Title: A NEW GENUS AND SPECIES OF TETRANYCHIDAE FROM CHINA AND A KEY TO SUBFAMILIES AND TRIBES (ACARINA: TETRANYCHIDAE)
Abstract:This paper reports a new genus and species and erects a new tribe of Tetranychidae collected from China. The type specimens are kept in Shanghai Agricultural College. Sinobryobiini trib. nov. Sinobryo...This paper reports a new genus and species and erects a new tribe of Tetranychidae collected from China. The type specimens are kept in Shanghai Agricultural College. Sinobryobiini trib. nov. Sinobryobiini n. trib. is similar to the Bryobiini in having uncinate claws and padlike empodium with tenent hairs, but it is distinctive in having two pairs of anal setae and a small terminal sensillum on tarsus of palpus.Sinobryobia gen. nov.Type species: Sinobryobia chinensis sp. nov.Body long. Propodosoma with two prominent lobes over the gnathosoma. Propodosoma with four pairs of dorsal setae, the first of them set on the lebes. Tarsus of palpus with a small terminal sensillum. Hysterosoma with nine pairs of dorsal r-etae, the external sacrales absent. With two pairs of anal setae, one pair of posterior para-anal setae. Anterior para-anal setae. absent. True elaws uncinate. Empodium pad-like, both with tenent hairs. Tarsus Ⅰ with two pairs of duplex setae, tarsus Ⅱ with one pair of duplex setae.Sinobryobia chinensis sp. nov. (figs. 1-Ⅱ)Female: Length of body (including rostrum) 459 μ, width 203 μ, body longoval.Palpus with six setae, terminal sensillum cylinder-like. Peritreme irregularly anastomosing at distal end. Propodosoma with two prominent lobes over the gnathosoma and with four pairs of dorsal setae, the first one set on the lobes. Hysterosoma with nine pairs of dorsal setae, the external sacrals absent. All dorsal setae very small, lanceolate except the second pair of pro-podosomal dorsals and clunals, which are large and fan-like. Opisthosoma with two pairs of anals and a single pair of post-anals, the para-anals absent.True claws uncinate, each with one pair of tenent hairs. Empodium pad-like with six or more pairs of tenent hairs. Setae on segments of leg Ⅰ-Ⅳ numbered as follows: coxae 2,2,1,1; trochanters 1 each; femora 11,7,5,5; genua 6,3,3,3; tibiae 10,5,5,5; tarsi 19,12,10,10.Male: unknown.Holotype (?), paratype (?), Ⅵ. 17, 1980, Gaoan, Jiangxi Province, on weed, collected by Chen Xi-wen.Read More
Publication Year: 1990
Publication Date: 1990-01-01
Language: en
Type: article
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Cited By Count: 2
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