Eriolus duplidentis Naskrecki

Piotr Naskrecki, 2000, Katydids of Costa Rica / Vol. 1, Systematics and bioacoustics of the cone-head katydids (Orthoptera: Tettigoniidae: Conocephalinae sensu lato)., Philadelphia, PA: The Orthopterists Society at the Academy of Natural Sciences of Philadelphia, : 118

Eriolus duplidentis Naskrecki , sp. n.

Figs. 32 A-E, 50D, Map 16

Type locality: Costa Rica: Puntarenas Prov., Parque Nacional Manuel Antonio, Quepos; type depository: Academy of Natural Sciences, Philadelphia – holotype male

Diagnostic description.— Body small, slender, with wings in both sexes extending beyond apices of hind femora by about half of their length ( Fig. 31 A). Fastigium of vertex short, rounded apically, without ventral keel, as long as eye diameter ( Figs. 31 B-C). Prosternum unarmed. Male stridulatory file nearly straight, 0.87 mm long, 96 μm wide, with 242 closely spaced and relatively very wide teeth ( Fig. 50 D); mirror of stridulatory apparatus approximately rectangular; secondary veinlet next to AA 1 present, parallel; stridulatory area of left wing devoid of secondary venation.

Tenth tergite in both sexes with shallow, widely triangular incision; male cercus conical, with small, thick basal spine, and large, heavily sclerotized protuberance midlength, above spine ( Fig. 31 D); female cercus simple, elongately conical, somewhat curved. Male titillators flattened, with apices rounded and each armed with simple, small spine ( Fig. 31 E). Male subgenital plate with shallow, rounded emargination on its hind margin, and no traces of styli; female subgenital plate approximately trapezoidal in shape. Ovipositor short, sickle-shaped, about as long as half of hind femur (ratio ovipositor/ hind femur 0.44-0.55) ( Fig. 31 A).

Coloration.— General coloration light green; clypeus and mandibles green; pronotum in both sexes with two thin, yellow stripes on dorsal edges of pronotum; posterior edge of metazona in male sometimes with two small, brown, rectangular markings.

Measurements.— Table 23 .

Distribution.— This new species occurs in wet, lowland rainforests of the Pacific coast of Costa Rica ( Map 16 ).

Material examined.— COSTA RICA: Puntarenas Prov., Estac. Queb. Bonita, Res. Biol. Carara, elev. 50 m (coll. P. Campos) - 1 male (holotype) ( ANSP); Estac. Quebrada Bonita, R.B. Carara, elev. 50 m, 15 March 1994 (coll. J. Saborio) - 2 females (allotype, paratype) ( ANSP); same locality, elev. 50 m, 15 April 1994 (coll. J. Saborio) - 2 females (paratypes) ( INBio); Estac. Sirena ( ACOSA), elev. 100 m, 6 - 12 April 1995 (coll. A. Picado) - 1 male (paratype) ( INBio); Osa Peninsula, Rincón, 5.5 mi. S, 1 March 1966 (coll. H.R. Roberts) - 1 male (paratype) ( ANSP); Osa Peninsula, 3-10 mi. S Rincón, 7 - 20 February 1967 (coll. H.R. and E.H. Roberts, M.S. Harrison, W.W. Moss, D.A. Nickle) - 1 male, 1 female (paratypes) ( ANSP); P. N. Manuel Antonio, Quepos, 20 August 1993 (coll. G. Carballo) - 1 male, 2 females (paratypes) ( INBio); Rincón, Osa Peninsula, 5.5 mi. S, 24 February 1966 (coll. H.R. Roberts) - 1 male (paratypes) ( ANSP); Rincón, Osa Peninsula, insecticide in forest, 6 mi. S, 27 February 1966 (coll. H.R. Roberts) - 1 female (paratype) ( ANSP); Rincón, Osa Peninsula, insecticide in forest btw. Rincón and air strip, 26 February 1966 (coll. H.R. Roberts) - 1 male (paratype) ( ANSP); San José Prov., Estac. Bijagual, 600 m N de Bijagualito, elev. 500 m, 1 - 31 March 1995 (coll. J.C. Saborio) - 1 female (paratype) ( INBio).

Figures

FIG. 31. Eriolus duplidentis. A. female - habitus, B. female face, C. female head and pronotum, dorsal view, D. male cerci, dorsal and posterior views, E. titillators.

FIG. 32. Costa Rican species of Eriolus. A-D. E. penicillus: A. male cerci, dorsal view, B. ovipositor, C. epiphallus, posterior view, D. epiphallus, lateral view, E-G. E. acutipennis: E. male cerci, dorsal view, F. ovipositor, G. titillators.

FIG. 50. Stridulatory files of Costa Rican species of Conocephalinae s. l. A. Erioloides longinoi, C. Erioloides sikesi, C. Erioloides acutidentis, D. Eriolus duplidentis, E. Eriolus aculeus, F. Eriolus penicillus, G. Subria scutellaris, H. Subria crassicerca.

MAPS 13 - 18. Distribution of species of Conocephalinae s. l. in Costa Rica. 13. Sphyrometopa femorata, S. atlantica, Eppia truncatipennis, 14. Erioloides longipennis, E. macrocephalus, E. longinoi, E. brevipennis, 15. Erioloides, consobrinus, E. acutidentis, E. latiscobinus, E. sikesi, 16. Eriolus aculeus, E. acutipennis, E. duplidentis, E. penicillus, 17. Subria sylvestris, S. crassicerca, S. scutellaris, 18. Podacanthophorus alas, P. nelciae, P. vargasi, P. maylinae.