Woolastookia elongata ( Sokolow, 1934 )

Semenchenko, K. A., 2010, Towards The Systematics Of The Water Mite Woolastokia Elongata (Sokolow, 1934) (Acariformes: Aturidae, Acarologia 50 (4), pp. 431-437 : 432-435

publication ID

https://doi.org/ 10.1051/acarologia/20101987

persistent identifier

https://treatment.plazi.org/id/03F5E909-F112-FFE6-FF02-FECAFA2A0CC8

treatment provided by

Marcus

scientific name

Woolastookia elongata ( Sokolow, 1934 )
status

 

Woolastookia elongata ( Sokolow, 1934)

( Figures 1 – 3 View FIGURE View FIGURE View FIGURE )

Axonopsis elongata Sokolow, 1934: 371 , figures 79- 81; Sokolow, 1940: 406, figures 216 a-c.

Woolastookia elongata ( Sokolow, 1934) ; Cook, 1974: 342; Semenchenko, 2006: 238.

Woolastookia spatulata Kim and Chung, 1996: 154 , figure 11. syn. nov.

Material. Russia, Primory Kray: 1 female, Khasansky District, "Kedrovaya Pad National Nature Biosphere Reserve", the Kedrovaya River , N 43°06.056’; E 131°33.310’, 25 Nov. 1993 GoogleMaps , leg. T. M. Tiunova; 1 female, Terneysky District, the Serebryanka River, near Artemovo , N 45º06.624’; E 136º31.837’, 24 Sept. 2008, leg. K.A. Semenchenko, D.A. Sidorov GoogleMaps ; 1 male, 2 females, Anuchinsky District, 10 km from Vinogradovka, the Arsenyevka River , N 43º48.261’; E 132º56.407’, 13 Sept. 2008, leg. K.A. Semenchenko, D.A. Sidorov GoogleMaps ; 1 male, 2 deutonymphs, Anuchinsky District, the Arsenyevka River, near Stogovaya hill, N 43º40.315’; E 133º00.937’, 15 Sept. 2008, leg. K.A. Semenchenko, D.A. Sidorov GoogleMaps ; Russia, Sakhalin Province: 11 males, 12 females, Dolinsky District, unnamed spring, the Izvitaya River basin, N 47º17.365’; E 143º53.069’, 27 Sept. 2008, leg. K.A. Semenchenko. Paratypes GoogleMaps of Woolastookia spatulata – South Korea: 1 male, 1 female, spring on the Ullung Island , N 37°3’; E 130°5’, 20 Sept. 1995, leg. I.H. Kim, K.S. Chung. GoogleMaps

Description

Deutonymph. Dorsal shield with cellular structure, occupying major portion of dorsum and situated on other shield, submerged under cuticle and having granular structure ( Figure 1 View FIGURE , a). Setae Oi placed on main shield, setae Oe, Hi, Sci, Li and Si on shield, submerged under cuticle. Setae Fch longer and thicker than other dorsal setae. Coxae of legs incorporated into two groups and lying on ventral shields ( Figure 1 View FIGURE , b). Medial portions of coxae of legs II-IV fused to each other.

Setae Ve lying free on soft integument on the level of coxae II. Setae Hv situated near medial end of suture between coxae I and II. Setae Pi without glandularia and situated anterior to anal plate, setae Pe on posterior margin of coxae IV. Anal plate tapered. Two pairs of genital acetabula lying on two genital plates, each plate with three setae.

Trochanter of pedipalp without setae ( Figure 1 View FIGURE , c). Pedipalpal femur without ventrodistal tuber, bearing 1 dorsomedial and 2 dorsodistal setae. Ventral margin of pedipalpal genu concave. Tibia with subequal height along segment, bearing 2 thin ventromedial setae and 1 stout distolateral spine.

Tibia of legs I with 1, tibia of legs III-IV with 2 long swimming setae ( Figure 1 View FIGURE , d). Claws with well developed plate and three clawlets, medial clawlet longer than interior and exterior ones. Ventral margin of claw blade slightly concave.

Measurements (n=2). Length of body 323-336, width 282-297; length of dorsal shield 252-275, width 177-194; length of pedipalpal segments (P- 1-5): 24-27, 32-35, 22-24, 54-55, 15-16; length of leg segments: I-L-1-6 - 24-26, 29-32, 29-32, 30-43, 52-54, 59-62; II-L-1-6 - 24-25, 31-32, 30-35, 40-46, 51-57, 50- 65; III-L-1-6 24-27, 30-35, 35-40, 43-54, 56-70, 62-67; IV-L-1-6 - 36-38, 42-43, 42-43, 52-55, 63-65, 65-67.

Male. Body elongated ( Figure 2 View FIGURE , a). Its posterior margin with small depression. Dorsal shield with eight pairs of setae: Fp, Vi, Oi, Oe, Hi, Sci, Li and Si. Setae Se placed on elongated sclerits, situated laterally of posterior part of dorsal shield. First pair of lyriform organs (i 1) placed on dorsal shield, three pairs of lyriform organs (i 2 -i 4) lying free on soft integument along lateral edges of dorsal shield, i 5 on small platelets behind genital field. Medial portions of coxae of legs II-IV fused to each other ( Figure 2 View FIGURE , b). Longitudinal crest located between place of insertion of leg IV and genital field. Genital field with 3 pairs of acetabula. Margins of genital opening with great number of short setae.

Trochanter of pedipalp long, curved medially, with single dorsomedial seta ( Figure 2 View FIGURE , c). Pedipalpal femur with straight ventral and convex dorsal margin, bearing 5 setae. Genu with 1 short dorsomedial seta and 2 long dorsodistal setae. Tibia long with subequal height along segment, bearing

Acarologia 50(4): 431–437 (2010)

2 thin long ventromedial setae and 1 stout distolateral spine.

Tibia of legs II with 3 swimming setae. Legs III longer than other pairs of leg, their tibia with 4 swimming setae ( Figure 2 View FIGURE , d). Legs IV thickened, bearing 3 swimming setae on tibia and plenty of stout setae on tarsus ( Figure 2 View FIGURE , e-f). Claws of legs I-III with 3 clawlets, medial clawlet longer than interior and exterior ones. Claws of legs IV larger than that of other pairs of legs, strongly curved, with 1 short interior and 1 long exterior clawlets.

Measurements (n=3). Length of body 488-521, width 363-396; length of dorsal shield 485-515, width 303-336; length of pedipalpal segments (P-1- 5): 35-36, 46-48, 29-32, 78-81, 24-26; length of leg segments: I-L-1-6 - 35-40, 38-40, 54-57, 73-75, 86-92, 92- 94; II-L-1-6 - 40-43, 50-54, 57-62, 76-81, 94-96, 92-94; III-L-1-6 40-43, 70-78, 73-76, 94-95, 113-121, 110-113; IV-L-1-6 - 54-67, 58-60, 73-77, 86-94, 108-116, 97-99.

Female. Position of setae on dorsal shield similar to that of male ( Figure 3 View FIGURE , a). Anal opening situated behind dorsal shield. Structure of legs coxae similar to that of male ( Figure 3 View FIGURE , b). In contrast to male no longitudinal crest located between place of insertion of leg IV and genital field. Genital plates triangular, each with 3 acetabula, occupying about half of its surface, and 4-5 short thin setae. Leg IV unmodified, bearing claws with 3 clawlets.

Measurements (n=3). Length of body 548-587, width 396-422; length of dorsal shield 554-568, width 343-363; length of pedipalpal segments (P- 1-5): 35-40, 50-54, 31-33, 81-83, 24-25; length of leg segments: I-L-1-6 - 37-40, 43-51, 34-49, 70-73, 78-84, 78-81; II-L-1-6 - 43-45, 43-57, 51-54, 67-76, 86-87, 83- 86; III-L-1-6 43-47, 62-73, 67-70, 83-86, 100-108, 84- 94; IV-L-1-6 - 67-70, 68-72, 67-70, 84-86, 97-99, 92-94.

T

Tavera, Department of Geology and Geophysics

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Trombidiformes

Family

Aturidae

Genus

Woolastookia

Loc

Woolastookia elongata ( Sokolow, 1934 )

Semenchenko, K. A. 2010
2010
Loc

Woolastookia spatulata

Kim I. H. & Chung K. S. 1996: 154
1996
Loc

Woolastookia elongata ( Sokolow, 1934 )

Semenchenko K. A. 2006: 238
Cook D. R. 1974: 342
1974
Loc

Axonopsis elongata

Sokolow I. I. 1940: 406
Sokolow I. I. 1934: 371
1934
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