Apethymus kunugi Togashi, 2005

Fu, Yuanzun, Yuan, Yuan, Shen, Qian, Xu, Hao, Ye, Zheng, Guo, Li, Wu, Xiaoliang & Zhao, Yunhe, 2021, Taxonomic Notes and New Distribution and Host Plant Records for Sawflies and Woodwasps (Hymenoptera, Symphyta) of Japan VI, Bulletin of the National Museum of Nature and Science. Series A, Zoology 47 (4), pp. 163-188 : 168

publication ID

https://doi.org/ 10.50826/bnmnszool.47.4_163

persistent identifier

https://treatment.plazi.org/id/03FA87F1-FF8A-D90C-FF28-0E57FCB3FB5E

treatment provided by

Felipe

scientific name

Apethymus kunugi Togashi, 2005
status

 

Apethymus kunugi Togashi, 2005

New Japanese name: Kunugi-habachi ( Figs. 1D View Fig , 2K–M View Fig )

Material examined. HONSHU: Tochigi Pref.:

1˂ ( Fig. 1D View Fig ), Koisago, 36°46′N 140°08′E, Nakagawa, coll. larva ( Fig. 2K–L View Fig ), on Quercus serrata , 10. V. 2019, mat. 17. V. ( Fig. 2M View Fig ), em. 18. X. 2019, S. Ibuki GoogleMaps .

Larva. Late instar ( Fig. 2K–L View Fig ): head dark opaque gray; trunk and legs creamy white, dorsal region dark gray with creamy white line along middorsal line and each thoracic and abdominal segment with blackish spot in laterodorsal region. Mature larva ( Fig. 2M View Fig ): head pale orange; trunk and legs yellowish white, dorsal region dark gray, each segment with blackish spot in laterodorsal region.

Host plants. Fagaceae : Quercus acutissima Carruth. ( Togashi, 2005), Q. serrata Murray (new record).

Life history. This is a univoltine species with the adult emergence in autumn, hibernation in the egg stage, and the larval feeding stages in spring. The larva is a solitary external feeder of the host leaves ( Fig. 2 L View Fig ). On maturity, the reared larva had an extra molt ( Fig. 2M View Fig ) and went into the soil.

Remarks. Togashi (2005) described this species from the holotype which was reared from a larva feeding on Q. acutissima ( Togashi, 2005) , but he did not give any further information about the larva and life history. Here we newly record Q. serrata as a host of A. kunugi . Other species of Quercus may also serve as the host of this sawfly.

V

Royal British Columbia Museum - Herbarium

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Tenthredinidae

Genus

Apethymus

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