Alcochera nigra, Watanabe, 2024

Watanabe, Kyohei, 2024, Taxonomic Study of Japanese Ctenopelmatinae (Hymenoptera, Ichneumonidae), with Descriptions of 22 New Species, Bulletin of the Kanagawa Prefectural Museum (Natural Science) 53, pp. 39-102 : 62

Key to Japanese species of Alcochera

1. Antenna with a conspicuous white band ( Fig. 15A ).

............. Alcochera flavoclypeata Sheng & Sun, 2021 -. Antenna without a white band ( Figs. 16A, E ).

...................................................................... 2 2. Body length less than 10 mm. Posterior transverse carina of propodeum complete. At least T III with a reddish brown area. Legs with reddish brown and yellow areas. Small species, body length shorter than 11 mm.

....................... Alcochera nikkoensis (Uchida, 1930) -. Body length more than 10 mm. Posterior transverse carina of propodeum absent. Body including legs entirely black ( Figs. 16A, E ). Large species, body length more than 11 mm.

....................................... Alcochera nigra sp. nov.

Figures

Fig.15. Alcochera flavoclypeata Sheng & Sun, 2021 (KPM-NK 84860, male) ―A: lateral habitus;B: head, frontal view.

Fig. 16. Alcochera nigra sp. nov. (A–D: KPM-NK 91248, holotype, female; E, F: KPM-NK 91252, paratype, male) ― A, E: lateral habitus; B, F: head, frontal view; C:propodeum, dorso-lateral view; D: areolet.