Neometrypus mejdalanii, Campos & Souza-Dias, 2021

Campos, Lucas Denadai De & Souza-Dias, Pedro G. B., 2021, Hidden in the bushes: uncovering the diversity of the genus Neometrypus Desutter 1988 n. status (Orthoptera: Gryllidae: Paroecanthini: Tafaliscina) in Neotropical forests, Zootaxa 5060 (4), pp. 451-488 : 475-477

Neometrypus mejdalanii n. sp.

( Figs 1G, H ; 17 ; 18 ; 23 ; 25 ; Table 8)

Etymology. Species named after Gabriel Luis Figueira Mejdalani, hemipterologist (specialist in Cicadellidae ), and professor at the Departamento de Entomologia of the Museu Nacional.

Type locality. Brazil, Rio de Janeiro, Teresópolis .

Type material. Holotype male. BRASIL, R[io de]J[aneiro], Teresópolis/ P[arque] N[acional] da Serra dos Órgãos/ sede – 992m / 01–05.V.2019 / Souza-Dias e equipe cols. | MNRJ-ENT6-29509; MNRJ . Allotype female. Same data as for holotype | MNRJ-ENT6-29198; MNRJ . Paratype males. (1) Same data as for holotype | MNRJ-ENT6- 29199; MNRJ. (1) Same data as for holotype | MNRJ-ENT6-29196; MNRJ. (1) Brasil, R[io de]J[aneiro], Teresópolis / P[ar]q[ue] Nac [ional] Serra dos Orgãos / 22°23’S // 42°56’W (mata)/ 21–17.II.1997 / F.A.G. Mello – N.D. Jago, leg.; BOTU. (1) Brasil, R[io de]J[aneiro], Teresópolis/ Faz[enda] Revolta. II-[19]96/ 22°26’78”S // 42°56’50”W / F.A.G. Mello – S.S. Nihei, leg.; MZSP. Paratype females. (1) Same data as for holotype | MNRJ-ENT6-29510; MNRJ. (1) Brasil, R[io de]J[aneiro], Teresópolis/ P[ar]q[ue] Nac[ional] Serra dos Orgãos/ 22°23’S // 42°56’W (mata)/ 21–17.II.1997 / F.A.G. Mello – N.D. Jago, leg.; BOTU. (1) Brasil, R[io de]J[aneiro], Teresópolis / Faz [enda] Revolta. II-[19]96/ 22°26’78”S // 42°56’50”W / F.A.G. Mello – S.S. Nihei, leg.; MZSP .

Diagnosis. This species is separated from the other species of Neometrypus by the following characters: abdominal tergites with medium brown spots on posterior margin and a median band medium brown fading on posterior margin, except on the last three tergites. Male: anterior margin of median projection of metanotum sub-straight; Male genitalia: apex of ventral lobe of PsP finger-shaped, shorter than dorsal lobe, curved anteriorly; apex of r bifid; apex of EctAp curved laterally. Female genitalia: posterior margin of copulatory papilla truncated.

Description. General morphology. Head. Fastigium as long as wide, pubescent ( Fig. 17A, G ). Lateral ocelli rounded, median ocellus absent ( Fig. 17C ), frons smooth ( Fig. 17C ). Antennal scape longer than wide, inner margin with bristles. Maxillary palpi articles 3, 4, and 5 almost same-sized, article; article 5 slightly upcurved ( Fig. 17B ).

Thorax. DD longer than wide, covered by bristles. DD cephalic margin straight, caudal margin slightly convex ( Fig. 17A, G ). LL ventro-cephalic angle rounded; ventro-caudal angle gradually ascendant in lateral view ( Fig. 17B, H ). FWs not surpassing posterior margin of metanotum ( Fig. 17A, G ).

Legs. TI with three apical spurs, two ventral, one dorsal. TII with four apical spurs, two ventral, two dorsal. TIII subapical spurs with two (sometimes one) spines between each spur, nine or eight spines above subapical spurs on inner and outer sides. TIII inner apical spurs: iad>iam>iav; outer apical spurs: oam>oav>oad, oav and oad almost same-sized. Basitarsus dorsal spines 3/1 (rarely 2/1); outer and inner apical spurs same-sized.

Abdomen. Tergites pubescent ( Fig. 17A, G ); Supra anal plate posterior margin rounded ( Fig. 17E, I ).

Male. Anterior margin of median projection of metanotum sub-straight; posterior margin wider than anterior margin in dorsal view, trapezoidal ( Fig. 17D ). Subgenital plate longer than wide, posterior margin rounded ( Fig. 17F ).

Male genitalia ( Fig. 18A–D ). Pseudepiphallus: pseudepiphallic sclerite straight in lateral view, anterior margin concave on median region, lateral region upcurved in lateral view ( Fig. 18A–C ). LLophi curved inwards, posterior margin rounded in dorsal and ventral views; inner margin membranous, outer margin sclerotized, thin ( Fig. 18A ). PsP same-sized as LLophi, posterior margin divided into two lobes, reaching posterior margin of pseudepiphallic sclerite in dorsal and ventral views ( Fig. 18A, B ); apex of dorsal lobe finger-shaped, curved inwards; apex of ventral lobe finger-shaped, shorter than dorsal lobe, curved anteriorly ( Fig. 18B ). r elongate, longer than pseudepiphallic sclerite, flattened laterally, apex bifid ( Fig. 18A–C ). Ectophallic invagination: EctAp longer than LLophi, straight, inclined to outwards in dorsal and ventral views, apex curved laterally ( Fig. 18A–C ); arc not complete, curved posteriorly; ventral projections of ectophallic invagination short, same size as arc ( Fig. 18B ).

Female. Body larger than male ( Fig. 17G, H ). Subgenital plate wider than long, posterior margin concave on the middle ( Fig. 17J ). Ovipositor as in fig. 17I, J.

Female genitalia. Copulatory papilla ( Fig. 18E–G ) longer than wide, straight in lateral view; distal margin truncated; proximal margin of dorsal and ventral faces rounded. Anterior region of dorsal face depigmented.

Coloration. Male and female with similar coloration. Occiput, vertex, pronotum, and abdominal tergites light brown to yellowish-brown ( Fig. 17A, G ). Occiput with two median and two lateral longitudinal stripes medium brown ( Fig. 17A, G ). Face light brown with stripes medium brown on the middle and under antennal scapes in frontal view ( Fig. 17C ); antennal scape light brown, antennomeres light brown. FWs slightly translucent, light brown; median projection of metanotum yellow, anterior margin whitish ( Fig. 17D ); abdominal tergites with medium brown spots on posterior margin and a median band medium brown fading on posterior margin, except on the last three tergites ( Fig. 17A, G ), last abdominal tergite dark brown; sternites light brown almost whitish; supra anal plate anterior portion medium brown, posterior portion light brown ( Fig. 17E ); subgenital plate ocher, anterior margin lighter ( Fig. 17F ); female subgenital plate light brown ( Fig. 17J ); cerci light brown; ovipositor apex reddishbrown ( Fig. 17I, J ). FI and FII light brown, medium brown spotted, TI and TII light brown median brown spotted; FIII yellowish-brown to light brown, slightly medium brown striped, distal apex slightly darker; TIII light brown, dark brown spotted on the base of subapical spurs; spurs light brown with apex medium brown; tarsomeres light brown ( Fig. 17B, H ).

Figures

FIGURE 1. Neometrypus species, adults living habitus: N. marcelae n. sp. A—male, B—female; N. catiae n. sp. C—male, D—female; N. couriae n. sp. E—male, F—female; N. mejdalanii n. sp. G—male, H—female; N. lopesae n. sp. I—male (photo: © Bernardo Ferraz), J—female (photo: © Bernardo Ferraz).

FIGURE 17. Neometrypus mejdalanii n. sp. Male: A—habitus, dorsal; B—habitus, lateral, C—head, frontal; D—metanotum, dorsal; E—supra anal plate; F—subgenital plate and last abdominal sternites. Female: G—habitus, dorsal; H—habitus, lateral; I—supra anal plate and ovipositor, dorsal; J—subgenital plate and ovipositor, ventral. Scales A–B, G–H: 5mm; C–F, I–J: 1mm.

FIGURE 18. Neometrypus mejdalanii n. sp. Male genitalia: A—dorsal, B—ventral, C—lateral, D—posterior. Copulatory papilla: E—dorsal, F—lateral, G—ventral. Scales 1mm. Abbreviations see material and methods.

FIGURE 23. Distribution map of the type localities of Neometrypus n. status species.

FIGURE 25. A—N. maiae n. sp., female and male copulating anterior view (photo: © Darlan Rutz Redü); B—N. maiae n. sp., female and male copulating posterior view (photo: © Darlan Rutz Redü); C—N. mejdalanii n. sp., female and male copulating in lateral view. Legend: s—spermatophore.