Oteana eurynome (Fennah)
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|Oteana eurynome (Fennah)|
Oteana eurynome (Fennah) comb. nov.
Male. 5.0– 5.2 mm (n= 2). Female unknown.
Anterior part of vertex and areolets dark brown, anterior corners of vertex stramineous. Frons testaceous, with dark brown irregular band above frontoclypeal suture. Postclypeus testaceous, anteclypeus dark brown. Carinae of head yellowish. Pronotum with discoidal and ventral areas dark brown, carinae stramineous. Tegulae stramineous. Mesonotum with distinct longitudinal stripes: median stripe dark brown, median carina yellowish, flanked on each side by a yellowish stripe (consisting of lateral carinae and areas enclosed by them), lateral portion of mesonotum testaceous, posterior tip stramineous. Tegmina and wings hyaline, translucent, without any conspicuous pattern. Venation of tegmina yellowish brown, darkening towards distal third, costal vein and pterostigma dark brown. Body dark brown, legs testaceous.
Proportions and carination of head and thorax as well as spinulation of hind legs as described for the genus.
Metatibiae laterally with 1 spine, otherwise as described for the genus.
Male genital complex (figs 60–65)
Genital segment (figs 60, 61) bilaterally slightly asymmetrical, dorsal apical angle of subrectangular lobe slightly more pronounced on right side, rounded; medioventral process sharply ridged posteriorly. Anal segment (figs 62, 63) in dorsal aspect more or less bilaterally symmetrical, broadly ovate. Parameres (fig. 64) in strict lateral aspect distally produced into a rounded lobe directed basad, dorsocaudal margin dentate, tip pointed, directed mediad. Aedeagus (fig. 65): shaft ventrally with 3 spines: right lateral spine (a 1) slender, Sshaped, slightly dilated subapically, curved to the right side; median (a 3) and left lateral spine (a 4) arising from a common base. Median spine variable in shape: compressed, either distally pointed (as in the holotype, fig. 65 b, arrow) or apically incised, bifurcate (as in the paratype, fig. 65 a, arrow). Left lateral spine (a 4) terete, strong, curved gradually to right side. Apical spine of shaft (a 5) arising from a wide base, slender throughout, curved laterobasad. Subapical spine of shaft (a 6) slender at base, broadening subapically, directed laterad to left side. Flagellum with 2 spinose processes: distal flagellum spine (b 1) slender, acute, arising from a strongly sclerotized lateroventral ridge, directed mediad, and a strong, compressed spine arising from ventral flagellum base, curved (latero) basad.
Endemic to Moorea.
Holotype ɗ: Society Islands: Moorea I., N. ridge Mt. Teaharua, 1500–2000ft, 25.IX. 1934, E.C. Zimmerman, BPBM (type nr 2629). Paratype ɗ: same data as holotype, BPBM.
Oteana aimeho sp. nov. (figs 66–72)
Male. 4.8 – 5.3 mm (n= 4). Female. 5.9 – 6.0 mm (n= 4).
Coloration sexually dimorphic:
Male. Median part of vertex and areolets dark brown, posterior corners of vertex whitish. Frons and clypeus dark brown. Carinae of head whitish. Frons with white spot laterally on ascending portion of frontoclypeal suture. Pronotum with discoidal and ventral areas dark brown; carinae whitish. Tegulae whitish. Mesonotum inconspicuously striped longitudinally: laterally dark brown, medially testaceous, carinae yellowish. Tip of mesonotum whitish. Body and legs brownish, metatibiae with a longitudinal whitish stripe, 2 nd and 3 rd metatarsal segments whitish. Tegmina and wings hyaline, translucent; pterostigma and venation of tegmina light brown, slightly darkening towards distal third, costal vein medially (at clavus junction) distinctly darker.
Vividly coloured. Anterior part of vertex and areolets dark brown, posterior corners of vertex white. Frons yellowish brown, darker at apex and above frontoclypeal suture. Median carina of frons and clypeus yellowish, lateral carinae white, frons laterally of ascending portion of frontoclypeal suture white. Postclypeus apically yellowish, darkening towards anteclypeus, anteclypeus dark brown. Pronotum with discoidal and ventral areas dark brown, carinae whitish. Tegulae yellowish. Mesonotum yellowish. Tegmina translucent, venation light brown, darker in distal third, with dark bands along transverse veinlets. Abdominal tergites distinctly striped horizontally: dark brown anteriorly, yellowish brown medially, and yellow posteriorly. Legs yellowish.
Proportions and carination of head and thorax as well as spinulation of hind legs as described for the genus, with slight variation pertaining to the lateral metatibial spines: 3 in males, 2–3 in females.
Male genital complex (figs 66–72).
Genital segment (figs 66, 67) bilaterally slightly asymmetrical: dorsal apical angle of subrectangular lobe acute on left side, rounded on right side; medioventral process in lateral aspect with distal margin serrate. Anal segment (figs 68–70) in dorsal aspect distinctly asymmetrical, right laterally at base produced into a conspicuous earshaped lobe (fig. 68, arrow, fig. 70). Parameres (fig. 71) distally produced into a pointed tip directed mediad; mediodorsal margin serrate. Aedeagus (fig. 72): shaft dorsally with an earshaped protrusion, ventrally with 3 spines: right lateral spine (a 1) arising medially near base, long slender, abruptly bent laterad to the right side at ca. ½ its length; median spine (a 3) and left lateral spine (a 4) inserting with a common base at midlength of shaft; median spine strong, directed apically; left lateral spine more feebly developed, slender, slightly shorter than median spine. Apical spine of shaft (a 5) strongly developed, abruptly bent near base, directed dorsolaterad; subapical spine of shaft (a 6) long, slender at base, directed straight laterad in proximal half of its total length, then rectangularly bent basolaterad to left side, subapically dilated. Flagellum with distal flagellum spine (b 1) welldeveloped, directed basad.
Female genitalia as described for the genus.
Aimeho is an ancient Polynesian name for Moorea.
Endemic to Moorea.
Oteana aimeho differs from O. eurynome by the presence of 2–3 lateral metatibial spines (instead of one in O. eurynome ), and from this and all other Oteana species by the aedeagal spine configuration and the distinctly asymmetrical anal segment.
Holotype ɗ: Society Islands: Moorea, Mt. Rotui, btw. 300–450 m, 3.VI. 2002, ex Metrosideros collina , Weinmannia parviflora, D. M. Percy , BPBM (type nr. 16618). Paratypes: 2 Ψ, same data as holotype; 5 ɗ, 3 Ψ, Moorea, Mt. Mouaputa summit, 730–830 m, “ 399 ”, ex Metrosideros collina , 05.VI. 2002, D.M. Percy, BPBM.
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