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Issue: Vol. 5324 No. 1: 4 Aug. 2023
Type: Article
Published: 2023-08-04
DOI: 10.11646/zootaxa.5324.1.13
Page range: 185-226
Abstract views: 205
PDF downloaded: 18

Redescription of three species of Aponychus from China with ontogenetic development and morphological variations of A. corpuzae (Acariformes: Tetranychidae)

Institute of Entomology; Guizhou University; Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region; Scientific Observing and Experimental Station of Crop Pest in Guiyang; Ministry of Agricultural and Rural Affairs; P. R. China; Guiyang 550025; P. R. China
Institute of Entomology; Guizhou University; Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region; Scientific Observing and Experimental Station of Crop Pest in Guiyang; Ministry of Agricultural and Rural Affairs; P. R. China; Guiyang 550025; P. R. China
Institute of Entomology; Guizhou University; Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region; Scientific Observing and Experimental Station of Crop Pest in Guiyang; Ministry of Agricultural and Rural Affairs; P. R. China; Guiyang 550025; P. R. China
Acari Aponychus Aponychini ontogeny chaetotaxy variation China

Abstract

Ontogenetic development of leg chaetotaxy, stylophore and striae of the dorsal integument, and variations of leg setal counts and length of idiosomal setae in Aponychus corpuzae are discussed. The following changes were observed during the ontogenetic development of A. corpuzae: the depth of the depression in stylophore increases; the dorsal striae gradually reduce in number and prominence; the length of dorsal setae sc1, c1–2, d1–2 and e1 reduce in size; adult dorsal setae much thicker than those of immature stages. There are a significant number of setae suppressed in A. corpuzae, often resulting in unique patterns and sexual dimorphism. The adult males and females of Aponychus firmianae and A. taishanicus from mainland China are redecribed, and a key to all Aponychus from mainland China is provided.

 

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