Shevtchenkella acer Wei &amp; Wang &amp; Qin 2009, sp. nov.
Creators: name: Wei, Suigai
name: Wang, Guoquan
name: Qin, Aizhi
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Eriophyidae
Shevtchenkella
Shevtchenkella acer

description: <i>Shevtchenkella acer</i> sp. nov. (Fig. 3) <b>Description. Female</b> (n=16). body flat, yellowish, 135 (117−148), 77 (70−86) wide, 20 (19−21) thick. <b>Gnathosoma—</b> Curved obliquely downward, 15 (14−16); dorsal pedipalp genual setae (<i>d</i>) 5 (5−6), pedipalp coxal setae (<i>ep</i>) 2 (2−3), cheliceral stylets 14 (13−14). <b>Prodorsal shield—</b> Frontal lobe present, 50 (48−55), 75 (70−81) wide, rear median shield with a semicircle projection overlapping 1st dorsal annulus; median and submedian lines absent, admedian lines complete, longitudinal lines present between the admedian lines. Scapular tubercles placed on rear shield margin, 24 (22−27) apart, scapular setae (<i>sc</i>) 4 (3−4), directed backward. <b>Coxae—</b> Sternal line present, coxal area sculptured with lines; anterolateral setae on coxisternum &amp;Iukcy; (<i>1b</i>) 6 (6−7), 13 (12−14) apart; proximal setae on coxisternum &amp;Iukcy; (<i>1a</i>) 11 (10−13), 8 (8−9) apart; proximal setae on coxisternum &amp;Iukcy; (<i>2a</i>) 19 (17−22), 26 (25−27) apart. Coxi-genital annuli 6. <b>Legs—</b> Segments normal. Legs &amp;Iukcy; 23 (21−25), femur 8 (7−8), basiventral femoral setae (<i>bv</i>) 8 (7−9); genu 3 (3−4), antaxial genual setae (<i>l''</i>) 15 (13−17); tibia 6 (6−7), paraxial tibial setae (<i>l</i> ΄) located centrad, 8 (7−8); tarsus 4 (3−4), paraxial fastigial tarsal setae (<i>ft'</i>) 20 (18−22), antaxial fastigial tarsal setae (<i>ft''</i>) 20 (18−23), paraxial unguinal tarsal setae (<i>u'</i>) 4 (4−5); tarsal empodium 5 (5−6), 4-rayed, tarsal solenidion 6 (6−7), knobbed. Legs &amp;Iukcy; 20 (18−22), femur 7 (7−8), basiventral femoral setae (<i>bv</i>) 15 (13−17); genu 3 (3−4), antaxial genual setae (<i>l''</i>) 5 (5−6); tibia 4 (3−4); tarsus 4 (3−4), paraxial fastigial tarsal setae (<i>ft'</i>) 5 (5−6), antaxial fastigial tarsal setae (<i>ft''</i>) 20 (18−23), paraxial unguinal tarsal setae (<i>u'</i>) 4 (4−5); tarsal empodium 6 (5−6), 4-rayed, tarsal solenidion 6 (5−6), knobbed. <b>Opisthosoma—</b> Dorsal annuli 21, smooth, with spine-like projections; ventral annuli 67, with rounded microtubercles; setae <i>c2</i> 22 (20−24), on ventral annulus 11th; setae <i>d</i> 32 (30−34), 38 (37−39) apart, on 25th ventral annulus; setae <i>e</i> 15 (13−17), 15 (14−16) apart, on ventral annulus 43th; setae <i>f</i> 20 (19−22), 16 (15−16) apart, on 7th ventral annulus from rear; setae <i>h1</i> 2 (2−3), setae <i>h2</i> 38 (33−42). <b>Female genitalia—</b> Coverflap sculptured with 17 basal longitudinal ridges and distal longitudinal ridges, 17 (16−18), 27 (26−28) wide, proximal setae on coxisternum &amp;Iukcy;&amp;Iukcy; (<i>3a</i>) 7 (7−8), 16 (16−17) apart. <b>Male.</b> Not seen. <b>Type data.</b> Holotype, female, Lizhou town, 24 km NE of Tianlin County (24°31'N, 106°24'E), Guangxi Zhuang Autonomous Region, China, 4- Aug. -2005, China, from <i>Acer davidii</i> Franch. (Aceraceae), collected by SuiGai Wei, GuoQuan Wang and DeWei Li. Paratypes, 15 females, were mounted on individual slide, with the same data as holotype. <b>Relation to host.</b> The mites are vagrant on the undersurfaces of the leaves, no visible damage seen. <b>Etymology.</b> The specific designation is derived from the generic name of the type host plant. <b>Remarks.</b> This new species occurred with <i>Rhyncaphytoptus acer</i> Chen, Wei &amp; Qin, 2004. The new species is similar to <i>Shevtchenkella osmantha</i> Huang &amp; Wang, 2004, but they can be easily separated as follows: in <i>S. acer</i>, the prodorsal shield has longitudinal lines between the admedian lines, the submedian lines are absent, the coxae have lines and the empodium is 4-rayed; in <i>S. osmantha</i>, the area between the admedian lines is smooth, the submedian lines are incomplete, the coxae have granules and the empodium is 3-rayed (Huang &amp; Wang 2004).
description: Published as part of <i>Wei, Suigai, Wang, Guoquan &amp; Qin, Aizhi, 2009, One new genus and four new species of Tegonotini (Acari: Eriophyidae) from Guangxi, South China, pp. 60-68 in Zootaxa 2312</i> on pages 65-66
description: {"references": ["Huang, K. - W. &amp; Wang, C. - F. (2004) Eriophyoid mites of Taiwan: V. Description of four new species of Tribe Tegonotini from Hueysuen (Acari: Eriophyidae: Phyllocoptinae). International Journal of Acarology, 30 (4), 335 - 341."]}