Sinogranulus qishuiheensis Zhang, Chen & Zhang, 2022

Fu, Yan-Zhe, Gao, Jian & Huang, Di-Ying, 2022, Revision of the genus Sinogranulus (Hemiptera, Granulidae) with description of a new species from the Middle Triassic of China, Palaeoentomology 5 (1), pp. 81-89 : 83-84

Sinogranulus qishuiheensis Zhang, Chen & Zhang, 2022

( Figs 1–3 )

Material. Four isolated forewings ( NIGP 179635– NIGP 179638), deposited in the Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, China.

Diagnostic characters (revised after Zhang et al., 2022). Tegmen with stem MP gently curved posteriorly and fused to CuA 1; MP forked obviously apicad of basal crossvein r -mp, with three terminal branches; stem CuA sinuous.

Type locality and horizon. Hejiafang Village , Jinsuoguan Township , Yintai District , Tongchuan City , Shaanxi Province, China; lower parts of the Yanchang Formation; Middle Triassic .

Description (after Zhang et al., 2022). Tegmen length 7.5–8.2 mm, maximum width 2.4–2.6 mm; costal margin smoothly arched, thickened; anteroapical and posteroapical angles widely rounded; apical margin rounded; postclaval margin convex at level of termination of CuP; hyposubcostal carina (= basal section of ScP) strongly convex; basal cell short, with apex sharp; basal crossvein cua-cup greatly inclined; postcostal cell much wider than radial and median cells; stem R with 3–4 terminal branches; at least two crossveins r-mp present; MP nearly straight until tegminal mid-length, then curved posteriorly, forked at basal 0.80 of tegmen length; CuA 1 entirely fused to stem MP and crossvein mp-cua replaced by free base of CuA 1 (MP+CuA 1 referred to below as MP); Pcu slightly sinuous basally and nearly turning vertically to postclaval margin; claval veins Pcu and A 1 fused at about 1/3 of tegmen length, their common portion reaching posterior margin at basal 0.60 of tegmen length; radial cell as wide as or slightly wider than median cell.

Figures

FIGURE 1. Sinogranulus qishuiheensis, photographs (NIGP179635), lower parts of the Yanchang Formation, Shaanxi Province, northern China. A, Part, NIGP179635a. B, NIGP179635a, part. C, NIGP179635b, counterpart. Scale bar = 1 mm.

FIGURE 2. Sinogranulus qishuiheensis, lower parts of the Yanchang Formation, Shaanxi Province, northern China, photographs. A, NIGP179636. B, NIGP179637. C, NIGP179638. Scale bar = 1 mm.

FIGURE 3. Sinogranulus qishuiheensis, line drawings. A, NIGP179635. B, NIGP179636.