species; general habitus as genus. Prosternal lobes near base compressed, afterwards long spiniform, thin; mesosternal lobes in basal area moderately wide, afterwards elongate conical to nearly cylindrical with obtuse tip; metasternal lobes compressed, with concave internal and strongly convex external margins; rather suddenly narrowed into nearly sub-cylindrical apical area with obtuse tip (Fig. 2I, M ).

Wings slightly surpassing hind knees (Fig. 1C-E ). Fore wings 2.2-2.4 × longer than wide. Venation: radius with radius sector arising between middle and apical third of tegmen; media two-branched, branching before mid-length; cubitus anterior either three-branched, branching in basal third and behind mid-length, or two-branched, branching only in basal third; cubitus posterior free and undivided; with 5 anal veins, the last one incomplete. Hind wings nearly semicircular, about 1.4-1.55 × wider than long.

Legs. Fore coxa with a strong spine at swollen anterior surface; mid coxa with a smaller spine at anterior margin. Fore femur with 1-4 small spines and mid femur with 0-3 spines at anterior-ventral margins; in one male, also with one spine at posterior margin of one mid femur only. Hind femur with 1-6 external and 1-6 small internal spines on ventral margins; hind tibia with dorsal spines on inner margin slightly larger than on outer margin, ventral margins with few minute spinules; on both sides with 4 apical spurs, the dorsal two pairs very large, the following pair medium, the ventral-most pair small; internal spurs larger than external counterparts; ventral margin with 2-3 external and 1 internal spinules.

Male. Paraproctal outgrowths elongate, narrowest in middle, at end with rounded ventral angle, substraight but slightly oblique apical margin and elongate-triangular dorsal process, slightly tilting posteriorly and with truncate tip that carries on top a narrow stiffened lamella (Fig. 4A-D ). Subgenital plate in widened basal area only slightly swollen; apical area with subparallel lateral margins that very faintly diverge posteriorly; apical margin substraight but concave in middle; elongate styli inserted at apico-lateral angles (Fig. 2C ). Phallus membranous (Fig. 7G-H ).

Female. Subgenital plate acute-angled triangular in more than basal half, terminating into a long apical spine with regularly con verging margins to acute tip; at transition between basal and apical areas with a small elongate groove on both sides (Fig. 5D-F ).

Coloration. -

Different shades of brown with light and dark brown mottling; head dark brown with light spots; pronotum and hind femora of similar color; hind femora towards apical area indistinctly lighter. Head: face blackish-brown with numerous small and few larger whitish-brown dots, also on scapus; clypeus, labrum and inner area of mandibles more uniformly medium or dark brown. Tegmen semi-transparent brown with indistinct dark spots, along anterior margin lighter; hind wings semi-transparent grey-brown, in anterior area clear, subtransparent.

Measurements. -

(3 males, 4 females from Copia). In mm. Body w/wings: male 48-50, female 46-50; body w/o wings: male 27-31, female 28-35; pronotum: male 6.8-8.0, female 7.5-8.5; tegmen: male 36-38, female 32-37; tegmen width: male 15.5-16.5, female 14.0-15.5; hind femur: male 28.5-29.0, female 27-30; ovipositor: female 19.5-23.0. Index tegmen length : width male 2.24-2.45, female 2.21-2.40.

Measurements. -

(8 females from Hoang Lien). In mm. Body w/wings: female 39-45; body w/o wings: female 28-32; pronotum: female 7.8-8.2; tegmen: female 30-33; tegmen width: female 14; hind femur: female 26-28; ovipositor: female 18-20.

Etymology. -

The name of the new species refers to the type locality; noun in apposition.

Figures

Fig. 1. Habitus dorsal view of Pteranabropsis species. A. P. carli (Griffini, 1911) female; B. P. cuspis sp. nov. male; C-E. P. copia sp. nov. male (C), female from Copia (D), and female from Hoang Lien (E); F. P. angusta sp. nov. male; G. P. bavi sp. nov. female; H. P. guadun sp. nov. female; I. P. pusilla sp. nov. male; J. P. carnarius Gorochov, 1998 male. Scales 10 mm.

Fig. 2. A-G. Male subgenital plate; H. Thoracic sternites; I-P. Metasternum of Pteranabropsis species: P. carli (Griffini, 1911) (A, J); P. cuspis sp. nov. (B, H); P. copia from type locality (C, M); P. angusta sp. nov. (D, L); P. carnarius Gorochov, 1998 (E, N); P. pusilla sp. nov. (F, O); P. guadun sp. nov. (G, P); P. copia from Hoang Lien (I); P. bavi sp. nov. (K). Abbreviations: c 1 - fore coxa, c 2 - mid coxa, c 3 - hind coxa, s 1 - prosternum, s 2 - mesosternum, s 3 - metasternum, th - throat with lateral hemispherical sclerites and pair of papillae, pr - underside of pronotum. Scales 1 mm.

Fig. 4. A-K. Male paraproctal outgrowths in full or only apical area in lateral (A-B, E-F, H, J), apical (C-D, G), ventro-apical (I), and oblique apical view (K); L-O. Female abdominal apex with ovipositor in lateral view. A-D. P. copia (2 males); E-G. P. carnarius Gorochov, 1998 (two males from Tam Dao, in F the hindmost outgrowth is twisted upside down); H-I. P. pusilla sp. nov.; J-K. P. guadun sp. nov.; L-M. P. copia sp. nov. from Copia (L) and Hoang Lien (M); N. P. bavi sp. nov.; O. P. guadun sp. nov. Scales 1 mm, scale for ovipositor 10 mm.

Fig. 5. Female subgenital plate of A-C. P. carli (Griffini, 1911) from Hoang Lien (A-B) and Tam Dao (C, in oblique view); D-F. P. copia sp. nov. from Hoang Lien (D-E) and Copia (F); G. P. bavi sp. nov.; H. P. pusilla sp. nov.; I. P. guadun sp. nov.; J-K. P. carnarius Gorochov, 1998 from Tam Dao (J) and from BaVi (K, abdomen laterally compressed). The white arrows point at the small lateral grooves, constrictions or faint steps of the subgenital plates. Scales 1 mm.

Fig. 6. A-E. P. carli (Griffini, 1911) male from Ngo Luong (A-D) and Tam Dao (E); F-G. P. cuspis sp. nov. male; H-I. P. angusta sp. nov. male; J-M. P. carnarius Gorochov, 1998 male (J) and female from Tam Tao (K-L) and from BaVi (M); N-O. P. pusilla sp. nov. female; P-R. P. guadun sp. nov. female; S-V. P. copia sp. nov. female (S-T) and male (U-V) from Copia. - Fore tibia external side (A, F, H, K, N, P, S) and internal side (B, E, G, I-J, L, O, Q, T); thorax in lateral view (C), prothoracic spiracle (D, M, R, V). Abbreviations: c 1 - anterior coxa, ms - mesothoracic pleurites, mt - metathoracic pleurites, s 1 - s 3 - first, second and third thoracic spiracles. Scales for legs and body, 5 mm; for tympana and spiracles, 1 mm.

Fig. 7. Male phallic complex of A-F. P. carli (Griffini, 1911) from Tam Dao (A-B), Cuc Phuong (C-D) and Ngo Luong (E-F); G-H. P. copia sp. nov.; I-J. P. cuspis sp. nov.; K-N. P. angusta sp. nov.; O-P. P. carnarius from Tam Tao; Q-R. P. pusilla sp. nov.; S-T. P. guadun sp. nov. in dorsal (A, C, F, G, I, L, M, O, Q, S) and in ventral (D, E, H, J, K, N, O, R, T) view, or in dorsal view with only dorsal lobes flipped proximad, ventral lobe distad (B). Scales 1 mm (all images).