Sinocentrus Yuan, 2002

Li, Feng-E, Yang, Lin, Long, Jian-Kun, Chang, Zhi-Min & Chen, Xiang-Sheng, 2019, A review of the genus Sinocentrus Yuan (Hemiptera, Membracidae, Centrotinae) with description of a new species from China, ZooKeys 886, pp. 135-144 : 135

Sinocentrus Yuan, 2002

Sinocentrus Yuan, 2002: 170.

Type species.

Sinocentrus sinensis Yuan, 2002: 170, by redescription.

Diagnosis.

Large sized. Frontoclypeus distinct. Suprahumeral horns narrow, acuminate, horizontally extended laterally, width between their apex ca 0.5 to 1.0 times body length. Pronotum highly developed, with anterior part strongly inflated and evenly rounded in profile, metopidium vertical, glabrous and minutely punctate without obvious pubescence. Posterior pronotal process strongly elevated above scutellum at base, slender, elongate, evenly tapered toward apex, straight or slightly sinuate, lateral and dorsal carina well developed, apex extended beyond forewing clavus. Scutellum entirely exposed, posterior margin emarginate. Basal one-fifth of forewing with opaque sclerotization, veins M and Cu fused basally to approximately one-fifth to one-fourth of wing length then strongly divergent, veins M+Cu and R fused basally, with 1 m-cu, 2 r-m, and 1 s crossveins. Hindwing vein R branched into R1, R2+3, and R4+5, vein M branched into M1+2 and M3+4, R4+5 and M1+2 veins not fused (four apical cells present), 1 r-m and 1 m-cu crossveins present, apical limbus broad, with wrinkles. Metathoracic trochanter without spines, tibia with 3 rows of cucullate setae.

Remarks.

This genus can be distinguished from other oriental Centrotinae genera by the following characters: pronotum highly developed, strongly inflated with anterior part evenly rounded, glabrous with minute punctures and no obvious pubescence, suprahumeral horns extended laterad, posterior pronotal process elevated far above scutellum, scutellum emarginate.

Distribution.

China (Hainan, Yunnan) ( Fig. 29 ).

Figures

Figure 29. Geographic distributions of Sinocentrus species: S. sinensis (circle); S. brevicornis Li & Chen, sp. nov. (triangle).