Tafalisca ansoi, Campos & Desutter-Grandcolas, 2020

Campos, Lucas Denadai De & Desutter-Grandcolas, Laure, 2020, The Paroecanthini crickets (Orthoptera: Grylloidea: Gryllidae: Oecanthinae) from French Guiana, Zoosystema 42 (20), pp. 355-398 : 365-368

Tafalisca ansoi n. sp.

( Figs 8-10 )

urn:lsid:zoobank.org:act:2713E14F-5090-43A0-BA8C-AF8CF4F0CE84

TYPE LOCALITY. — Patawa, French Guiana.

ETYMOLOGY. — Species dedicated to Jérémy Anso, who studied Guianese crickets during his Master.

TYPE MATERIAL. — Holotype. French Guiana • ♂; Patawa , Route de Kaw, PK 32; 20.VII.2011; L. Desutter-Grandcolas & J. Anso leg.; on plant at night; Molec 2012 LDG 109; MNHN-EO-EN- SIF3276 ; MNHN.

Paratype. 1 ♂. French Guiana • 1♂; Mont[agne] de Kaw, PK 37, arbre 3; 17.VII.1994; Roubaud leg.; MNHN-EO-ENSIF10881; MNHN .

DIAGNOSIS. — This species is separated from the other species of Tafalisca by the following characters: FWs medium brown with light brown veins. TIII with three spines between each inner and outer pair of successive spurs; TIII apical and subapical spurs and spines dark brown with dark yellow apex. Male genitalia: PsP elongated, almost as long as LLophi, anterior half bilobate, apex of outer lobe rounded, apex of inner lobe straight connected to ventral projection of ectophallic invagination by membranes.

DESCRIPTION

General morphology.

Body. Medium to large size, general coloration reddish-brown, covered by small bristles.

Head. Occiput and vertex covered by small bristles, reddishbrown. Fastigium as long as wide, pubescent, reddish-brown ( Fig. 8 A-C). Three ocelli, the median very reduced, almost in the same line as lateral ones in frontal view; lateral ocelli rounded. Frons median region covered by brownish bristles, reddish-brown ( Fig. 8C ). Eyes almost as long as wide in lateral view, dorsal ommatids light brown, the others reddish-brown to medium brown ( Fig. 8B, C ). Antennal scape longer than wide, inner margin with bristles dark brown, light reddishbrown; antennomeres dark yellow. Gena reddish-brown in frontal and lateral views. Mandibles medium brown, apex darker. Epistomal suture and clypeus medium brown; labrum dark brown ( Fig. 8C ). Maxillary palpi pubescent, covered by yellowish bristles; articles light reddish-brown, darker apically; article 5 shorter than articles 3 and 4.

Pronotum. DD slightly wider than long, covered with dark brown and yellowish bristles, reddish-brown. DD cephalic margin slightly concave, with brownish bristles; caudal margin somewhat convex, with brownish bristles ( Fig. 8A ). LL reddish-brown; ventro-cephalic angle rounded; ventro-caudal angle gradually ascendant in lateral view ( Fig. 8B ).

Wings. FWs covering the entire abdomen; covered by tiny yellowish bristles; medium brown with light brown veins. Lateral field with light brown veins. ( Fig. 8A, B ). HWs longer than FWs in dorsal and lateral views.

Legs. Legs I and II with brownish bristles. FI and FII reddishbrown, apical margins darker. TI and TII with small area not covered by bristles on dorsal side of proximal region; TI and TII dark brown.TI with three apical spurs: two ventral, same-sized; one dorsal, inner, longer than ventral spurs.TII with four apical spurs: two ventral, same-sized; two dorsal, same-sized, longer than ventral spurs. FIII longer than TIII; with brownish and yellowish bristles, light reddish-brown; apical region dark brown ( Fig.8E ).TIII dark brown, with brownish bristles.TIII subapical spurs 5/4, with three spines between each inner and outer pair of successive spurs, sometimes two spines between the first two subapical spurs; seven spines above inner and outer subapical spurs; TIII apical spurs 3/3, longer on inner side; inner apical spurs: dorsal the longest (iad), median shorter than dorsal (iam), ventral the smallest (iav) (iad>iam>iav); outer apical spurs:median longest (oam), dorsal slightly shorter (oad), ventral almost same size of dorsal (oav) (oam>oad>oav). TIII apical and subapical spurs and spines dark brown with dark yellow apex ( Fig. 8A, B, E ). Basitarsus dorsal spines 3/1, apical spine the longest; inner apical spur almost as long as basitarsus, outer apical spur slightly shorter than inner apical spur. Basitarsus dark brown.

Abdomen. Tergites slightly pubescent, medium to dark brown. Cerci pubescent, dark brown. Supra anal plate dark brown, posterior margin almost straight ( Fig. 8F ).

Male

Morphology. Metanotum without projections; antero-lateral regions inflated, with bristles; medio-posterior region somewhat elevated as in Tafalisca elongata elongata n. comb. ( Fig. 8D ). FWs bearing 7-8 parallel veins, reticulated; dorsal field without stridulatory apparatus; PCu vein curved inwards on anterior region, without stridulatory teeth ventrally. Lateral field with c. 10 parallel veins, parallel to dorsal field in lateral view. Subgenital posterior margin slightly concave, pubescent; medium brown, anterior portion dark brown ( Fig. 8G ).

Male genitalia ( Figs 9 , 10 ). Pseudepiphallus: pseudepiphallic sclerite almost straight in lateral view, anterior margin concave in dorsal view. LLophi thinner than MLophi in ventral view, elongated, curved inwards, inner margin of anterior region rounded in ventral view; apex rounded. MLophi short, thin, straight, not surpassing LLophi and PsP in dorsal view. PsP elongated, almost as long as LLophi (similar to Tafalisca duckeana Campos, Souza-Dias & Nihei, 2020 ); posterior portion thinner than anterior, curved inwards, upcurved in lateral view; anterior portion bilobate, apex of external lobe rounded, apex of internal lobe straight connected with ventral projection of ectophallic invagination by membranes. R elongated, similar length of pseudepiphallic sclerite, flattened laterally, anterior region curved inwards. Ectophallic invagination: EctAp elongated, curved inwards in dorsal and ventral views; surpassing the anterior margin of pseudepiphallic sclerite. Arc not complete, flattened dorso-ventrally, slightly directed posteriorly in dorsal and ventral views; ventral projections of ectophallic invagination very short, almost no discernible.EctF weakly sclerotized, posterior margin rounded. Endophallus: EndSc well sclerotized, longer than wide, shorter than EctAp, posterior margin rounded, lateral margins folded ventrally; EndAp shorter than EndSc.

Female

Unknown.

Measurements

Males (n = 2, holotype and paratype): HW, 4.1; IOD, 2; PL, 4.2; PW, 5; FWL, 20.05 ± 0.07 (20-20.1); FWW, 5.05 ± 0.07 (5-5.1); HWL, 21.8 ± 0.2 (21.6-22); LFIII, 13.5 ± 0.3 (13.5-14); WFIII, 4.3; LTIII, 12.15 ± 0.21 (12- 12.3); LBtarsIII, 2.

Figures

FIG. 8. — Tafalisca ansoi n. sp.: A, male habitus, dorsal; B, male habitus, lateral; C, male head, frontal; D, male metanotum, dorsal; E, male hindleg, lateral; F, male supra anal plate; G, male subgenital plate. Scale bars: A, B, 5 mm; E, 2 mm; C, D, F, G, 1 mm.

FIG. 9. — Tafalisca ansoi n. sp., male phallic complex: A, dorsal; B, ventral; C, lateral. Scale bar: 1 mm.

FIG. 10. — Tafalisca ansoi n. sp., male phallic complex: A, dorsal; B, ventral; C, lateral. Abbreviations: See Material and methods. Scale bar: 1 mm.