Erioloides longinoi Naskrecki and Cohn

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, : 90-91

Erioloides longinoi Naskrecki and Cohn , n. sp.

Figs. 22 B-C, 23A, 23F-G, 36B, 50A, Map 14

Type locality: Costa Rica, Guanacaste Prov., Estac. Pitilla; type depository: Academy of Natural Sciences, Philadelphia – holotype male

Diagnostic description.— Very similar to the previous species. Body slender, small for the genus; wings in both sexes surpassing apices of hind femora by about half their length ( Fig. 37 B). Fastigium of vertex evenly tapered, its apex narrowly rounded, about as long as eye diameter and as wide as scapus ( Fig. 23 F). Face flat, smooth; genal carinae of head poorly developed, hardly discernible. Dorsal surface of pronotum relatively rugose, flat; anterior margin of pronotum straight, posterior one weakly convex ( Fig. 23 G); lateral lobes of pronotum about 1.7 times longer than high, their posterior angles right. Male stridulatory file straight, 1.2 mm long, 130 μm wide, with 239 closely spaced and relatively very wide, lamelliform teeth; teeth in proximal half of file thinner and more closely arranged than in distal part ( Fig. 50 A); mirror approximately rectangular, slightly longer than wide; secondary veinlet next to AA 1 well developed and forming actual margin of mirror; stridulatory area of left wing devoid of secondary venation, distal margin of left mirror convex; secondary veinlet next to AA 1 present, somewhat divergent from AA 1.

Male 10th tergite with two short, rounded, usually more or less parallel lobes ( Fig. 22 B); female 10th tergite with deep, narrowly triangular incision. Male cercus robust, somewhat inflated, with large, blunt, hook-like dorsal spine; apex of cercus constricted ( Figs. 22 B-C). Female cercus simple, elongately conical, distinctly curved. Titillators flattened, squamose, distinctly dilated apically, apices multidentate, divergent ( Fig. 23 A). Male subgenital plate with distinct ventral keel and deep triangular incision apically; female subgenital plate broadly triangular, with small, semicircular incision at apex. Ovipositor relatively slender, with distinct lamella along midline of upper valvula; ratio ovipositor/hind femur 0.61-0.67.

Coloration.— General coloration light green ( Fig. 37 B). Face pale green, mandibles brightly emerald green, labrum dark brown. Tegmina green, with contrastingly yellow venation. Legs green; abdomen light green; ovipositor light brown, with darker apex.

Measurements.— Table 15 .

Distribution.— This species seems to have a wide distribution, ranging from Mexico, through Costa Rica ( Map 14 ), to Panama.

Material examined.— COSTA RICA: Guanacaste Prov., Estac. Pitilla, 9 km S. Santa Cecilia, elev. 700 m, 3 May 1993 (coll. C. Moraga) - 1 female (paratype) (INBio); same locality, 15 June 1994 (coll. C. Moraga) - 1 male (paratype) (INBio); same locality, 15 July 1994 (coll. C. Moraga) - 1 male (holotype) (ANSP); Estac. Pitilla, 9 km S. Santa Cecilia, P.N. Guanacaste, elev. 700 m, 3 June 1993 (coll. C. Moraga) - 1 female (allotype) (ANSP); Estac. Pitilla, 9 km St. Cecilia, elev. 700 m, 15 January 1989 (coll. GNP Biodiversity Survey) - 1 female (paratype) (INBio); Heredia Prov., Finca Naranjo Valenciana, 2 km S Pueblo Nuevo, Sarapiquí, elev. 90 m, 22 August 1992 (coll. M. Ortiz) - 1 male (paratype) (INBio); same locality, elev. 90 m, 9 - 30 September 1992 (coll. M. Ortiz) - 1 female (paratype) (INBio); PANAMA: Canal Zone, Barro Colorado Is., 22 May 1977 (coll. Silberglied/Aiello) - 1 male (paratype) (UMMZ).; MEXICO: 20 mi W Tamazunchale, 19 September 1974 (coll. G. Bohart and W. Hanson) - 1 male (paratype) (EMUS).

Etymology.— This species is named in honor of John (Jack) Longino, one of the founders of the project ALAS , the first large scale inventory of the Arthropoda of the tropical rain forest.

Figures

FIG. 22. Costa Rican species of Erioloides. A. E. consobrinus - female, habitus, B. E. longinoi - male cerci, dorsal view, C. E. longinoi - male left cercus, lateral view, D. E. consobrinus - male cerci, dorsal view, E. E. consobrinus - male left cercus, lateral view, F. E. acutidentis - male cerci, dorsal view, G. E. acutidentis - male left cercus, lateral view, H. E. sikesi - male cerci, dorsal view, I. E. sikesi - male left cercus, lateral view, J. E. latiscobinus - male cerci, dorsal view, K. E. latiscobinus - male left cercus, lateral view.

FIG. 23. Costa Rican species of Erioloides. A-E. titillators, dorsal views: A. E. longinoi, B. E. consobrinus, C. E. acutidentis, D. E. sikesi, E. E. latiscobinus, F. E. longinoi - male face, G. E. longinoi - male head and pronotu, dorsal view, H. E. acutidentis - male head and pronotum, dorsal view.

FIG. 37. Costa Rican species of Conocephalinae s. l. A. Erioloides longipennis - female ovipositing, B. Erioloides longinoi - male, C. Eriolus penicillus - female, D. Conocephalus cinereus - male, macropterous form, E. Neoconocephalus triops - male, brown form, F. Sphyrometopa atlantica - male, inset - nymph.

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.