Lebinthus parvus Baroga-Barbecho & Robillard, 2020

Baroga-Barbecho, Jessica B., Tan, Ming Kai, Yap, Sheryl A. & Robillard, Tony, 2020, Taxonomic study of Lebinthus Stål, 1877 (Orthoptera: Gryllidae: Eneopterinae) with description of six new species in the Philippines, Zootaxa 4816 (4), pp. 401-438 : 419-422

publication ID	https://doi.org/ 10.11646/zootaxa.4816.4.1
publication LSID	lsid:zoobank.org:pub:04ABFF21-4F71-4213-8E68-49DDE158CA1C
persistent identifier	https://treatment.plazi.org/id/1012879C-E64B-682F-33D5-2613B491FF6B
treatment provided by	Plazi
scientific name	Lebinthus parvus Baroga-Barbecho & Robillard
status	sp. nov.

Treatment

Lebinthus parvus Baroga-Barbecho & Robillard sp. nov.

( Figs. 1 View FIGURE 1 , 10 View FIGURE 10 , 11 View FIGURE 11 , 20B View FIGURE 20 , 21B View FIGURE 21 , 22B View FIGURE 22 , 23B View FIGURE 23 )

Type materials. Holotype male. Philippines. [Mindanao]: Misamis Or. [Oriental], Mt. Balatukan , 15 km SW of

Gingoog, 1000–2000 m, 1–5.v.1960 ( JBB432 ), coll. H. Torrevillas ( BPBM). Allotype female. Same information as holotype ( JBB431 ) ( BPBM). Paratypes: [Mindanao]: Bukidnon, Mt. Katanglad [Kitanglad], 1480 m, 27–31.x.1959, coll. L. Quate & C. Yoshimoto, 1♂ ( JBB429 ) (MNHN-EO-ENSIF10749); [Mindanao]: Agusan , San Francisco , 10 km SE, 17.xi.1959, 1♀ ( JBB441 ), coll. C.M. Yoshimoto (MNHN-EO-ENSIF10866) .

Additional material examined. Philippines. [Mindanao]: Bukidnon, Mt. Katanglad [Kitanglad], 1480 m, 27–31.x.1959, coll. L. Qauate & C. Yoshimoto, 1♀ juvenile ( JBB430 ) ( BPBM) .

Type locality. Philippines. Mindanao: Misamis Or. [Oriental], Mt. Balatukan , 15 km SW of Gingoog, 1000– 2000 m .

Distribution. Philippines: Misamis Oriental, Mt. Balatukan; Bukidnon, Mt. Kitanglad; Agusan, San Francisco.

Etymology. The name comes from the Latin word “ parvus ” which means “small” referring to the size of the species, which is the smallest Lebinthus among Mindanao species.

Diagnosis. The species is characterized by its general shape and small size, face almost black except the posterior part yellow and yellow marking crossing clypeus and labrum. Pseudepiphallus of male genitalia close to that of L. puyos , from which it differs by triangular shape and pseudepiphallic parameres F-shaped more similar to that of L. sanchezi .

Description. Species size average for the genus ( Fig. 10 View FIGURE 10 ). Coloration brown to dark brown. Head dorsum ( Fig. 20B View FIGURE 20 ) dark brown, with four longitudinal bands; region posterior to eyes and vertex yellow. Fastigium dark brown, wider than long, covered with golden brown setae. Scapes and antennae brown. Face black except posterior part, yellow, with a yellow band crossing from clypeus to labrum; region between antennae with yellow markings. Maxillary palpi brown. Lateral face ( Fig. 21B View FIGURE 21 ) with a yellow band running from vertex to labrum; region posterior to eyes dark brown. Dorsal disk of pronotum straight posteriorly. Lateral lobes black dorsally, ventral margin yellow or brown, with a median dark brown to black patch, sometimes linked to anterior margin or to dorsal dark coloration. Fore and median legs brown, sometimes mottled with dark brown. Hind femora brown, with some dark brown patches on lateral edges of its inner face. Hind tibia shorter than femora, brown to dark brown, with light to faint rings. Hind tarsomeres with 3–4 spines on dorsal outer edge (n=3) and 0–1 on outer faces (n=3). Abdomen dark brown. Cerci brown, tapering, slightly pointed apically, with some dark brown spots.

Male. FWs ( Fig. 22B View FIGURE 22 ) close to that of L. estrellae , not reaching abdomen mid-length. Cells and veins golden brown to dark brown, apex of longitudinal band orange brown to golden brown, M and R orange brown, area in between yellowish, without transverse veins. Sc orange brown, area between R and Sc dark brown; rest of lateral field dark brown, lighter toward ventral margin, with dark brown longitudinal veins. 1A curved (<100 °). Diagonal vein near CuA weak. Harp wide, occupying most of dorsal field surface, with a transverse harp vein, poly-furcated anteriorly, forming a rounded false mirror. CuA curved inwards near apex, connected to false mirror, its basal part weak. Longitudinal veins of dorsal field stronger basally, transverse veins weak. Mirror (d1) not differentiated. Apical field very short, with no bifurcation of CuA posterior to diagonal vein. Lateral field with five strong longitudinal veins including R, Sc, and three more ventral veins; Sc without bifurcating veins. Subgenital plate elongate, clog shaped.

Male genitalia ( Figs. 11 View FIGURE 11 A–C). General shape intermediate between that of L. puyos and L. sanchezi . Pseudepiphallic sclerite elongate, convex dorsally, more or less triangular (more rectangular in L. puyos ), narrowed posteriorly, with short individualized lophi, setose and separated by a wide V-shaped indentation; anterior margin straight, lateral margins slightly curved and raised dorsally. Rami short, prolonging triangular shape of pseudepiphallus. Pseudepiphallic parameres F-shaped (as in L. sanchezi ), curved ventrally. Ectophallic arc complete, deeply curved posteriorly, its base with long ventro-posterior expansions, sclerotized basally. Ectophallic fold with a wide bilobate preapical sclerite, anterior margin indented, posterior with lateral expansions. Ectophallic apodemes parallel and very long, exceeding anterior margin of pseudepiphallus. Endophallic sclerite very long, curved dorsally, exceeding anterior margin of pseudepiphallus, its anterior apex with a small triangular median expansion and short lateral arms; endophallic apodeme made of lateral lamella, without a median crest.

Female. FWs ( Fig. 23B View FIGURE 23 ) very short, reaching posterior margin of first tergite, not overlapping. Dorsal field brown, with six very strong orange brown longitudinal veins. Lateral edges darker, with two golden brown longitudinal veins, slightly curved apically. Ovipositor slightly shorter than hind femora; its apex denticulate on dorsal edge. Copulatory papilla ( Figs. 11D, 11E View FIGURE 11 ) cylindrical, little sclerotized, narrowing apically, its base wide and sclerotized, median area indented; apex elongate, round and enlarged anteriorly.

Measurements (in mm). See Table 2.

Habitat. Based on the information on the labels, the species is found in secondary forested areas in low to average elevation.

Remarks. The type material is from museum collections and was found in different locations in Mindanao. Close examination confirmed that the three known specimens belong to the same species based on the characters of the face and vertex, lateral lobes of pronotum, and wing patterns. The male specimen from Bukidnon only varies from the holotype by slight differences in genitalia—translucent ectophallic fold and slightly longer lophi, which is probably because the specimen had recently molted.