Strongylogaster tianmunica, Liu & Li & Wei, 2021

Liu, Mengmeng, Li, Zejian & Wei, Meicai, 2021, Review of Strongylogaster Dahlbom (Hymenoptera: Tenthredinidae) from Zhejiang Province, China, with the description of a new species, Zoologia (e 63051) 38, pp. 1-7 : 2

Key to species of Strongylogaster Dahlbom, 1835 from Zhejiang Province, China

1. Clypeus black; hind anal cell sessile; claw with inner tooth; female apical sheath with divergent lateral scopas; body length 10–12mm ..................................................... 2

1’. Clypeus white; hind anal cell distinctly petiolate; claw without inner tooth; female apical sheath with short lateral branches; body length 6–8mm ................................. 3

2. Claw with a large inner tooth; head rugose, mesonotum and mesepisternum densely punctate, without smooth area; broad posterior band on abdominal tergites 2–8 yellowish-white; pterostigma partly yellowish-brown; ovipositor apical sheath with very large lateral scopas .......... ............................................ S. xanthocera ( Stephens, 1835)

2’. Claw with a minute inner tooth; head largely smooth, mesonotum and mesepisternum smooth and shiny, impunctate; narrow posterior margin of abdominal tergites 2–6 brown; pterostigma entirely black; ovipositor apical sheath with small lateral scopas ..... S. tianmunica sp. nov.

3. Mesepisternum strongly shiny, surface very smooth, without punctures or microsculptures; narrow posterior margins of abdominal terga yellowish-white .................. 4

3’. Mesepisternum feebly shiny, surface with dense and minute punctures mixed with microsculptures; several middle terga largely yellowish-brown to reddish-brown......... ........................................................ S. macula ( Klug, 1817)

4. Middle fovea triangular in shape; inner orbits densely microsculptured; petiole of hind anal cell as long as breadth of anal cell ..................................... S. takeuchii Naito, 1980

4’. Middle fovea subquadrate in shape; upper inner orbits smooth and shiny; petiole of hind anal cell longer than breadth of anal cell ............... S. formosana ( Rohwer, 1916)