Stethynium empoascae Subba Rao (Hymenoptera: Mymaridae), a newly recorded egg parasitoid of Amrasca biguttula (Ishida) (Hemiptera: Cicadellidae), a pest of okra on Ogasawara (Bonin) Islands, Japan

• Published in: Journal of Asia-Pacific entomology Vol. 28; no. 1; pp. 102379 - 4
• Main Authors: Adachi-Hagimori, Tetsuya, Triapitsyn, Serguei V., Endou, Takuya
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.03.2025; 한국응용곤충학회
• Subjects: Abelmoschus esculentus; Amrasca biguttula; Biological control; Chalcidoidea; eggs; entomology; Fairyfly; Japan; Mymaridae; Natural enemy; okra; Okra leafhopper; parasitoids; species; 농학; Fairyfly; Natural enemy; Chalcidoidea; Biological control; Okra leafhopper
• ISSN: 1226-8615; 1876-7790
• DOI: 10.1016/j.aspen.2025.102379

(From left to right) Amrasca biguttula adult (Chichijima Island, Ogasawara Islands, Japan); Stethynium empoascae female; and S. empoascae male. Photographs by Serguei V. Triapitsyn. [Display omitted] •The okra leafhopper Amrasca biguttula is a pest of okra, eggplant, and hibiscus in Japan.•Stethynium empoascae was reared from A. biguttula eggs on Chichijima, Ogasawara Islands, Japan.•Anagrus japonicus and Arescon enocki could be candidate agents for a biological control project on Ogasawara Islands. The okra leafhopper, Amrasca (Sundapteryx) biguttula (Ishida) (Hemiptera: Cicadellidae), is an economically important pest of okra, Abelmoschus esculentus (L.) Moench (Malvaceae), in southern Japan including Chichijima and Hahajima, Ogasawara (Bonin) Islands. Parasitoids of A. biguttula in the Ogasawara Islands revealed that only one species, Stethynium empoascae Subba Rao (Hymenoptera: Mymaridae), parasitizes its eggs there. A possibility of a biological control program against the okra leafhopper on Ogasawara Islands by introducing its other known egg parasitoids from southern Japan is discussed.