Ectatops notatus, 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 : 39-40

Ectatops notatus sp. nov.

( Fig. 6 )

Type material. HOLOTYPE: J, ‘ Sarawak, Mt. Dulit , Dulit Trail, primitive forest, 1,000 ft, 26.VIII.1932, Oxford Univ. Exped., B. M. Hobby & A. W. Moore’ ( BMNH) . PARATYPES: the same locality, 25.VIII.1932, 1 ♀ ; ‘ Sarawak, foot of Mt. Dulit , junction of rivers, old secondary forest. Native collected: Tinjar & Lelek’, 1 ♀ ( BMNH) ; ‘ Borneo [ Sarawak], Matang, Xanthus [leg.]’, 3 JJ 6 ♀♀ ( HNHM, 1 ♀ MMBC) ; ‘ Sarawak, Xanthus [leg.]’, no further data, 1 J ( HNMN) ; without locality, 3 ♀♀ ( HNHM) .

Description. Body mainly black-brown. Head, antennomeres I-III, narrow band on base and two distal thirds of antennomere IV, callar lobe, scutellum, large rounded spot on apex of corium, sternum and zygosternum black. Pronotal lobe, clavus and corium brown, costal margin of lighter colour, membrane greyish brown with pale veins, secondary cell darker than rest of membrane. Small median spot on base of head, lateral margin of pronotum, apex of scutellum, and labium yellow. Labial segment I somewhat darker. Proximal third of antennomere IV (except its base) whitish. Femora black. Distal part of fore coxae and trochanters yellowish. Basal half of middle and hind femora with narrow apical yellowish band, bases of middle and hind tibae also yellowish. Tibiae darker yellowish, their bases (behind a light annulus) and apices and tarsomeres I and III towards apex reddish. Dorsal and ventral laterotergites black, base of each laterotergite on outer side with white spot. Ventral wall of genital capsule black, atrium genitale light, yellowish.

Head large, narrow, in front of eyes very much protruding, of almost horizontal position; eyes large, strongly convex, eye sockets short, distinctly bend upwards. Sides of head from eyes to antenniferous tubercles long, straight and parallel. Medial longitudinal furrow distinct. Antennae slender, long, antennomere III long, only slightly widening towards apex. Labium approximately reaching first third of ventrite VI in males and first third of ventrite V in females. Pronotum narrow, a little wider towards base. Callar lobe strongly convex whereas pronotal lobe almost flat, pronotum thus horizontal. Lateral margin of pronotum very thin, scutellum medially strongly convex (in rare cases hardly convex at all), in males sometimes pointed. Body pear-shaped (particularly in females), widest in distal half of abdomen.

Genital capsule. Ventral wall rather low with bow-shaped furrow. Ventral rim medially with triangle-shaped point, its sides with two distinct rounded protuberances. Ventral rim infolding distally elevated, forming septum to which parameres adhere. Distinct outgrowth placed lateral to parameres (on proximal part of lateral rim infolding), bowl-like deepened on its apex and touched by another outgrowth shaped like a donkey’s ear. Lateral rim infolding distally evenly deepened.

Measurements (in mm, given as means followed by ranges in parentheses). Males. Body length: 9.14 (8.69-9.34). Head: width (including eyes) 2.23 (2.16-2.32), interocular width 1.09 (1.03-1.13). Antenna: antennomere I 2.28 (2.19-2.32), antennomere II 1.93 (1.92-1.94), antennomere III 1.73, antennomere IV 2.05 (2.00-2.11). Pronotum: length 1.93 (1.89-2.11), width 2.54 (2.48-2.65). Scutellum: length 1.09 (1.05-1.13), width 1.39 (1.35-1.40). Corium: length 4.13 (3.89-4.27), width 1.55 (1.51-1.62).

Females. Body length: 12.05 (11.34-12.58). Head: width (including eyes) 2.56 (2.54-2.59), interocular width 1.28 (1.24-1.35). Antenna: antennomere I 2.62 (2.54-2.70), antennomere II 2.29 (2.19-2.35), antennomere III 2.16 (2.11-2.21); antennomere IV 2.39 (2.32-2.48). Pronotum: length 2.28 (2.21-2.32), width 3.17 (3.13-3.24). Scutellum: length 1.35 (1.24-1.43), width 1.76 (1.65-1.84). Corium: length 5.20 (5.02-5.24), width 1.93 (1.89-2.00).

Differential diagnosis. This new species can be easily distinguished from E. nervosus Breddin, 1901 , which also occurs on Kalimantan, as it bears a whitish spot on the base of each outer side of each laterotergite, whereas in E. nervosus the laterotergites are completely black. In E. nervosus the head is more inclined and wider than in the new species, the antennae are shorter, and the pronotum is shorter and wider, particularly in its anterior part. Moreover, the corium is completely dark brown with a large round black apical spot in E. notatus sp. nov., while it is light brown in some specimens of E. nervosus . In the holotype of E. nervosus (‘Banguey [= Baggi Isl.] bei Borneo’) and some other available specimens, only the clavus, the corium from the claval suture to the cubitus, the corial clefts and the distal margin and apex of the corium are dark brown. In others the corium has a somewhat paler area between cubitus and media and not reaching the mesoscutellar apex, and a similarly pale but rounded distal spot between media and radius. The light coloration is more conspicuous in some specimens and the marks merge, forming the shape of a broad inclined letter L. However, the apex of corium is distinctly black in all specimens of E. nervosus .

Etymology. The specific epithet is the Latin adjective notatus (= marked), evoking the white spots on laterotergites.

Distribution. Malaysia: Kalimantan: Sarawak State.

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.