Agrilus viduus Kerremans, 1914

Jendek, Eduard & Nakládal, Oto, 2021, Taxonomic, distributional and biological study of the genus Agrilus (Coleoptera Buprestidae). Part III, Zootaxa 4963 (1), pp. 58-90 : 85-86

publication ID 10.11646/zootaxa.4963.1.3

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Agrilus viduus Kerremans, 1914


Agrilus viduus Kerremans, 1914 View in CoL ( Figs. 1A–1C View FIGURES 1 )

Examined specimens. CHINA. Beijing: Haidian district ; 40°02’N, 116°12’E; 6-2008; Larval host: Ulmus pumila L.; 1 ( EJCB) GoogleMaps // Mengtugou district, Jiulong Mts. ; 39°57’N, 116°03’E; 7-2018; Larval host: Celtis occidentalis L.; 2 ( EJCB) GoogleMaps . Hebei: Chengde, Shuangqiao District ; 40°47‘N, 117°57‘E; 6-2018; Larval host: Ulmus pumila L.; 2 ( EJCB) GoogleMaps ; 7-2018; Larval host: Gleditsia sinensis Lam.; 2 ( EJCB) . Jilin: 40 km SE Jilin city, Dashi , 350 m; 43°33’46”N, 126°51’E; 6-2019; alt. 350 m; Larval host: Lespedeza bicolor Turcz. ; 3 ♂, 1 ♀ ( EJCB) GoogleMaps // 40 km SE Jilin city, Dashi , 350 m; 43°33’46”N, 126°51’E; 6-2019; alt. 350 m; 2 ( EJCB) GoogleMaps . Xinjiang: Gongliu County; 43°26’N, 082°07’E; 2019; Larval host: Prunus armeniaca L.; 2 ( EJCB) GoogleMaps // Huocheng County, Qingshuihe township ; 44°11’N, 080°44’E; 8-2019; Adult host: Malus domestica Borkh. ; 2 ( EJCB) GoogleMaps .

Host plant cited. Adult: Malus domestica Borkh. Larval : Ulmus pumila L., Celtis occidentalis L., Gleditsia sinensis Lam., Lespedeza bicolor Turcz. , Prunus armeniaca L. All faunal and host records cited here, exept for the Lespedeza bicolor from Jilin, were provided for identification by Prof. Xiao-Yi Wang, Chinese Academy of Forestry, Beijing, China.

Biological notes. Agrilus viduus was reared quite surprisingly from Lespedeza bicolor, Leguminosae (see above) which is known as larval host of A. pekinensis Obenberger, 1924 . Larva bores in living or dying back twigs 1–3 cm in diameter ( Fig. 1B View FIGURES 1 ). Larval galleries run under the bark or deeper in the wood. The pupation takes place in the core part of twig ( Fig. 1C View FIGURES 1 ). Old galleries and exit holes are visible on dead plants ( Fig. 1A View FIGURES 1 ).













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