Ectatops schoenitzeri, Stehlík & Jindra, 2008

Stehlík, Jaroslav L. & Jindra, Zdeněk, 2008, New taxa of the Largidae and Pyrrhocoridae (Hemiptera: Heteroptera) from the Oriental Region, Acta Entomologica Musei Nationalis Pragae 48 (2), pp. 611-648 : 643-645

Ectatops schoenitzeri sp. nov.

(Figs. 43, 47) Type material. HOLOTYPE. J, INDONESIA: SULAWESI: SULAWESI SELATAN PROVINCE: ca. 15 km W of Palopo, 18.- 19.viii.1990, A. Riedel lgt. (ZSMC). PARATYPES: The same data, 2 JJ 2 ♀♀ (ZSMC).

Description. Colouration (Fig. 43). Head, callar lobe, scutellum (except of apex), smaller median and larger apical oval spot on corium, membrane (except of veins), sternum and zygosternites black. Antennomeres 1-3 black, antennomeres 2-3 basally narrowly whitish; antennomere 4 basally and in apical half black, rest of basal half white. Pronotal lobe dark brown. Femora pale brown, in distal third towards apex gradually blackened; tibiae of males pale brownish, basally narrowly whitish, then narrowly blackish as well as on apex; tibiae of females sometimes nearly black; tarsi paler, especially at base. Labium darker yellowish. Apex of scutellum, lateral pronotal margin, pronotal epipleuron, and hypocostal lamina whitish yellow. Veins of membrane pale. Ventral and dorsal laterotergites black with pale spots in posterior part; spots on dorsal laterotergites across entire width. Clavus and corium brownish; smaller median black spot on corium not well delimited with diffuse margin; larger apical black spot well delimited.

Structure. Head smaller, narrow; frons nearly flat; eye sockets only slightly raised; eyes small, distance between anterior margin of eye to antennifer short, distinctly shorter than distance from antennifer to apex of clypeus. Head in lateral view not horizontal but somewhat sloping. Antennae very slender; antennomere 3 only apically widened. Labium of male reaching or even surpassing half-length of ventrite VI, in female surpassing only anterior margin of ventrite VI. Callar lobe shorter; pronotal lobe longer (ratio in male 11: 20, in female 12: 22), distinctly widened towards base and rather gibbous; lateral pronotal margin narrow. Scutellum strongly gibbous and rounded in lateral view, apex flat. Costal margin basally narrow, at level of two thirds of scutellum length distinctly widened and strongly rounded towards apex of corium; laterotergites similarly rounded.

Pygophore ( Fig. 47 ). Ventral wall with distinctly curved furrow (its ends pointing ventrally), ventral wall under this furrow medially strongly gibbous. Ventral rim strongly incised, medially markedly thickened with triangular spicula, these separated by a furrow from remaining parts of incision. Margins of incision strongly elevated, black pubescent, then slowly sloping towards lateral margins. In lateral view, margin distinctly depressed at intersection of ventral and lateral rim; lateral rim more strongly raised, sharp, nearly straight, skewed towards dorsal rim; dorsal rim sharp, slightly round incised. Lateral rim infolding gibbous with keel-like, nearly horizontal formation behind elevated margins of ventral rim incision, and separated by a furrow from remaining parts. Black fovea-shaped depression present behind the furrow, rest of lateral rim infolding of triangular shape, sloping into genital chamber, barely concave. Lower margin of lateral rim incised, leaving space for parameres. Anal tube wide, horizontally positioned, reaching middle of genital chamber. Parameres stout, apically rounded, projected into small beak-like process curved into genital chamber. Parameres leaning against rectangular vertical process with upper margin rounded.

Punctation. Pronotal lobe, clavus, and corium with very distinct black punctures (except the black apical spot on corium).

Measurements (all in mm). Male (n = 3). Body length 8.27 (7.99-8.67); head: width (including eyes) 2.00 (1.94-2.08), interocular width 1.08 (1.03-1.13); lengths of antennomeres: 1 – 1.96 (1.89-2.05), 2 – 1.68 (1.59-1.73), 3 – 1.48 (1.43-1.51), 4 – 1.82 (1.78-1.89); pronotum: length 1.64 (1.57-1.78), width 2.61 (2.48-2.81); scutellum: length 1.08 (1.08-1.08), width 1.55 (1.40-1.62); corium: length 3.53 (3.46-3.62), width 1.58 (1.57-1.59).

Female (n = 2). Body length 10.04/9.72; head: width (including eyes) 2.21/2.19, interocular width 1.19/1.13; lengths of antennomeres: 1 – 2.27/-, 2 – 2.11/-, 3 – 1.67/-, 4 – 1.94/-; pronotum: length 1.94/1.84, width 3.18/3.02; scutellum: length 1.40/1.19, width 1.84/1.78; corium: length 4.43/4.32, width 2.00/1.89.

Differential diagnosis. This species seems to be related to E. notatus Stehlík & Jindra, 2006 (Kalimantan: Sarawak), and E. nervosus Breddin, 1901 (Kalimantan) , all of them sharing the same shape of the head. The latter two species differ from E. schoenitzeri sp. nov. by their slender body; larger and nearly horizontal head, eyes more elevated upwards, the distance between eye and antennifer larger than distance from the antennifer to apex of clypeus; callar lobe larger than pronotal lobe, and far less distinct punctation. Neither E. notatus nor E. nervosus posses the black median spot on the corium. Ectatops nervosus is also easily distinguished by having the laterotergites unicolorously dark and the corium dark brown with a pale, somewhat L-shaped pattern. In E. notatus the laterotergites have a pale spot, which is however situated anteriorly and only on the outer margin (in E. schoenitzeri sp. nov. it is situated posteriorly and spread across the entire width of the laterotergite).

Etymology. This species is dedicated to Prof. Klaus Schönitzer (Zoologische Staatssammlung, Munich, Germany), a renowned specialist in the Hymenoptera, as an acknowledgment for the loan of the Pyrrhocoroidea from the ZSMC collection.

Distribution. Indonesia, south-western Sulawesi.

Figures

Figs. 44-50. 44-47 – pygophore (posterior view): 44 –Ectatops riedeli sp. nov.; 45 – E. subjectus Walker, 1873; 46 – E. sulawesiensis Stehlík & Jindra, 2006; 47 – E. schoenitzeri sp. nov. 48-50 – parameres: 48 – E. riedeli sp. nov.; 49 – E. subjectus (two different views of apical portion); 50 – E. sulawesiensis.