Cylindrogryllus (Apterotrypa) guyanensis, 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 : 383-386

Cylindrogryllus (Apterotrypa) guyanensis n. sp.

( Fig. 1D , 24-26 )

urn:lsid:zoobank.org:act:DA155DCC-2DAC-4F51-B033-8F984C00CDE2

TYPE LOCALITY. — Tumuc-Humac, Massif du Mitaraka, French Guiana.

ETYMOLOGY. — Species named after its large distribution in French Guiana.

TYPE MATERIAL. — Holotype. French Guiana • ♂; 2015 GUY SH 208; Planète revisitée Guyane 2015, Monts Tumuc-Humac, Massif du Mitaraka; 54°45.112”O, 2°23.478”N (D2); 300 m; 23.II.2015 - 10. III.2015; F. Legendre & S. Hugel leg.; night; Molec 2019 lbr_131; MNHN-EO-ENSIF10907; MNHN.

Allotype. French Guiana • ♀; Sinnamary , Piste de St Elie, PK 15; 4.VIII.1988; L. Desutter & P. Grandcolas leg.; night; MNHN-EO- ENSIF10908 ; MNHN.

Paratypes. 3♀. French Guiana • 1♀; Arataye Affl. Approuague , 8 km NE pied Saut Parare; 5. VI.1988; L. Desutter & P. Grandcolas leg.; night; MNHN-EO-ENSIF10909; MNHN . • 1♀; Station des Nouragues , camp Inselberg; 4°05’N, 52°41’W; 11.VII. 2011; L. Desutter-Grandcolas & J. Anso leg.; on shrub; P1_14; MNHN- EO-ENSIF10910; MNHN . • 1♀; Station des Nouragues , camp Inselberg; 4°05’N, 52°41’W; 18.VII. 2011; L. Desutter-Grandcolas & J. Anso leg.; on shrub; P1_67; MNHN-EO-ENSIF10911; MNHN .

DIAGNOSIS. — This species is separated from the other species of Cylindrogryllus (Apterotrypa) by the following characters: ocelli absent; TIII medium brown with dark brown bands on the base of spurs, another band dark brown on proximal region. Male genitalia: LLophi inner margin bearing a membrane; EndSc sclerotized, as long as wide, anterior margin rounded; lateral margins folded ventrally; EndAp short. Female genitalia: copulatory papilla dorsal side three times longer than ventral side; posterior margin with a ventral aperture, whitish in dorsal view.

DESCRIPTION

General morphology

Body. Small size, general coloration medium to dark brown, body covered by bristles.

Head. Occiput and vertex with dark brown bristles, medium brown. Fastigium wider than long, pubescent, medium brown ( Fig. 24A, C, E ). Ocelli absent. Frons smooth, light brown ( Fig. 24E ). Eyes longer than wide in lateral view, ommatids black. Antennal scape longer than wide, inner margin with bristles brown, medium brown; antennomeres light brown with dark brown bands of three articles. Gena medium brown in frontal and lateral views. Mandibles medium brown. Epistomal suture dark yellow; clypeus medium brown; labrum light brown, ventral margin dark brown ( Fig. 24E ). Maxillary palpi slightly pubescent, article 3 longer than articles 4 and 5, article 5 clavate; articles medium brown, article 5 apex darker.

Pronotum. DD longer than wide, pubescent, reddishbrown. DD cephalic margin sub-straight with brownish bristles; caudal margin almost straight, with brownish bristles ( Fig. 24A, C ). LL reddish-brown; ventro-cephalic angle rounded; ventro-caudal angle gradually ascendant in lateral view ( Fig. 24B, D ).

Legs. Legs I and II with yellow and brown bristles. FI and FII light brown, punctuated dark brown. TI and TII light brown, punctuated dark brown. TI with three apical spurs: two ventral same-sized; one dorsal, inner, longer than ventral ones.TII with two ventral spurs same-sized, two dorsal spurs smaller than ventral ones. FIII longer than TIII; with short bristles, medium brown, dorsal and apical margins darker ( Fig. 24B, D ). TIII medium brown with dark brown bands on base of spurs, another band dark brown on proximal region.TIII subapical spurs 5/4, with two spines between them, uppermost spurs with one spine between them, eight or nine spines above the subapical spurs.TIII apical spurs 3/3, longer on inner side; inner apical spurs: dorsal longest (iad), median shorter than dorsal (iam), ventral 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 subapical spurs and spines and apical spurs apex curved, light brown, base dark brown ( Fig. 24 A-D). Basitarsus dorsal spines 3/1, apical spine the longest; inner apical spur shorter than basitarsus, outer and inner apical spurs same-sized. Basitarsus medium brown.

Abdomen. Tergites slightly pubescent, medium brown to reddish-brown. Cerci pubescent, medium brown. Supra anal plate with yellowish bristles, posterior margin almost straight; dark brown ( Fig. 24F ).

Male

Morphology. Last abdominal tergite not modified. Subgenital plate longer than wide, posterior margin rounded, pubescent; medium brown, posterior margin darker ( Fig. 24G ).

Male genitalia ( Figs 25 A-C, 26). Pseudepiphallus: pseudepiphallic sclerite apex straight in lateral view, anterior margin concave in dorsal view. LLophi apex pointed, shorter than PsP, inner margin bearing a membrane. PsP almost not reaching posterior margin of pseudepiphallic sclerite, with two posterior lobes; one dorsal longer, one ventral shorter. R elongated, almost same size of pseudepiphallic sclerite, flattened laterally, anterior region not curved. Ectophallic invagination: EctAp longer than LLophi, straight and inclined outwards in dorsal and ventral views; surpassing the anterior margin of pseudepiphallic sclerite. Arc not complete, inclined posteriorly in dorsal and ventral views; ventral projections of ectophallic invagination very short, shorter than EctAp. EctF membranous almost no discernible. Endophallus: EndSc strongly sclerotized, as long as wide, anterior margin rounded; lateral margins folded ventrally. EndAp short.

Female

Morphology. Body larger than male, general coloration similar to male ( Fig. 24C, D ). Subgenital plate wider than long, posterior margin slightly concave medially; medium to dark brown, covered by yellowish bristles ( Fig. 24I ). Ovipositor upcurved, medium to dark brown ( Fig. 24D ); apex lateral margins slightly serrulated, posterior tip pointed ( Fig. 24H, I ).

Female genitalia ( Fig. 25 D-F). Copulatory papilla straight in lateral view; dorsal side three times as long as ventral side; posterior margin with a ventral aperture, whitish in dorsal view. Anterior margin convex in dorsal view.

Measurements

Male (n = 1, holotype): HW, 2; IOD, 1; PL, 2.4; PW, 2.3; LFIII, 7.1; WFIII; 2.4; LTIII, 6.5; LBtarsIII, 1.3.

Females (n = 2, allotype and paratype). HW, 2.25 ± 0.21 (2.1-2.4); IOD, 1.2; PL, 2.3 ± 0.14 (2.2-2.4); PW, 2.65 ± 0.07 (2.6-2.7); LFIII, 8.3 ± 0.28 (8.1-8.5); WFIII, 2.65 ± 0.21 (2.5-2.8); LTIII, 7.6 ± 0.28 (7.4-7.8); LBtars, 1.25 ± 0.21 (1.1-1.4); OL, 6.85 ± 1.76 (5.6-8.1).

REMARKS

The DD caudal margin covering the metanotum does not allow the observation of structures on the metanotum of the male.

Figures

FIG. 1. — Living habitus: A, Tafalisca hugeli n. sp., adult male; B, Tafalisca hugeli n. sp., nymph; C, Cylindrogryllus (Apterotrypa) mitarakensis n. sp., adult male; D, Cylindrogryllus (Apterotrypa) guyanensis n. sp., adult male; E, Stenoecanthus planixiphus n. sp., adult female; F, Stenoecanthus planixiphus n. sp., adult male and female, mating. Photos: © Sylvain Hugel.

FIG. 24. — Cylindrogryllus (Apterotrypa) guyanensis n. sp., male and female: A, male habitus, dorsal; B, male habitus, lateral; C, female habitus, dorsal; D, female habitus, lateral; E, male head, frontal; F, male supra anal plate; G, male subgenital plate; H, female ovipositor, dorsal; I, female subgenital plate and ovipositor. Scale bars: A-D, 5 mm; E-I, 1 mm.

FIG. 25. — Cylindrogryllus (Apterotrypa) guyanensis n. sp., male phallic complex: A, dorsal; B, ventral; C, lateral. Female copulatory papilla: D, dorsal; E, ventral; F, lateral. Scale bars: A-C, 1 mm; D-F, 0.5 mm.

FIG. 26. — Cylindrogryllus (Apterotrypa) guyanensis n. sp.,male phallic complex:A, dorsal;B, ventral;C, lateral.Abbreviations:See Material and Methods. Scale bar:1 mm.