Lebinthus hamus 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 : 425-429

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-E641-6825-33D5-25B5B7D7FB8B
treatment provided by	Plazi
scientific name	Lebinthus hamus Baroga-Barbecho & Robillard
status	sp. nov.

Treatment

Lebinthus hamus Baroga-Barbecho & Robillard sp. nov.

( Figs. 1 View FIGURE 1 , 14 View FIGURE 14 , 15 View FIGURE 15 , 20D View FIGURE 20 , 21D View FIGURE 21 , 22D View FIGURE 22 , 23D View FIGURE 23 )

Type materials. Holotype male. Philippines. [Luzon]: Palawan, Tarumpitao , light trap, 1.vi.1958 ( JBB410 ), coll. H.E. Milliron ( BPBM) . Allotype female. [Luzon]: [Palawan], Balabac , Pasig, 4.iii.1957 ( JBB439 ), coll. Yoshio Kondo (MNHN-EO-ENSIF10750) .

Type locality. Philippines. Luzon: Palawan, Tarumpitao ,

Distribution. Philippines. Southern Palawan.

Etymology. The name comes from a Latin word “hamo” which means “hook” referring to the shape of the pseudepiphallic parameres and sclerites in ectophallic arc of male genitalia.

Diagnosis. The species is characterized by its yellowish face, with black bands running in upper part below antennae and eyes, resembling a mustache. It is also characterized by male genitalia with hook-shaped pseudepiphallic parameres and hook-like expansions in ectophallic arc.

Description. Size average for the genus ( Fig. 14 View FIGURE 14 , Table 4). Coloration brown. Head dorsum ( Fig. 20D View FIGURE 20 ) dark brown, with four wide dark brown longitudinal bands; region posterior to eyes yellow. Fastigium dark brown, wider than long, covered with golden brown setae. Scapes yellow, antennae brown. Face yellow with two pairs of black bands, one in upper face below antenna, and another one below eye, extending to gena and mandibles. Mouthparts yellow to brown, with some dark brown markings. Maxillary palpi brown with dark brown patches. Lateral part of head ( Fig. 21D View FIGURE 21 ) yellow, area posterior to eye with a black band linked to black coloration of pronotum. Dorsal disk of pronotum black medially, yellowish near lateral margins. Lateral lobe of pronotum black dorsally, with a small yellow patch on ventral margin. Fore and median legs brownish; femora with dark brown spots, tibiae with thick dark brown rings. Hind femora orange brown, with striated dark brown patterns on outer faces. Knees dark brown, tibiae with dark rings, darker and almost merged apically. Hind tarsomeres with three spines on dorsal outer edge and 0–1 on outer faces (n=2). Abdomen orange brown covered with short golden setae. Cerci brown with dark brown rings.

Male. FWs ( Fig. 22D View FIGURE 22 ) not reaching abdomen mid-length. Cells orange to golden brown, not translucent. M and R golden brown, M/R area whitish, without transverse veins; area between R and Sc dark brown, rest of lateral field progressively lighter toward ventral margin, with dark brown longitudinal veins. 1A slightly curved (<100 °). CuP absent. Diagonal vein faint, barely visible anteriorly. Harp wide, occupying most of dorsal field surface, with a strong transverse harp vein, poly-furcated anteriorly and forming a false mirror, slightly rounded. CuA curved iwards near apex, its distal part weak. Longitudinal veins of dorsal field very strong apically, transverse veins weaker. 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 M, R, Sc and two more ventral veins. Subgenital plate elongate, clog shaped.

Male genitalia ( Figs. 15 View FIGURE 15 A–C). Pseudepiphallic sclerite triangular, widened anteriorly; posterior apex with short triangular lophi curved dorsally and slightly diverging, setose, separated by a wide V-shaped indentation; anterior apex slightly curved anteriorly, its lateral margins slightly curved dorsally. Rami short, highly diverging. Pseudepiphallic parameres hook shaped. Ectophallic arc complete and wide, near bases of pseudepiphallic parameres, prolonged ventrally by hook-like expansions, very sclerotized. Ectophallic fold longer than wide, with two sub-parallel lateral sclerotizations with lateral expansions. Ectophallic apodemes very long, diverging, narrowing apically, exceeding anterior margin of pseudepiphallus. Endophallic sclerite long, almost straight and exceeding anterior margin of pseudepiphallus, with small median expansion and short lateral arms; endophallic apodeme with a small median crest.

Female. FWs ( Fig. 23D View FIGURE 23 ) shorter than pronotum, not overlapping but close together basally, their posterior margin straight. Dorsal field yellowish, with six strong golden brown longitudinal veins, slightly curved apically; with few transverse veins. Lateral field with four strong yellow brown to golden brown longitudinal veins; transverse veins stronger anteriorly. Ovipositor longer than hind femora; apex lanceolate, slightly denticulate on dorsal edge. Copulatory papilla ( Figs. 15D, 15E View FIGURE 15 ) conical, narrow dorso-ventrally; base wide and oblong, sclerotized; apex short, enlarged and rounded, its lateral margins corrugated.

Measurements (in mm). See Table 4.

Habitat. Unknown.