Igerna malagasica Viraktamath & Goncalves, sp. nov.
Creators: name: Viraktamath, C. A.
name: Gonçalves, Ana Clara
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Igerna
Igerna malagasica

description: Igerna malagasica Viraktamath & Gonçalves, sp. nov.
(Figs 19–22, 30–31, 36, 42, 60, 69, 84–85, 89, 92, 95, 99, 103)
Measurements. Male 3.25–3.50 mm long, 1.10 mm wide across eyes; female 3.55–4.05 mm long and 1.20 mm wide across eyes.
Head and thorax (color). Similar to Igerna delta sp. nov. color pattern (dark brown ground color), with smaller, and paler yellow areas. Face (Fig. 30) with pair of large ochraceous maculae: each one extending dorsally to crown, mesally to ocelli and ventrally to frontoclypeus lateral margins. Frontoclypeus (Fig. 30) with ochraceous mark somewhat rounded in middle; clypellus with lateral margins, and lora central area, ochraceous; genae (except for area adjacent to antennal ledges), pale yellow. Antennae ochraceous, flagellum fuscous. Forewings (Figs 19–20) with outer claval margins and wing margins, ochraceous. Legs (Fig. 19) pale yellow, protibiae and tarsomeres fuscous. Thoracic pleura with paler marginal areas.
Morphology. Similar to I. delta sp. nov.
Male genitalia. Pygofer (Fig. 36), in lateral view, with posterior margin narrowing towards bifid apex, and directed inward; in caudal view (Fig. 84) projection with crenulate dorsal margin and caudoventral margin sinuate. Valve (Fig. 36), about as long as subgenital plates. Subgenital plates, in ventral view, fused to valve, triangular, apex subacute; in lateral view (Fig. 36), extending posteriorly well beyond pygofer, and lacking hair-like and prominent setae. Styles (Fig. 42), in dorsal view, well developed, outer fork truncate and short, bearing scattered setae, inner fork longer with subapical tooth. Connective (Fig. 85), well developed and pigmented, narrower anteriorly than posteriorly; posterior margin bearing two large lobes with distance between them smaller than width of one of them. Aedeagus (Figs 60, 69), symmetrical; with well developed dorsal apodeme, 0.33 times as long as shaft in lateral view, and prominent ventral projection; shaft tubular, slightly angularly curved at basal 0.33, with pair of laterally directed foliaceous expansions having crenulated margin; apex with pair of processes directed lateroventrally; in caudodorsal view, apex U-shaped; gonopore subapical, on ventral margined. Anal tube (Fig. 36), with segment X simple, without any process; segment XI with two well developed spiniform projections on lateral margin.
Female (color). Paler than male, median band on crown differentiated into median stripe and two lateral round spots. Face as in male except in one female (Fig. 31) with dark brown areas strongly reduced. Pronotum either similar to that in male or dark brown areas restricted to an anterior transverse mark, median stripe and large lateral spot on either side of median line (Fig. 22), remaining part of pronotum pale ochraceous. Forewings either as in male or with large hyaline longitudinal areas (Figs 21–22).
Female genitalia. Sternite VII (Fig. 89), in ventral view, with hind margin rounded, bearing a concavity at median area. First valvulae (Fig. 92), in lateral view, dorsally curved from base; dorsolateral surface with reticulate sculptured area (Fig. 95) formed by oblique rows of scale-like processes (gradually from elongate to more circular ones towards apex) on distal 0.75 of shaft; ventroapical region with scale-like processes; dorsoapical and ventroapical margins pseudodentate; apex acute. Second valvulae (Figs 99, 103), in lateral view, slightly dorsally curved from base, with broadest point on apical 0.29 length; with pigmented area before dorsal hyaline area; dorsal prominence present; teeth mostly subtriangular, positioned on distal half of dorsal margin (just behind dorsal hyaline area); shaft apex rounded.
Type material. MADAGASCAR: HOLOTYPE: 3, Province d’Antsiranana, dry forest, 7 km N of Jaffreville, 360 m, 16–31 May 2001, 12o20’S, 49o15’E, California Acad of Science, Malaise trap, MA- 01-07-13 (CAS). PARATYPES: 2 3, same data as holotype; 1 3, 2 Ƥ, Province d’Antsiranana, Parc National Montagne, d’Ambre, 1125 m, 29 January to February 2001, 12o31’ 13”S, 49o10’45”E, California Acad Science, R. HarinHala collector, Malaise trap, MA-01-01D-03; 1 3, 1 Ƥ, same data except 14–30 May 2001, MA-01-01D-11; 1 3 same data except 11 February to 4 March 2001, MA-01-01D-04 (CAS, INHS).
Etymology. The species name alludes to the language of the country (Malagasy) in which it is found. Remarks. Male I. malagasica resembles male of I. delta and female resembles male of I. neosa but the former differs from other species of Igerna known from Madagascar in having both basal and subapical processes on aedeagal shaft.
description: Published as part of Viraktamath, C. A. & Gonçalves, Ana Clara, 2013, Review of Madagascaran Agalliini (Hemiptera: Cicadellidae: Megophthalminae) with descriptions of a new genus and six new species, pp. 1-21 in Zootaxa 3616 (1) on pages 9-10, DOI: 10.11646/zootaxa.3616.1.1, http://zenodo.org/record/283352