Meg. konishii, Watanabe, 2025

Key to Japanese species of Megaplectes View in CoL View at ENA (Male of Meg. konishii sp. nov. is unknown)

1. Basal part of hind tibia and hind tarsus each with white area ( Fig. 40A). Tegula yellow ( Fig. 40A). Body with strong blue reflection ( Fig. 40A–E). Frons with a pair of large concavities ( Figs. 76D, I).

............................................... Megaplectes konishii sp. nov. -. Body and legs nearly entirely black; at most metasomal tergites slightly tinged with dark blue refection ( Figs. 38A, B, 39A, B, 41A, 43A, B). Tegula black to blackish-brown ( Figs. 38A, 39A, 41A, 43A). Frons with horn(s) ( Figs. 76C, E, H, J), or if without horn; without pair of large concavities.

................................................................................................ 2 2. Frons with pair of horns ( Figs. 76C, H). Face 0.25 × as high as minimum width. Juxtacoxal carina complete. Propodeal apophysis obtusely produced. Smaller species; body length ca. 12–14 mm. Wings brownish-hyaline. Apex of ovipositor without minute teeth dorsally ( Fig. 79I).

............................................... Megaplectes bicornis sp. nov. -. Frons with ( Figs. 76E, J) or without single median horn. Face 0.4–0.45 × as high as minimum width. Juxtacoxal carina absent. Propodeal apophysis sharply produced. Larger species; body length 13.5–20 mm. Wings dark brownish-hyaline. Apex of ovipositor with some minute teeth dorsally ( Fig. 79K).

................... Megaplectes monticola dentatus Uchida, 1930 View in CoL