Atractides fluviatilis ( Szalay, 1929 )
publication ID |
https://doi.org/ 10.5281/zenodo.157855 |
DOI |
https://doi.org/10.5281/zenodo.5689554 |
persistent identifier |
https://treatment.plazi.org/id/03FB7D20-DD6F-FF8A-FEAF-FD304B39032C |
treatment provided by |
Plazi |
scientific name |
Atractides fluviatilis ( Szalay, 1929 ) |
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Atractides fluviatilis ( Szalay, 1929)
(Figs. 50–58)
New records: Iran: IR30 Chahar Mahal and Bakhtiari Province, Omid Abad stream near Eisa Abad (After Farsan to Kuhrang, ca. 32°18'N, 50°29'E), 2077 m asl., 0 1.08.2003, leg. Pesic (1/0/0).
Compared material: Serbia and Montenegro: Montenegro: CG31 Podgorica reg., river Cijevna near village Dinosa, 0 1.07.2000, leg. Pesic (1/1/0); Serbia: SR22 river Pschinja near Monastir Sv. Prohor Pschinjski (SerbianMacedonian border), 0 5.05.2002, leg. Pesic (4[1ɗ in coll. Gerecke]/2/0); Macedonia: MA115 the river (probably the Pschinja River) near Kumanovo, 0 2.08.1960, ex coll. Petkovski (0/6/0).
Diagnosis: dorsal integument: lineated; muscle attachments: unsclerotized. IL: IL5 S1and 2 distanced; IL6 curved, with maximum height proximally. Genital field: Ac small, in a curved line, anterior margin with indentation; excretory pore: smooth; Vgl1: not fused to Vgl2. Palp: weak sexual dimorphism, sword seta inserted halfway between ventral hairs.
Description
Male from Omid Abad stream, in brackets measurements of specimen from from Cijevna river): Length of idiosoma 494 (480), width 386 (335). Dorsally the integument is lineated. Coxal field (Fig. 50): mediocaudal margin of Cx1+2 indented between the laterally directed apodemes of Cx2; length between anterior end of first coxae and posterior end of fourth coxae 338 (336); Cx3 width 411 (387), Cx1+2 width 335 (308); Cx1+2 medial suture 111.5 (108) in length; distance from lateralmost tips of Cx2 to the medioposterior edge of Cx1+2 227 (204). Measurements of mouthparts: chelicera 188.5 long, claw 58 long; palp total length 305.5 (280), dorsal length of single segments: P1 31 (32), P2 71 (64), P3 69 (64), P4 98 (92), P5 36.5 (29); relative length (% total length) of single segments: 10.1 (11.5), P2 23.2 (22.6), P3 22.6 (22.6), P4 32.1 (32.9), P5 11.9 (10.4); ratio length P2/P4 0.72 (0.69); palp (Fig. 51): P4 ventral margin convex, sword seta strong and curved, inserted halfway between ventral hairs. Genital field (Fig. 53): appleshaped, anterior and posterior margins with shallow indentations; 110 (117) in length, 110 (119) in width, Ac13 length 32.7 (38)33 (38)25 (43); excretory pore smooth; Vgl1: separated from Vgl2.
IL (Fig. 52): S1/2 distanced and rather slender, IL6 basally and distally slightly thickened, curved; IL5 dorsal length 188 (187), IL5 ventral length 119 (115), ratio dorsal length IL5 /ventral length 1.58 (1.62), IL5 central height 59 (52), ratio dorsal length IL5/central height 3.2 (3.59), S1 length 90 (87), ratio length S1/width 10.1 (11.2), S2 length 77 (72), ratio length S2/ width 6.63 (6.27), distance between sword setae of IL5 20.5 (19); ratio length S1/2 1.17 (1.2); IL6 length 137 (135), IL6 central height 22 (19), ratio length IL6 /central height 6.2 (7.0); ratio length IL5/6 1.37 (1.38).
Female (from Cijevna River, in brackets measurements of specimen from Macedonia): Length of idiosoma 850. Dorsally the integument is lineated. Coxal field ( Fig. 55 View FIGURES 55 – 58 ): length between anterior end of first coxae and posterior end of fourth coxae 425; Cx3 width 577, Cx1+2 width 354; Cx1+2 medial suture 96 (99) in length; distance from lateralmost tips of Cx2 to the medioposterior edge of Cx2+3 237 (233). Measurements of mouthparts: palp total length 366 (364), dorsal length (in m) of single segments: P1 39 (35), P2 83 (77), P3 94 (98), P4 111 (115), P5 40 (39); relative length (% total length) of single segments: P1 10.5 (9.6), P2 22.6 (21.1), P3 25.7 (26.9), P4 30 (31.6), P5 11 (10.7); length ratio P2/P4 is 0.75 (0.67); palp ( Fig. 58 View FIGURES 55 – 58 ): P2 ventral margin slightly convex distally, P3 ventral margin straight. Genital field ( Fig. 56 View FIGURES 55 – 58 ): 206 (185) in width, Ac 1 3 52 (35)43 (37)56 (41); excretory pore smooth; Vgl1 separate from Vgl2.
IL5 ( Fig. 57 View FIGURES 55 – 58 ) dorsal length 237 (245), IL5 ventral length 142 (153), ratio dorsal length IL5 /ventral length 1.66 (1.6), IL5 central height 67 (62), ratio dorsal length IL 5/central height 3.5 (3.98), S1 length 115 (114), ratio length S1/ width 12.0 (11.8), S2 length 90 (87), ratio length S2/width 5.2 (5.3), distance of sword setae of IL5 39 (38); length ratio S1/2 1.28 (1.31); IL6 length 167 (171), IL6 central height 17 (17), ratio length 1.28 (1.31); IL6 length 167 (171), IL6 central height 17 (17), ratio length IL6 / central height 9.67 (9.89); length ratio IL5/6 1.41 (1.43).
Remarks: Gerecke (2003) give the redescription of Atractides fluviatilis ( Szalay, 1929) based on the specimens (SMF 4974 1ɗ, 2Ψ) from Croatia and from Israel (SMF KOViets 7071 Ψ, 7072 ɗ Israel IES 1375). According to Gerecke (2003), as compared with the original description ( Szalay 1929), the male from Croatia on which this redescription is based differs in the relatively larger genital field, higher total L of palp, with completely different proportions of single segments and Ac in an obtuse triangle. Further, note that the integument structure is deduced only from SMF 4974 (striated integument), Szalay gave no information. The specimens from the Cijevna river here used for the redescription of A. fluviatilis agree closely with the original description and Lundblad's measurements and drawings of the specimens from France and Spain (see: Lundblad 1956), e.g. in Szalay's figure, the Ac are arranged in curved line (as in our and Lundblad's specimens) rather than in an obtuse triangle (SMF 4974 [see Gerecke 2003]). This evidence and other differences is sufficient for considering that the first records (SMF 4974) of A. fluviatilis (see: Viets 1936) after the original description were based on wrong determinations. Thus, the specimens from Croatia and Israel attributed by Gerecke (2003) to A. fluviatilis represent an undescribed species.
A male from Iran agrees very well with the specimens from Balkan but differs in having a apple shaped genital field with Ac3 strongly reduced in size (L 25 vs. 31–43 in specimens from Balkan).
Distribution: The Balkans, Central Europe, Iberian peninsula, Iran; former records of A. fluviatilis require reconfirmation for a better understanding of its geographical distribution.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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