Ectatops sulawesiensis, Stehlík & Jindra, 2006

Stehlík, Jaroslav L. & Jindra, Zdeněk, 2006, New species of Largidae and Pyrrhocoridae (Heteroptera) from the Oriental region, Acta Entomologica Musei Nationalis Pragae 46, pp. 31-41 : 37-38

Ectatops sulawesiensis sp. nov.

( Fig. 5 )

Type material. HOLOTYPE: J, ‘ Indonesia, Sulawesi Utara, Dumoga-Bone Nat. Park, Hogg’s Back Subcamp (660 m a.s.1.) 15.XI.1985, Station: 095, Project Wallace, leg. R. Bosmans & J. Van Stalle’ ( ISNB) . PARATYPES: Same data as holotype, 1 J 4 ♀♀ ( ISNB) ; ‘ Indonesia, Sulawesi Utara, Dumoga-Bone N. P., January 1985, R. Ent. Soc. Lond., Project Wallace, foliage of fallen tree’, 1 J ( BMNH) ; the same data, December 1975, on light, 1 ♀ ( BMNH) ; ‘ Indonesia, Sulawesi Utara, Dumoga-Bone N. P., November 1985, in los house „Hoggs Back“, coll. G. B. White’, 3 JJ ( BMNH) .

Description. Head, antennae, labium, callar lobe, scutellum (except apex), femora (except bases), membrane (except base) and ventral side of body including laterotergites black. Base of head with reddish medial spot. Antennomeres II and III with narrow whitish basal band; antennomere IV with narrow black basal band followed by whitish coloration up to its midlength. Coxae, fore and middle femora narrowly pale, up to one third of hind femora and very thin band on base of tibiae also light. Tibiae and tarsi pale with tibial bases and apices dark, tarsi dark at apex. Pronotal lobe, clavus, corium, and hypocostal lamina brown to dark brown. Lateral margin of pronotum with thin yellow band (including edge but not on ventral side of pronotal epipleuron). Narrow costal margin, apex of corium and base of membrane light greyish brown. Membrane and veins concolorous, black, both of lighter colour on membrane base. Genital capsule black, yellow on ventral side, black coloration extending medially onto yellow area.

Head rather wide, elongate and diagonally inclined, eye sockets well developed, eyes directed sideways and somewhat upwards. Antennae slender, rather short, antennomere III not conspicuously widening towards apex. Labium reaching from midlength to hind margin of ventrite III. Pronotum rather wide, callar and pronotal lobes distinctly convex; lateral margin of pronotum slightly sinuate near midlength. Mesoscutum distinctly depressed, mesoscutellum distinctly elevated, apex totally straight; distal third with transverse wrinkles. Legs short; fore femora in apical part with two and one minute denticles.

Genital capsule wider than long; ventral wall with medial furrow distinctly convex in low- er part; ventral rim medially depressed with infolding medially overturned, medially with small tip, the latter laterally with small indentation; laterally adjacent to the indentation wider flat outgrowth of oblique position, its outer side rounded, its inner side almost vertical, its apex thicker with black hairs; lateral rim of ventral wall sharp, sharply bent at point of contact with ventral rim, running diagonally straight to dorsal rim; ventral margin of lateral rim infolding bent with rounded indentation at apex of outgrowth on bend, outgrowth narrowing to point behind indentation.

Head with silvery pubescence denser than that on callar lobe; clavus and corium with evenly spaced coarse punctures.

Measurements (in mm, given as means followed by ranges). Males. Body length 9.74 (9.45-9.99). Head: width (including eyes) 2.57 (2.54-2.62), interocular width 1.48 (1.46- 1.51). Antenna: antennomere I 2.14 (2.05-2.27), antennomere II 1.62 (1.57-1.67), antennomere III 1.39 (1.57-1.40), antennomere IV 1.63 (1.57-1.67). Pronotum: length 2.05 (2.00- 2.11), width 3.21 (3.13-3.35). Scutellum: length 1.22 (1.13-1.35), width 1.82 (1.78-1.89). Corium: length 4.52 (4.48-4.59), width 1.76 (1.73-1.78).

Females. Body length 2.17 (2.11-2.27). Head: width (including eyes) 2.78 (2.75-2.81), interocular width 1.58 (1.57-1.62). Antenna: antennomere I 2.33 (2.16-2.43), antennomere II 1.73 (1.62-1.84), antennomere III 1.46 (1.35-1.48), antennomere IV 1.68 (1.51-1.84). Pronotum: length 2.30 (2.24-2.32), width 3.75 (3.62-3.83). Scutellum: length 1.52 (1.46-1.59), width 2.08 (2.00-2.21). Corium: length 5.24 (5.18-5.35), width 2.17 (2.11-2.17).

Differential diagnosis. The morphology and measurements of this new species are very similar to E. subjectus Walker, 1873 , also from Sulawesi. However, the coloration of the new species is very constant while that of E. subjectus is very variable: pronotum, clavus, and corium range from almost black to pale reddish brown; the callar lobe is black and always darker than the pronotal lobe, which is usually less dark on disc (reddish) than laterally (almost black) and is uniformly light brown in the type specimen; lateral margins of the pronotum are usually red (orange in the type) as are the costal margin of corium (not necessarily reaching the apex of corium in very dark specimens), claval commissure and apex of corium; the reddish coloration of the apex of corium extends partly or entirely to the distal margin of corium. The corium is unicolored in pale specimens (including the type). The body of E. subjectus is black in ventral view, only the longitudinal protrusion and bases of middle and hind femora are red. In the type specimen the laterotergites, apex of abdomen and femora are dark reddish.

Males of both species are best distinguished by the shape of the dorsal rim of the genital capsule. In E. subjectus the dorsal rim bears mediolaterally a pair of stick-like outgrowths with a narrow base and pale apical hairs. The new species has a lateromedial pair of outgrowths on the ventral rim; the outgrowths are wide, laterally depressed, not high, of inclined position, and with rounded apices with black hairs.

Etymology. Patronymic.

Distribution. Indonesia (Sulawesi).

Figures

Figs. 3-7. 3 – Delacampius grossepunctatus sp. nov., holotype, brachypterous female. 4 – D. subtilepunctatus sp. nov., holotype, brachypterous female. 5 – Ectatops sulawesiensis sp. nov., holotype, male. 6 – E. notatus sp. nov., paratype, female. 7 – Euscopus rubens sp. nov., holotype, female.