Published March 28, 2023 | Version v1
Taxonomic treatment Open

Megastylus (Megastylus) cruentator Schiodte 1838

Authors/Creators

  • 1. Kanagawa Prefectural Museum of Natural History, 499 Iryuda, Odawara, Kanagawa 250 – 0031, Japan

Description

Megastylus (Megastylus) cruentator Schiødte, 1838

[New SJN: Momoboso-ashinaga-hae-himebachi]

(Figs. 15A–F)

Megastylus cruentator Schiødte, 1838: 139.

Megastylus mediator Schiødte, 1838: 139.

Cryptus (Helictes) cruentatus Haliday, 1838: 115.

Megastylus conformis Förster, 1871: 105.

Megastylus fuscicornis Förster, 1871: 105.

Megastylus nigriventris Förster, 1871: 105.

Hemiteles pectoralis Rudow, 1886: 27.

Helictes mediator fulvipes Constantineanu, 1939: 500.

Diagnosis. T I and T II without longitudinal striae. Hind femur 5.9–7.2 (female) or 6.0–8.3 (male) times as long as maximum depth in lateral view. Fore wing length 4.0–7.0 mm. Female: frontal orbit without yellow markings (Fig. 15B); mid femur 5.1–7.0 times as long as maximum depth in lateral view. Male: mesoscutum often with obscure brownish stripes or spots in middle; hind tibia tinged with black in the apical 1/3 (Fig. 15 D); face, clypeus, mandible, palpi, ventral surface of scape and pedicel, malar space, fore and mid coxae, trochanters, propleuron, lower part and hind corner of pronotum, tegula, wing base, and sometimes frontal orbit whitish yellow (Figs. 15D–F).

Material examined. JAPAN: NARO, 4 M, Hokkaido, Sapporo City, Jozankei, 20–31. VII. 1989, K. Maeto & M. Sharkey leg. (MsT); NARO, 1 F & 13 M, ditto, 21–29. VIII. 1989; NARO, 2 F & 27 M, ditto, 29. VIII. – 12. IX. 1989; NARO, 4 F & 4 M, ditto, 12–21. IX. 1989; NARO, 1 F & 4 M, ditto, 21–28. IX. 1989; EUM, F, Hokkaido. Sapporo City, Hitsujigaoka, 11–18. VI. 2003, K. Konishi leg. (MsT); EUM, 1 F & 2 M, Hokkaido, Yuni, Kuobetsu-gawa R., 2–12. VII. 2007, N. Kuhara leg. (MsT); EUM, M, Hokkaido, Sapporo City, Misumai, Kannon-zawa, 10–22. X. 1992, N. Kuhara leg. (MsT); KPM-NK 89805–89807, 3 M, Hokkaido, Yubari City, Oyubari, 31. VIII. – 1. IX. 2007, A. Ueda leg. (MsT); KPM-NK 89808, M, Hokkaido, Sapporo City, Mt. Soranuma-dake, 27. VII. – 21. VIII. 2007, A. Ueda leg. (MsT); KPM-NK 89809, M, Hokkaido, Horokanai Town, Uryu, 11–17. VII. 2012, K. Watanabe et al. leg. (MsT); KPM-NK 89813, Hokkaido, Okushiri Is., Mt. Kamui, T. Nambu leg. (yellow pan trap); NARO, 1 F & 2 M, Hokkaido, Kamishihoro Town, Nukabira, 30. VI. 1980, H. Takemoto leg.; NARO, F, Hokkaido, Horonobe, 25. VII. – 10. VIII. 1993, M. Inoue leg. (MsT); NARO, F, Hokkaido, Ebetsu, Nopporo, 29. VI. – 4. VII. 1992, K. Konishi le. (MsT); NARO, M, Hokkaido, Kimobetsu Town, Nakayama-toge, 15. VII. 1980, K. Maeto leg.; NARO, M, Hokkaido, Akan Town, Akan-kohan, 28–29. VI. 1980, H. Takemoto leg.; NARO, M, Hokkaido, Toyotomi Town, Kabutonuma, 12. VII. 1980, H. Takemoto leg.; NARO, M, Hokkaido, Tomakomai Town, Hokkaido Univ. Exp. Forest, 18–20. VI. 1980, K. Maeto leg.; EUM, M, Hokkaido, Rumoi, 1–15. VII. 2007, Y. Nagayasu leg. (MsT); KPM-NK 89810, M, Niigata Pref., Nagaoka City, Suyoshi Town, Mt. Nokogiri-yama, 7–28. VI. 2014, S. Shimizu & R. Shimizu leg. (MsT); KPM-NK 89811, M, ditto, 28. VI. – 21. VII. 2014; KPM-NK 89812, M, Niigata Pref., Myokou City, Suginosawa, Sasagamine, 17. VIII. 2013, S. Shimizu leg.; NARO, M, Yamanashi Pref., Minami-Alps, Mt. Kitadake, 28. VIII. 1980, T. Goto leg.; NARO, M, Nagano Pref., Shimashimadani, 28. VII. 1980; KPM-NK 89814, M, Toyama Pref., Toyama City, Arimine, Jyurodani, 7–14. VII. 2009, M. Watanabe et al. leg. (MsT). RUSSIA: ZISP, F (det. Rossem), Lazarevskoe, 17. IX. 1975, D. R. Kasparyan leg.

Distribution. Japan (Kunashiri Is., Okushiri Is., Hokkaido, and Honshu); widely distributed in Palaearctic and Oriental regions (Yu et al., 2016).

Remarks. This is the first record of this species from Okushiri Is., Hokkaido, and Honshu.

Notes

Published as part of Watanabe, Kyohei, 2023, Taxonomic and Zoogeographic Notes on Japanese Orthocentrinae (Hymenoptera, Ichneumonidae), with Descriptions of Four New Species, pp. 7-44 in Bulletin of the Kanagawa Prefectural Museum (Natural Science) 52 on pages 29-31, DOI: 10.5281/zenodo.11283244

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Linked records

Additional details

References

  • Schiodte, G., 1838. Ichneumonidarum ad faunam Daniae pertinentium, genera et species novae. Revue Zoologique par la Societe Cuvierienne, 1: 139 - 141.
  • Haliday, A. H., 1838. Descriptions of new British insects, indicated in Mr. Curtis's guide. Annals of Natural History, 2: 112 - 121.
  • Forster, A., 1871. Uebersicht der Gattungen und Arten der Familie der Plectiscoiden. Verhandlungen des Naturhistorischen Vereins der Preussischen Rheinlande und Westfalens, 28: 71 - 123.
  • Rudow, F., 1886. Neue Ichneumoniden. Societas Entomologica, Zurich, 1 (4): 27 - 28.
  • Constantineanu, M. I., 1939. Nouvelles contributions a la faune ichneumonologique de la Roumanie. Sous-familia des Ophioninae Cresson, Tribus: Cremastini, Porizontini et Plectiscini. Annales Scientifiques de l'Universite de Jassy, Section II, 25 (2): 474 - 500.
  • Yu, D. S., K. van Achterberg & K. Horstmann, 2016. World Ichneumonoidea 2015. Taxonomy, biology, morphology and distribution [Database on flash drive]. Taxapad, Vancouver.