Tetranychus misumaiensis Ehara & Gotoh, 2007, n. sp.
Creators: name: Ehara, Shôzô
name: Gotoh, Tetsuo
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Prostigmata
Tetranychidae
Tetranychus
Tetranychus misumaiensis

description: Tetranychus misumaiensis n. sp.
(Figs. 25–33)
(Japanese name: Misumai-namihadani)
Description. FEMALE. Body reddish. Rostrum reaching distal part of femur I. Palpus (Fig. 25) with spinneret 1.5 to 2.0 times as long as broad; dorsal sensillum (solenidion) fusiform. Peritreme hooked distally (Fig. 27). Dorsal setae on idiosoma much longer than distances between consecutive setae. Opisthosomal striae longitudinal between e1 and f1, forming a diamond-shaped figure between these setae. Genital flap with transverse striae; area immediately anterior to flap with longitudinal striae.
Numbers of setae and solenidia (in parentheses) on leg segments: coxae 2-2-1-1, trochanters 1-1-1-1, femora 10-6-4-4, genua 5-5-4-4, tibiae 9(1)-7-6-7, tarsi 13(1)+ 2 dupl.-13(1)+ 1 dupl.-9(1)-10(1). Tarsus I with 4 tactile setae proximal to proximal set of duplex setae, and 1 solenidion at level of proximal duplex setae (Fig. 30); tarsus II with 3 tactile setae and 1 solenidion proximal to duplex setae (Fig. 31). Empodia with minute mediodorsal spur and 3 pairs of proximoventral hairs.
Measuremenƭs (n=₁Ο﹚∶ Iɵngɭh Οf bΟđy (incIuđing rΟSɭrum﹚ ϭ²₁–ϭ₉⁸﹐ ϭ⁶ɜ﹔ wiđɭh Οf bΟđy ɜ⁶7 – 4Οɜ﹐ ɜ⁸² ﹔ IɵngɭhS Οf Sɵɭaɵ (mɵan SE﹚∶ V² 7⁸•₉ Ο•7﹐ Sc ₁ ₁47 •4 ₁•ϭ﹐ Sc² ₁Οϭ•₁ Ο•₉﹐ c ₁ ₁ɜ ²•₁ ₁•₁﹐ c ² ₁²² •⁶ ₁•ɜ﹐ cɜ ₁₁⁶•7 ₁•Ο﹐ đ₁ ₁²₉•Ο ₁•ɜ﹐ đ² ₁²ϭ•₁ ₁•Ο﹐ ɵ₁ ₁²₁•⁸ ₁•₁﹐ ɵ ² ₁²² •₉ ₁•Ο﹐ f₁ ₁Ο₁•₉ ₁•4﹐ f² ₉₁•Ο ₁•ϭ﹐ h₁ ϭ₁•₁ Ο•7•
MALE. Color similar to female. Palpus (Fig. 26) with spinneret about 2.5 times as long as broad; dorsal sensillum fusiform. Opisthosoma with transverse striae dorsocentrally. Aedeagus (Figs. 28–29) with shaft gently upturned distally to form a stout neck; terminal knob slender, about 2 long, with dorsal margin weakly convex; anterior tip of knob acutely angulate; the posterior projection elongate, tapering; axis of knob subparallel with axis of shaft.
Numbers of setae and solenidia (in parentheses) on leg segments: coxae 2-2-1-1, trochanters 1-1-1-1, femora 10-6-4-4, genua 5-5-4-4, tibiae 9(4)-7-6-7, tarsi 13(3)+ 2 dupl.-13(1)+ 1 dupl.-9(1)-10(1). Tarsus I with 4 tactile setae and 2 solenidia poximal to proximal set of duplex setae, and 1 solenidion at level of proximal duplex setae (Fig. 32); tarsus II with 3 tactile setae and 1 solenidion proximal to duplex setae (Fig. 33). Empodium I with distinct mediodorsal spur and pair of tridigitate proximoventral spurs (Fig. 32). Empodia II–IV with small mediodorsal spur and 3 pairs of proximoventral hairs (Fig. 33).
Measuremenƭs (n=₁Ο﹚∶ Iɵngɭh Οf bΟđy (incIuđing rΟSɭrum﹚ ɜ7₉ –4ɜ⁸﹐ 4Ο² (4ɜϭ﹚﹔ wiđɭh Οf bΟđy ²Ο₁–²²ϭ﹐ ²₁ɜ (-﹚﹔ IɵngɭhS Οf Sɵɭaɵ (mɵan SE﹚∶ V² ϭ⁶•ϭ ₁•Ο (ϭ⁸•Ο﹚﹐ Sc₁ ₁Οɜ•₁ ₁•⁶ (₉₉•Ο﹚﹐ Sc² 7²•ɜ ₁•₉ (7²•Ο﹚﹐ c₁ ⁸⁸•⁶ ²•Ο (⁸₉•Ο﹚﹐ c² ⁸₉•ɜ ₁•₉ (⁸₉•ϭ﹚﹐ cɜ ⁸Ο•⁸ ²•ɜ (⁸4•Ο﹚﹐ đ₁ ⁸7•ϭ ²•² (⁸₉•Ο﹚﹐ đ² ₉Ο•7 ₁•₉ (⁸₉•Ο﹚﹐ ɵ₁ ⁸₁•ϭ ²•4 (7ϭ•4﹚﹐ ɵ² ⁸⁸•² ²•ɜ (₉4•Ο﹚﹐ f₁ ϭ₉•₉ ₁•4 (⁶Ο•Ο﹚﹐ f² ϭ₁•ϭ ₁•² (ϭ²•Ο﹚﹐ h₁ ²₁•² Ο•ϭ (²₁•Ο﹚•
Type series. Holotype male (NSMT-Ac 12453): Misumai, Sapporo, Hokkaido, 23 Sept. 2005 (T. Gotoh leg.), on Apios sp. (Fabaceae). Paratypes: 5 males (NSMT-Ac 12454-12458) & 10 females (NSMT-Ac 12459- 12460), 4 males & 8 females (KUM), data same as for holotype.
Remarks. The new species is assigned to Flechtmann & Knihinicki’s (2002) Group 9 of Tetranychus. The aedeagus of this species resembles that of T. ferrandezi Baker & Pritchard, 1962 from Costa Rica. However, the anterior tip of its terminal knob is acutely angulate, while in ferrandezi the tip is widely rounded (Baker & Pritchard, 1962).
Etymology. This species is named after the type locality, Misumai.
description: Published as part of Ehara, Shôzô & Gotoh, Tetsuo, 2007, Five species of spider mites (Acari: Prostigmata: Tetranychidae) from Japan with descriptions of two new species, pp. 51-58 in Zootaxa 1646 on pages 55-57, DOI: 10.5281/zenodo.179750