Corresponding author: Shunsuke Morishita (
Academic editor: Jose Fernandez-Triana
Japanese species of the genus
The Ichneumonid subfamily
The purpose of this study was to undertake a taxonomic review of the Japanese species of
In this study, the dried specimens deposited in the following collections were examined:
Stereomicroscopes (SMZ745 and SMZ800: Nikon, Tokyo) were used for observation. Photographs (Figs
Morphological terminology mainly follows those established by
In this study, we identified specimens of
On the basis of the aforementioned taxonomic treatments, we conclude that a total of nine species in the genus
According to
Japanese species can be identified by the following key.
1 | Hind coxa white with a brown dorsal stripe in females (Fig. |
|
– | Above combination of character states lacking. Hind coxa entirely black or entirely orange in females (Figs |
2 |
2 | Hind coxa entirely black in both sexes (Figs |
3 |
– | Hind coxa entirely orange in females (Figs |
7 |
3 | Inner orbits divergent downward (Figs |
|
– | Inner orbits almost parallel (Figs |
4 |
4 | Scutellum coarsely and densely punctate (separated by ca. 0.8–1.3 × their diameter) and entirely black (Fig. |
|
– | Scutellum finely and sparsely punctate (separated by ca. 1.5–2.5 × their diameter) and black with a whitish-yellow to yellow apical spot (Figs |
5 |
5 | Face black with a pair of yellow spots along inner orbits (Fig. |
|
– | Face black with a whitish-yellow to yellow median spot (Figs |
6 |
6 | T I 1.4–1.5 × as long as maximum width. Propodeum finely rugulose (Fig. |
|
– | T I 1.1–1.25 × as long as maximum width. Propodeum coriaceous (Fig. |
|
7 | Inner orbits divergent downward. Antenna with 19–21 (rarely 22) flagellomeres. Metasoma entirely black or black with some orange markings in females | |
– | Inner orbits almost parallel in females (Figs |
8 |
8 | Mesoscutum without yellow shoulder marks in females (Fig. |
|
– | Mesoscutum with yellow shoulder marks in females (Fig. |
9 |
9 | Propodeum finely rugulose (e.g., Fig. |
|
– | Propodeum coriaceous (e.g., Figs |
10 |
10 | Bases of T III and T IV each with a transverse yellow basal band in males. T I entirely coriaceous | |
– | T III with a pair of whitish-yellow apical spots (sometimes these spots connected each other). T IV and T V each with a transverse whitish-yellow apical band. T I coriaceous, with irregular rugae laterally |
Female (n = 3). Body length 8.5–9.2 (
Japan (Honshu).
Host unknown. Adults were collected in broad-leaved forest at altitudes of ca. 1,000–2,000 meters.
The species name refers that this species inhabits alpine region.
This species resembles
JAPAN: [Hokkaido] 1 F, Hokkaido, Nemuro, Shibetsu, Rubesu, 25–28 Aug 1971, K. Yamagishi leg. (
Japan (Hokkaido, Honshu, Shikoku, and Kyushu). Outside Japan, this species is widely distributed in Palearctic region (
Host unknown in Japan. Outside of Japan, the following three hoverfly species have been recorded as hosts:
This is the first record of this species from Japan. This species resembles
No specimens available.
Japan (Kunashiri Is.). Outside Japan, this species is widely distributed in Holarctic region (
This species was recorded from Japan by
This species is divided into two subspecies,
Italy: 1 F Sud-tirol, Coltina d’Ampezzo, 29 Jul 1933, E. Bauer leg. (
Body weakly polished. Inner orbits almost parallel in females, weakly divergent downward in males. Antenna with 22–24 flagellomeres in females, 22–25 in males. Propodeum without rugae (Fig.
Japan (Hokkaido, Honshu, Shikoku, and Kyushu). Outside Japan, this species is widely distributed in Holarctic, Oriental, Oceanic, and Neotropical region (
In Japan, one hover fly species,
No additional specimen of this species from Japan was found in this study. Some or all previous records of this species from Japan may be based on misidentification of
Female (n = 14). Body length 4.1–6.0 mm, polished, coriaceous, covered with silver setae.
Japan (Hokkaido and Honshu). Outside Japan, this species has been recorded from Russia and South Korea (
Host unknown.
This is the first record of this species from Honshu.
Female (n = 33). Body length 5.5–8.5 mm, polished, coriaceous. covered with silver setae.
Japan (Hokkaido and Honshu). Outside Japan, this species is widely distributed in the Holarctic and Oriental regions (
Host unknown. Most adults were collected from the treetops of broad‐leaved trees.
This is the first record of this species from Hokkaido.
Female (n = 6). Body length 7.5–10.7 (
Japan (Honshu).
Host unknown. Most adults were collected in broad-leaved forests of mountainous regions. One paratype collected from the Nagano Prefecture was collected by light trap.
The species name refers to the scutellum having coarse punctures.
This species can be easily distinguished from any other species by the entirely black scutellum and the coarse and dense punctures on scutellum (separated by ca. 0.8–1.3 × their diameter).
Japan (Hokkaido and Honshu).
Host unknown. Adults were collected in broad-leaved forests of mountainous regions.
This species resembles
Japanese
Japan (Honshu). Outside Japan, this species has been recorded from South Korea (
Unknown.
This species may be rare in Japan. We could only examine the holotype. No additional specimen of this species from Japan was found.
In the Japanese
The authors wish to express their cordial thanks to David Wahl (