Siobla sheni

Niu, Gengyun & Wei, Meicai, 2010, Revision of the Siobla annulicornis, acutiscutella and sheni groups (Hymenoptera: Tenthredinidae), Zootaxa 2643, pp. 45-65 : 61

sheni group

Diagnosis: Body black, without metallic tinge, apical antennomeres and mesoscutellum pale yellow brown or white, abdomen and legs partly pale; apex of fore wing distinctly infuscate; head dorsally densely and coarsely punctured, temple with linear shiny interspaces; anterior slope of mesoscutellum evenly punctured, interspaces about 1/3 diameter of punctures, shiny; posterior slope coarsely punctured, matt; body hairs straight, shorter than diameter of lateral ocellus; ovipositor much longer than metabasitarsomere; sheath short and broad in lateral view, round at apex; lancet strongly sclerotized, subapical part not broadened, several apical annular sutures entire, serrulae low, slightly protruding.

This is a small group including one known species only at present.