Erioloides sikesi 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, : 91-92

Erioloides sikesi Naskrecki and Cohn , n. sp.

Figs. 22 I-H, 23D, 50B, Map 15

Type locality: Costa Rica, Puntarenas Prov., Res. Biol. Monteverde, Estac. La Casona; type depository: Academy of Natural Sciences, Philadelphia – holotype male

Diagnostic description (male, female unknown).— Very similar to the previous species; fastigium of vertex more pointed than in other species of the genus. Male stridulatory file straight, 1.4 mm long, 146 μm wide, with 198 closely spaced and very wide, lamelliform teeth; teeth in proximal half of file thinner and more closely arranged than in distal part ( Fig. 50 B); mirror nearly perfectly square; secondary veinlet next to AA 1 present, parallel to AA 1; stridulatory area of left wing devoid of secondary venation.

Male 10th tergite with deep incision on posterior margin, resulting in two large, pointed lobes (note: Fig. 22 H shows the lobes from above, when the pointed ends of the lobes cannot be seen). Male cercus relatively slender, cylindrical, with small, blunt dorsal spine; apex of cercus blunt ( Fig. 22 I). Titillators flat, squamose, somewhat narrowed towards their apices ( Fig. 23 D). Male subgenital plate with distinct ventral keel and deep triangular incision apically; female subgenital plate broadly triangular, with small, triangular incision at apex.

Coloration.— General coloration light green. Face pale green, mandibles brightly emerald green, labrum yellow. Tegmina green, with contrastingly yellow venation. Legs green; abdomen light green dorsally; purple ventrally.

Measurements.— Table 15 .

Distribution.— This species is known only from its type locality ( Map 15 ).

Material examined.— COSTA RICA: Puntarenas Prov., Estac. La Casona, Res. Biol. Monteverde, 1 - 30 April 1992 (coll. K. Flores) - 1 male (holotype) (ANSP).

Etymology.— This species was named in honor of Derek S. Sikes, a fine coleopterist and good friend.

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. 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.