Perineura okutanii Takeuchi, 1959

Kumar, Deepthi S & Sankar, Manimuthu M, 2023, Taxonomic Notes and New Distribution and Host Plant Records for Sawflies and Woodwasps (Hymenoptera, Symphyta) of Japan VIII, Bulletin of the National Museum of Nature and Science. Series A, Zoology 49 (2), pp. 57-74 : 69

publication ID

https://doi.org/ 10.50826/bnmnszool.49.2_57

DOI

https://doi.org/10.5281/zenodo.13826636

persistent identifier

https://treatment.plazi.org/id/37193B62-0F06-FFB3-FF1E-FCB79963FB63

treatment provided by

Felipe

scientific name

Perineura okutanii Takeuchi, 1959
status

 

Perineura okutanii Takeuchi, 1959

Japanese name: Ajisai-habachi

( Fig. 10 View Fig )

Larva. Late instar ( Fig. 10A–B View Fig ): Head pale olive, with large black spot around stemmatum; trunk pale greenish, with sparse minute whitish tubercles dorsally.

Material examined. HONSHU: Tochigi Pref.: 2 $ ( Fig. 10C View Fig ), Nakagawa, Oyamada, coll. larvae on Hydrangea macrophylla f. macrophylla , 31. V. 2016, mat. 5. VI., em. 11. IV. 2017, S. Ibuki.

Host plants. Hydrangeaceae : Hydrangea hortensia (= Hydrangea macrophylla (Thunb.) Ser. f. hortensia (Lam.) Rehder ) ( Takeuchi, 1949); Hydrangea macrophylla Seringe (= Hydrangea macrophylla (Thunb.) Ser. f. normalis (E.H.Wilson) H.Hara) ( Okutani, 1967); Hydrangea macrophylla (Thunb.) Ser. f. macrophylla (new record). Takeuchi (1959) noted lLarva feeds on Hydrangea spp. z.

Life history. Ibuki found two late instar larvae solitarily feeding on Hydrangea macrophylla f. macrophylla on May 31, 2016, in Nakagawa, Tochigi Prefecture. The larvae were not coiled at rest. They matured on June 5 and entered the soil. Two female adults emerged on April 11, 2017. This species is regarded as univoltine.

Remarks. As suggested by Takeuchi (1959), this species is thought to be the sawfly long known in Japan as lAjisai-habachiz (=hydrangea sawfly) ( Sasaki, 1923), a pest of hydrangea. Sasaki (1923) gave concise notes on the morphology, life history and damage of this species. His description of the late-instar (lmaturez) larva differs from the larva shown in Fig. 10A–B View Fig in the head coloration. According to Sasaki (1923), the head of the larva is black, whereas the head is pale olive in our material. We need more information to confirm if this difference is within a variation range of the species.

V

Royal British Columbia Museum - Herbarium

VI

Mykotektet, National Veterinary Institute

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Tenthredinidae

Genus

Perineura

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