Abe Yoshihisa, Ide Tatsuya, Matsuo Kazunori, Maeto Kaoru, Wu Yajiao
Faculty of Social and Cultural Studies, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan.
Department of Zoology, National Museum of Nature and Science, 4-1-1 Amakubo, Tsukuba, Ibaraki 305-0005, Japan.
Ann Entomol Soc Am. 2023 Mar 27;116(3):154-161. doi: 10.1093/aesa/saad004. eCollection 2023 May.
Abe and Ide sp. nov. (Hymenoptera: Cynipidae) induces galls on (Regel) Nakai (Rosales: Rosaceae), which is endemic to a restricted area of Honshu, the main island of Japan. The gall is induced mainly on the leaf of . in spring and the mature gall falls to the ground in early summer. The gall-inducing wasp emerges from the gall on the ground in the following spring, suggesting that . is univoltine. From spring to summer, the braconid Samartsev and Ku and the eulophid sp. are parasitic on the larva of . in the gall, and the adult wasp of both parasitoid species emerges from the gall on the ground in summer. For . , this is the first distribution record in Japan and the first host record. Since . is threatened with extinction by succession and deforestation, . and its two parasitoid wasp species are considered to be at risk of coextinction with the threatened rose. In the event that the population size of this rose species is further reduced, . and its parasitoids may -become extinct prior to the extinction of . . To conserve these three wasp species associated with . , protection of remnant vegetation where individuals of this threatened rose species grow is necessary.
阿部和井出新种（膜翅目：瘿蜂科）在（ Regel）中井（蔷薇目：蔷薇科）上诱导形成虫瘿，该植物是日本主岛本州一个 restricted area 的特有种。虫瘿主要在春季于的叶片上形成，成熟的虫瘿在初夏落到地面。诱导形成虫瘿的黄蜂在次年春天从地面上的虫瘿中羽化而出，这表明是一年一代。从春季到夏季，茧蜂 Samartsev 和 Ku 以及姬小蜂属的一种寄生在虫瘿中的幼虫上，两种寄生蜂的成虫均在夏季从地面上的虫瘿中羽化而出。对于而言，这是其在日本的首次分布记录和首个寄主记录。由于受到演替和森林砍伐的威胁而濒临灭绝，及其两种寄生蜂物种被认为有与受威胁的蔷薇共同灭绝的风险。如果该蔷薇物种的种群规模进一步缩小，及其寄生蜂可能会在灭绝之前灭绝。为了保护与相关的这三种黄蜂物种，有必要保护这种受威胁蔷薇物种个体生长的残余植被。
