Dindymus albonotum Zhao & Cao, 2024

Zhao, Ping, Ou, Minmin, Cao, Liangming, Liu, Huaiyu & Wang, Jianyun, 2024, One new species and two new records of Pyrrhocoridae (Hemiptera, Heteroptera) from China, ZooKeys 1210, pp. 273-286 : 273-286

Dindymus albonotum Zhao & Cao sp. nov.

Fig. 3 Chinese common name: 黄胸光红蝽

Diagnosis.

The new species, from Yunnan, China, is similar in body shape and coloration to Dindymus brevis Blöte, 1931 , which is distributed in Taiwan, China. However, for D. albonotum sp. nov, the posterior lobe of pronotum is milk-white to yellowish white; the fore-wing membrane is golden yellow, semitransparent, and its posterior part has scattered black markings; the abdominal sterna are black, except for the milk-white posterior margin of fifth segment, and sixth and seventh segments (Fig. 3 a, b ). In D. brevis , the pronotum is completely red, the membrane of fore wing is golden yellow, with a large black round spot; the sternum of abdomen is white except the basal part is black, and the apical part is red ( Rédei et al. 2009).

The new species also resembles Dindymus (Dindymus) flavinotum Stehlík, 2013 in the following characters: the posterior pronotal lobe is milk-white, and the membrane of fore wing is golden yellow and with fewer black markings; the legs are black, with apices of the femora and bases of the tibiae red; the second to fifth abdominal sternites are black; the sixth and seventh are white. In D. flavinotum , the legs are completely black, and the abdominal sternites are red (except black basal parts) ( Stehlík 2013).

Type species.

Holotype, female, China, Yunnan, Puer , 2022 - VI, Zhang Guirong leg., deposited in CAU.

Description.

Coloration. Body red with black and milk-white markings. Antennae black, basal part of first segment red; labium blackish brown, first segment red; posterior pronotal lobe milk white; pleura and sterna of thorax black, posterior margin of pleura and posterior margin of acetabula milk white; leg black, apical part of femora and basal part of tibiae red; abdomen black, posterior margin of fifth sternum of abdomen, sixth and seventh abdominal sternites milk white.

Structure. Body oval. Pronotum and fore wing widened transversely. Head length subequal to width, eyes laterally protruded; anterior and posterior lobe of pronotum gibbose; anterior margin of pronotum not wider than head, and subequal to 1 / 2 of distance between lateral pronotal angles. Posterior margin of anterior pronotal lobe convex anteriorly; posterior pronotal lobe sparsely punctured. Costal margin of corium laterally dilated and smooth, corium (except costal margin) and clavus densely punctured.

Measurements

[female (n = 1), in mm]. Body length 14.78; maximal width of abdomen 7.13. Head length 2.78; head width 2.61; length of synthlipsis 1.39; length of antennal segments I – IV = 4.35, 2.61, 1.91, 3.48; length of labial segments I – IV = 2.52, 2.52, 2.09, 1.22; length of pronotum 2.86; width of pronotum 4.96; length of anterior pronotal lobe 1.22; length of posterior pronotal lobe 1.74; length of scutellum 2.73 length of hemelytron 12.17.

Etymology.

The specific name alludes to the yellow posterior lobe of pronotum of the new species. The Latin noun albonotum means “ yellowish-white thorax ”.

Distribution.

China [Yunnan (Puer)].

Biology.

The specimen was collected from the forest near Wanmu tea garden, in Puer, Yunnan, China.

Figures

Figure 3. Holotype of Dindymus albonotum Zhao & Cao, sp. nov., female, habitus a dorsal view; b ventral view.