Apsilops scotinus
Creators: name: Kyohei Watanabe
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Apsilops
Apsilops scotinus

description: Apsilops scotinus (Tosquinet, 1903)
(Standard Japanese name: Kebuka-togari-himebachi)
(Figs. 1B, 3C, 5A–C) Cryptus scotinus Tosquinet, 1903: 229.
Description. Female (n=3). Body length 7.0 mm, covered with dense silver setae except for smooth T1 (Figs. 5A–C).
Head 0.5 times as long as wide. Clypeus 0.5 times as long as wide, strongly convex (Fig. 1B), densely punctate except for flattened lower margin. Face 0.4–0.5 times as long as wide, mat, weakly convex medially (Fig. 1B). Frons slightly concave, with smooth area above antennal sockets. Occipital carina complete, its lower end joined with hypostomal carina. MSL 1.0 times as long as BWM. OOL 1.0 times as long as POL. Antenna with 20 flagellomeres. F1 short, 0.7–0.8 times as long as F2 (Fig. 1B). Apical part of flagellum slightly wider than basal part (Figs. 5A, B).
Mesosoma largely mat. Epomia present, weak and short. Lateral area of pronotum without striation. Notauli distinct and deep on anterior half of mesoscutum. Scuto-scutellar groove deep, with some longitudinal striae. Scutellum weakly convex. Epicnemial carina distinct, its dorsal end not joined with anterior margin of mesopleuron and subalar prominence. Propodeum with well-developed carinae (Fig. 5C). Propodeal spiracle round. Area superomedia longer than wide (Fig. 5C). Propodeal apophysis well developed (Figs. 5A–C). Fore wing length 5.0 mm. Areolet large, hexagonal, with almost parallel sides. Nervulus based on basal vein (Fig. 5A). Nervellus intercepted anterior to midpoint. Hind femur 4.7–4.9 times as long as maximum depth in lateral view. Hind TS2: TS1, TS3, TS4 and TS5 = 2.0: 3.8–4.0, 1.2–1.5, 0.8 and 2.0–2.1.
Metasoma densely finely punctate except for T1. T1 1.75–1.8 times as long as maximum width, smooth, with a pair of small triangular teeth at base. Median dorsal carina of T1 complete or sometimes narrowly obsolete behind spiracle. Dorsolateral carina of T1 complete. T2 0.7 times as long as maximum width. Ovipositor sheath 0.75–0.8 times as long as hind tibia.Apex of ovipositor as Fig. 3C.
Coloration (Figs. 5A–C). Body (excluding wings and legs) black, except for: labrum reddish brown; palpi whitish yellow; basal part of flagellum slightly tinged with reddish brown; scutellum yellow; posterior margin of T2 and T3 narrowly and slightly tinged with reddish brown; T7 white; ovipositor reddish brown. Wings hyaline, except for: veins and pterostigma blackish brown to black except for yellowish brown wing base. Legs reddish brown, except for: fore tarsus, apex of mid and hind femora, and mid and hind tibiae and tarsi blackish brown; hind trochantellus partly tinged with blackish brown; hind tibial spur yellowish brown; base of T1–T3 narrowly tinged with yellowish brown.
Male. Unknown.
Specimens examined. JAPAN: KPM-NK 69931, F, Kanagawa Pref., Atsugi city, Funako, 18. X. 2002, A. Koyama leg.; KPM-NK 69932, F, Okinawa Pref., Iriomotejima Is., Urauchi (paddy field), 14. V. 2008, K. Watanabe leg. TAIWAN: KU, F (det. Momoi and Yoshida), Tainan Hsien, Yuching, 17. III. 1966, K. Yano & H. Kajita leg.
Distribution. Japan * (Honshu and Iriomotejima Is.); Taiwan *, Indonesia.
Remarks. This is the first record of this species from Japan and Taiwan. This species can be easily distinguished from A. japonicus by the ovipositor sheath 0.75–0.8 times as long as hind tibia (1.0–1.1 times in A. japonicus), the fore and mid coxae reddish brown (Fig. 5A) (black in A. japonicus) and the hind femur largely reddish brown (black in A. japonicus).
description: Published as part of Kyohei Watanabe, 2019, Taxonomic and Zoogeographical Notes of Japanese Cryptinae (Hymenoptera, Ichneumonidae), with Description of Five New Species, pp. 81-113 in Bulletin of the Kanagawa Prefectural Museum (Natural Science) 48 on pages 87-88, DOI: 10.5281/zenodo.11205625