摘要
木文记述微绒螨亚科一新属新种,正模♀,副模2♀♀采自上海土表杂质,保存于上海复旦大学生物系。
Microtrombidiinae Thor, 1935 is the largest subfamily in Trombidiidae. It consists of more than 50 genera, at least 300 species (Robaux, 1967). Womersley, Thor and Willmann, and Fe-ider revised Microtrombidiinae In 1945, 1947 and 1952 respectively. The structure and size of dorsal setae were generally used in classifying Microtrombidiinae before Feider, but Feider (1952) added the structure of palpal tibia in classification. Andre (1958) and Robaux (1967) adopted Womersley’s (1945) and Thor and Willmann’s (1947) classifications, referring to Feider’s (1952) classification at the same time. The present paper described a new genus and a new species of Microtrombidiinae from China. The new genu is similar to Valgothrombium Willmann, 1940 but can be easily distinguished from the latter by its structures of dorsal setae and palpal tibia and tarsus.Falsivalgothrombium gen. nov. (figs. 1-7)Microtrombidiinae characterized by: Dorsal seta bifid at one third of its length from base, with barbs on all its length. Dorsal side of propodosoma with a rhombic plate, on which situated crista metopica and two pairs of non-pedunculate eyes. Crista metopica prolanged anteriorly, with a triangular naso anterior to its tip. At the posterior part of crista metopica is a rectangular sensillary area. Eyes very near to crista metopica. Palpal tarsus long, extending beyond the end of tibia claw. Dorso-internal side of palpal tibia with a comb, consisting of 5-7 short, thick spines.Type species: Falsivalgothrombium longitarsis sp. nov.Falsivalgothrombium longitarsis sp. nov. (figs. 1-7) Female: Idiosoma length 1650-1700 μm, width 1100-1200 μm. Dorsal side covered with a kind of setae bifid at one third of its length from base, with barbs on all its length. Dorsal setae 20-30 μm long. Dorsal side of propodosoma with a rhombic plate, on which situated crista metopica and two pairs of non-pedunculate eyes. Anterior pan of crista metopica longer than posterior part, but much weakly sclerotized. Sensillary area rectangular, with a pair
出处
《动物分类学报》
CSCD
1989年第1期33-36,共4页
Acta Zootaxonomica Sinica
关键词
伪弯腿绒螨属
新属
新种
Acari Trombidiidae Falsivalgothrombium gen. nov. new species
