Armatillus sulawesiensis, 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 : 631-632

Armatillus sulawesiensis sp. nov.

( Figs. 24-25 , 35 ) Type material. HOLOTYPE: J, INDONESIA: SULAWESI: SULAWESI TENGAH PROVINCE: 15-25 km S of Pendolo, Mayoa env., 7.-10.iv.1999, Bečvář & Zábranský lgt. (PPUA). PARATYPE: The same data, 1 ♀ (MMBC: coll. P. Baňař).

Description. Colouration ( Figs. 24-25 ). Body black, only tibiae and tarsi dark red. Corium entirely black in male, in female apically with small, rounded, yellowish-white spot and a nearby minute spot near costal margin.

Structure. Head wider, its anterior part orthogonal, directed ventrally; frons less gibbous, with indicated longitudinal row basally. Anterolateral margin of antennifer with small spine. Pronotum wide both anteriorly and posteriorly; lateral margins in the level of base of callar lobe very slightly concave. Corial margins only slightly convex, especially in female nearly parallel-sided.

Male brachypterous, clavus and corium indistinctly separated, membrane reduced (both left and right membrane only partly overlapping), only minutely surpassing anterior margin of tergite VII. Females fully macropterous, clavus and corium distinctly separated, both left and right membrane fully overlapping.

Pygophore ( Fig. 35 ). Ventral rim with small triangular incision, lateral margins of incision slightly elevated above remaining parts of ventral rim. Lateral rim infolding semicircular, roundly concave, its lower margin raised.

Female genitalia. Both sides of valvifer I parallel basally, ca. in one-third of genitalia gaping sideways and ending horizontally. Valvifer II completely flat. Laterotergite VIII much larger than laterotergite IX; laterotergite IX smaller, oval, furrowed medially.

Punctation. All body surface with regular coarse punctation, only head, callar lobe and narrow stripe anteriorly on scutellum impunctate.

Measurements (all in mm). Male (holotype, brachypterous). Body length 3.83; head: length 0.38; width (including eyes) 1.40, interocular width 0.94; lengths of antennomeres: 1 – 0.59, 2 – 0.49, 3 – 0.30, 4 – 0.59; pronotum: total length 1.08, width 2.11; scutellum: length 0.92, width 1.24; corium: length 2.35, width 1.30.

Female (paratype, macropterous). Body length 5.13; head: length 0.49; width (including eyes) 1.51, interocular width 1.03; lengths of antennomeres: 1 – 0.86, 2 – 0.57, 3 – 0.38, 4 – 0.70; pronotum: total length 1.32, width 2.62; scutellum: length 1.13, width 1.51; corium: length 3.13, width 1.51.

Differential diagnosis. Another similar species, A. orthocephaloides ( Figs. 26-27 ) from Kalimantan, shares with A. sulawesiensis sp. nov. the small spine on the anterolateral margin of antennifer, but differs in the following characters: both sexes brachypterous, head narrower, anterior part of pronotum narrow, corial margins more convex, body generally more rounded, small pale apical spots on corium present in both sexes, ventral rim of pygophore roundly concave, and margins of this incision distinctly roundly elevated (more distinctly than in the new species) ( Fig. 36 ). See above for measurements of A. orthocephaloides .

Etymology. Patronymic, named after the island of Sulawesi.

Distribution. Indonesia, central Sulawesi.

Figures

Figs. 24-27. Habitus. 24-25. Armatillus sulawesiensis sp. nov.: 24 – holotype, J (3.83 mm); 25 – paratype, ♀ (5.13 mm). 26-27 – A. orthocephaloides (Breddin, 1912): 26 – J (3.83 mm); 27 – ♀ (4.51 mm). Photo: L. Dembický.

Figs. 35-39. Pygophore (posterior view). 35 – Armatillus sulawesiensis sp. nov.; 36 – A. orthocephaloides (Breddin, 1912); 37 – Brancucciana (Rubriascopus) orientalis sp. nov.; 38 – B. (R.) pygmaea (Distant, 1903); 39 – Euscopus tristis sp. nov.