Megastylus (Dicolus) impressor Schiodte 1838
Authors/Creators
- 1. Kanagawa Prefectural Museum of Natural History, 499 Iryuda, Odawara, Kanagawa 250 – 0031, Japan
Description
Megastylus (Dicolus) impressor Schiødte, 1838
[New SJN: Futahida-ashinaga-hae-himebachi]
(Figs. 13A–C, 23F, I, J)
Megastylus impressor Schiødte, 1838: 139.
Dicolus insectator Förster, 1871: 97.
Diagnosis. Inner eye orbit slightly converged ventrally (Fig. 13B). FL I 9.0–11.0 (female) or 12.0 (male) times as long as maximum depth in lateral view. Fore TS I shorter than half length of fore tibia (Fig. 23I). Hind tibia not distinctly narrowed in apical 1/3 (usually slightly narrowed) (Fig. 23J). Propodeum with a distinct transverse depression anterior 0.25–0.28, with both anterior and posterior transverse carinae (Fig. 23F). T I and T II without longitudinal striae. Fore wing length 3.6–5.3 mm. In female: fore TS I 0.33–0.43 length of fore tibia; antennal cleaner of fore TS I not causing conspicuous outcurving of base of TS I. In male: face darkened, except for a narrow yellow area below antennal sockets; pronotum yellow ventrally; mesoscutum darkened; mesopleuron and scutellum reddish brown; hind femur 7.0–8.6 times as long as width in lateral view; T I 2.8–3.3 times as long as maximum width.
Material examined. JAPAN: NARO, M, Hokkaido, Kumaishi, Kenichi-gawa, Iwafuchi-zawa, 21– 29. IX. 1995, Y. Ito & T. Ito leg. (MsT); EUM, F, Hokkaido, Bifue, Kusabue-rindo, 17. VIII. – 1. IX. 2012, N. Kuhara leg. (MsT); KPM-NK 89769, F, Niigata Pref., Nagaoka City, Suyoshi Town, Mt. Nokogiri-yama, 21. VII. – 21. VIII. 2014, S. Shimizu & R. Shimizu leg. (MsT); KPM-NK 89769, F, ditto, 21. VIII. – 22. IX. 2014; KPM-NK 89770, F, Toyama Pref., Toyama City, Arimine, Inonedani, 7–14. VII. 2009, M. Watanabe leg. (MsT); KPM-NK 89771, F, ditto, 14–21. VII. 2009; KPM-NK 89772, F, ditto, 21–28. VII. 2009; KPM-NK 89773, F, Toyama Pref., Toyama City, Arimine, Jyurodani, 16–25. VIII. 2009, M. Watanabe leg. (MsT); KPM-NK 89774, F, Toyama Pref., Toyama City, Kamegai, 1–8. IX. 2009, M. Watanabe leg. (MsT); KPM-NK 89775, F, ditto, 15–26. IX. 2009; KPM-NK 89776, F, Toyama Pref., Toga Vil., Kamimomose, 18–25. Aug. 2009, M. Watanabe leg. (MsT); KPM-NK 89777, 89778, 2 F, ditto, 1–8. IX. 2009; KPM-NK 89779, 89780, 2 F, ditto, 15–29. IX. 2009; KPM-NK 89782, M, Tochigi Pref., Nasushiobara City, Shiobara, Oonuma, 6–15. VI. 2008, T. Matsumura leg. (MsT); KPM-NK 80781, M, Kanagawa Pref., Yamakita Town, Minasegawa, 5. V. 2008, S. Yoshizawa leg.; KPM-NK 89783, M, Yamanashi Pref., Koushu City, Sagashio, 6. VIII. 2008, K. Watanabe leg.; KPM-NK 89785, M, Nagano Pref., Tateshina Town, Ashidahakkano, Mt. Tateshina, 26. VIII. 2011, S. Fujie leg.; KPM-NK 89784, M, Shizuoka Pref., Kawanehoncho, Yamainudan, 14. VI. 2008, K. Watanabe leg.; OMNH, F, Ishikawa Pref., Kaga City, Mt. Kariyasu-yama, 28. VI. – 19. VII. 2002, K. Esaki leg. (MsT); OMNH, M, Kyoto Pref., Miyadu City, Kamiseya, Seyakogen, 10. X. 2015, S. Fujie leg.; NIAES, 2 F & 3 M, Fukuoka Pref., Mt. Hiko, 2–3. XI. 1979, H. Takemoto leg. GERMANY: F (det. Rossem), D, BY, Starnberg, Kerschlach, 27. VII. 1927, Haeselb. leg.
RUSSIA: ZISP, M (det. Rossem), Kobralovo-Semrino, 29. VI. 1980, D. R. Kasparyan leg.
Distribution. Japan (Hokkaido, Honshu, and Kyushu); widely distributed in Holarctic region (Yu et al., 2016).
Remarks. This is the first record of this species from Japan.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Collection code
- EUM , NARO , OMNH , ZISP
- Material sample ID
- KPM-NK 80781 , KPM-NK 89769 , KPM-NK 89770 , KPM-NK 89771 , KPM-NK 89772 , KPM-NK 89773 , KPM-NK 89774 , KPM-NK 89775 , KPM-NK 89776 , KPM-NK 89777, 89778, 2 , KPM-NK 89779, 89780, 2 , KPM-NK 89782 , KPM-NK 89783 , KPM-NK 89784 , KPM-NK 89785
- Event date
- 1927-07-27 , 1979-11-02 , 1980-06-29 , 1995-09-21 , 2002-06-28 , 2008-05-05 , 2008-06-06 , 2008-06-14 , 2008-08-06 , 2009-07-07 , 2009-07-14 , 2009-07-21 , 2009-08-16 , 2009-08-18 , 2009-09-01 , 2009-09-15 , 2011-08-26 , 2012-08-17 , 2014-07-21 , 2014-08-21 , 2015-10-10
- Verbatim event date
- 1927-07-27 , 1979-11-02/03 , 1980-06-29 , 1995-09-21/29 , 2002-06-28/07-19 , 2008-05-05 , 2008-06-06/15 , 2008-06-14 , 2008-08-06 , 2009-07-07/14 , 2009-07-14/21 , 2009-07-21/28 , 2009-08-16/25 , 2009-08-18/25 , 2009-09-01/08 , 2009-09-15/26 , 2009-09-15/29 , 2011-08-26 , 2012-08-17/09-01 , 2014-07-21/08-21 , 2014-08-21/09-22 , 2015-10-10
- Scientific name authorship
- Schiodte
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Order
- Hymenoptera
- Family
- Ichneumonidae
- Genus
- Megastylus
- Species
- impressor
- Taxon rank
- species
- Taxonomic concept label
- Megastylus (Dicolus) impressor Schiodte, 1838 sec. Watanabe, 2023
References
- Schiodte, G., 1838. Ichneumonidarum ad faunam Daniae pertinentium, genera et species novae. Revue Zoologique par la Societe Cuvierienne, 1: 139 - 141.
- Forster, A., 1871. Uebersicht der Gattungen und Arten der Familie der Plectiscoiden. Verhandlungen des Naturhistorischen Vereins der Preussischen Rheinlande und Westfalens, 28: 71 - 123.
- Yu, D. S., K. van Achterberg & K. Horstmann, 2016. World Ichneumonoidea 2015. Taxonomy, biology, morphology and distribution [Database on flash drive]. Taxapad, Vancouver.