Dindymus (Dindymus) constanti, Stehlík & Jindra, 2006

Stehlík, Jaroslav L. & Jindra, Zdeněk, 2006, Five new species of the genus Dindymus (Heteroptera: Pyrrhocoridae), Acta Entomologica Musei Nationalis Pragae (suppl.) 46, pp. 21-30 : 27-28

Dindymus (Dindymus) constanti sp. nov.

( Fig. 6 )

Type material. HOLOTYPE: ♀, ‘ Borneo, Kina balu’ [= Malaysia: Sabah Mts.], no further data ( ISNB).

Description. Female. Head dorsally and ventrally, antennomeres I and II (except thicker part at apex), segment I of labium, femora, tibiae, ventrites and female genitalia red. Clavus and corium more distinctly red than the parts listed above. Membrane throughout light grey. Apex of antennomere II, entire antennomere III and ca apical 0.25 of antennomere IV black; rest of antennomere IV whitish. Labial segments II-IV and tarsi reddish black. Callar and pronotal lobe, pleura and basisterna black. Pronotal lobe on base somewhat lighter than callar lobe. Pronotal collar, lateral margins and posterior margin of pronotal lobe, prosternal collar, pronotal epipleuron and posterior pleural flange including epicoxal lobes I-III yellowish. Scutellum black, touched with red distally.

Head narrow, rather long both before and behind eyes. Venter of head in lateral view very slightly convex. Eyes slightly convex, eye tempus little pronounced. Visible part of vertex large, thicker than anterior part of head but with indistinct outline.Antennae and legs slender. Antennomeres I-III only slightly thicker apically, segment III only slightly thicker than segment II, widening only slightly. Labial segments rather slender, labium reaching only to base of ventrite III. Pronotum anteriorly narrow; lateral margins very thin, along entire length almost of same width, their anterior angles rounded, in anterior and posterior part pronouncedly convex, conspicuously sinuate around midlength. Callar and pronotal lobes evenly elevated. Posterior pronotal flange III rather narrow. Fore femora in distal part with two widely spaced small teeth.

Pronotal lobe with even and rather shallow puncturation, becoming gradually weaker towards base. Clavus and corium with dense, fine and even puncturation on entire surface.

Female genitalia. Valvifer I not large, its opposite sides evenly diverging almost from base. Laterotergite VIII more markedly separated, laterotergite IX large and very prolonged towards ventral side, valvifer II fused, strongly protruding towards ventral side, medially with furrow, its sides in middle slightly concave, widening at apex.

Measurements (mm). Body length: 13.45. Head: width (including eyes) 1.97, interocular width 0.27; length of head including visible part of vertex 2.81. Antenna: antennomere I 3.08, antennomere II 2.11, antennomere III 1.65, antennomere IV 2.48. Pronotum: collar length 0.27, callar lobe length 0.70, pronotal lobe length 1.57, total length 2.54, width 3.67. Scutellum: length 1.67, width 1.89. Corium: length 6.80, width 2.32.

Differential diagnosis. Dindymus variabilis Stål, 1870 , from the Island of Mindanao, Philippines, differs from the new species by the very shiny head and pronotum, the distinctly black pronotum not skirted along all its edges by a yellowish white margin, the black legs, the longer antennae and legs, and the black membrane (except base and apex). Dindymus seminiger Blöte, 1931 , differs from the new species by its much wider head and pronotal base, its head and legs being black instead of reddish, and the pronotum entirely black without pale margin, which applies also to the clavus and corium up to the claval apex. In females the posterior pleural flanges I and II are black instead of yellowish. From D. rubiginosus (Fabricius, 1787) and D. bifurcatus sp. nov., the new species differs, besides other characters, by the red pronotum without pale margin.

Etymology. We have named this new, very ornamental species in honour of Jérôme Constant of the Institut royal des Sciences naturelles de Belgique, Bruxelles, who has kindly lent us specimens deposited at his institution.

Distribution. Malaysia (Kalimantan: Sabah).

Figures

Figs. 6-7. 6 – Dindymus constanti sp. nov., holotype, female. 7 – D. wynigerae sp. nov., holotype, female.