Picobia paludicola Skoracki et Kiljan,

Skoracki, Maciej & Kiljan, Grzegorz, 2002, Picobia paludicola sp. n. a new species of quill mite (Acari: Prostigmata: Syringophilidae) from the Aquatic Warbler Acrocephalus paludicola (Passeriformes: Sylviidae), Zootaxa 91, pp. 1-6: 2-4

publication ID

http://doi.org/ 10.5281/zenodo.155967

publication LSID

lsid:zoobank.org:pub:424F5C93-0C54-4EC2-AE63-8BEC834C275C

persistent identifier

http://treatment.plazi.org/id/03E64912-FFC5-E43A-FECE-FE8C3CE9B7E2

treatment provided by

Plazi

scientific name

Picobia paludicola Skoracki et Kiljan
status

sp. n.

Picobia paludicola Skoracki et Kiljan  sp. n.

Type material

Holotype female, four female (physogastric form) paratypes and four male paratypes from the Aquatic Warbler Acrocephalus paludicola (Vieill., 1817)  ( Passeriformes  : Sylviidae  ); near Swinoujscie, Poland; October. 2001; leg. G. Kiljan.

Holotype, two female (physogastric form) paratypes and three male paratypes are deposited at UAM; two female (physogastric form) paratypes and one male paratype at ZIN.

Description

Female ( Figs. 1­5View FIGURES 1 ­ 5). Holotype. Total body length 460.

Gnathosoma: Gnathosoma  without punctations on ventral side. Apical margin of hypostome smooth and rounded ( Fig. 3View FIGURES 1 ­ 5). Stylophore rounded posteriorly, 155 long. Peritremes M­shaped, each transverse branch with 3­4 chambers, each longitudinal branch with 4­5 chambers; individual chambers of the peritremes well developed ( Fig. 4View FIGURES 1 ­ 5). Cheliceral digit with several teeth on posterior part ( Fig. 5View FIGURES 1 ­ 5).

Idiosoma: Propodosomal  plate divided longitudinally and not numerously punctated. The bases of setae ve, sci and sce situated on this plate. The length ratio of setae vi: ve: sci: h 1.2­1.3: 1: 1.4: 1.7­2. Setae vi, ve and sci strongly knobbed. The bases of setae vi and ve situated at the same level. Setae sce and d 1 subequal. Hysterosomal plate absent. The bases of setae d 2 placed closer to l 2 than to l 1. Pygidial plate present and punctated, occupying both dorsal and ventral surface posterior end of body. The bases of setae d 4, d 5, l 4, l 5, g, a 1 and a 2 set on this plate. The length ratio of setae d 4: l 4 1: 2; d 4: d 5 1: 2. Paragenital setae pg 1 and pg 2, subequal and placed in the same line. Genital series with one pair of setae, anal series with two pairs of setae. Genital setae thin and hair­like. Cuticular striations as in Figures 1, 2View FIGURES 1 ­ 5.

Legs: Coxae I­IV well developed, without punctations. Leg setae smooth. Setae sc 3 and sc 4 subequal. Setae 3 c 2.2 times longer than 3 b. Seate 3 b, 4 b, 3 c and 4 c smooth.

Length of setae: vi 115; ve 95; sci 130; h 155; sce 210; l 1 175; l 2 110; l 4 95; d 1 230; d 2 115; d 4 45; d 5 180; ic 1 30; ic 3 30; a 1 35; a 2 30­35; g 40­45; sc 3 25; sc 4 25; pg 1 70; pg 2 75; pg 3 140; 3 b 35; 3 c 80.

Distances between setal bases: vi­vi 40; ve­ve 75; sci­sci 75; h­h 120; d 1 ­d 1 30; sce ­ sce 120; vi­ve 20; ve­sci 40; sci­sce 75; sci­d 1 55; l 1 ­l 1 110; d 2 ­d 2 45; l 2 ­l 2 80; l 1 ­d 2 45; d 2 ­l 2 35.

Physogastric female: Morphology of gnathosoma  , idiosoma  and legs as in normal form except for total body length being 710 (in one paratype).

Lengths of setae (in four paratypes): vi 110­120; ve 90; sci 140; h 180­210; sce 220­ 235; l 1 155­175; l 2 100­110; d 1 235­245; d 2 130­140; l 4 85; d 4 40; a 1 30; a 2 30; g 1 35; ic 1 30; ic 3 30; pg 1 75; pg 2 75; pg 3 160; 3 b 30­45; 3 c 100­110.

Distances between setal bases: vi­vi 35; ve­ve 80; sci­sci 90; h­h 160; d 1 ­d 1 40; scesce 145; vi­ve 25; ve­sci 25; sci­sce 90; sci­d 1 70; l 1 ­l 1 125; d 2 ­d 2 45; l 2 ­l 2 125; l 1 ­d 2 130; d 2 ­l 2 80.

Male ( Figs 6­10View FIGURES 6 ­ 10):

Gnathosoma: Gnathosoma  without punctations on ventral side. Apical margin of hypostome smooth and rounded ( Fig. 9View FIGURES 6 ­ 10). Stylophore rounded posteriorly. Peritremes Mshaped, each transverse branch with 3­4 chambers, each longitudinal branch with 4­6 chambers, individual chambers of the peritremes well developed ( Fig. 10View FIGURES 6 ­ 10).

Idiosoma: Propodosomal  plate divided longitudinaly. The bases of setae ve, sci and sce situated on this plate. Propodosomal plates not numerously punctated. The length ratio of setae vi: ve: sci: h 1: 1: 1.4: 1.6. Setae vi, ve and sci knobbed. The bases of setae vi and ve situated at the same level. Setae sce and d 1 subequal. Hysterosomal plate present, divided and punctated, weakly sclerotized, the bases of setae d 2 and l 2 set on this plate. Setae l 1 2.3 times longer than d 2 and l 2. Pygidial plate present, weakly sclerotized, punctated, the bases of setae d 4 and l 4 placed on this plate. The length ratio d 4: l 4 1: 7.8. Paragenital setae pg 1 2 times longer than pg 2. Cuticular striations as in Figures 6­8View FIGURES 6 ­ 10.

Legs: Coxae I­II well sclerotized, coxae III­IV poorly sclerotized. Leg setae smooth. Setae sc 3 and sc 4 subequal. Setae 3 c 2 times longer than 3 b. Seate 3 b, 4 b, 3 c and 4 c smooth.

Lengths of setae (in four paratypes): vi 55; ve 55; sci 75; h 90; l 1 130; l 1 90; l 2 40; l 4 195; d 1 130; d 2 40; d 4 25; ic 3 25; sc 3 20; sc 4 15; pg 1 70; pg 2 35; 3 b 25­30; 3 c 50­55.

Distances between setal bases: vi­vi 20; ve­ve 50; sci­sci 55; h­h 100; d 1 ­d 1 25; scesce 85; vi­ve 15; ve­sci 20; sci­sce 45; sci­d 1 40.

Differential diagnosis

Picobia paludicola  sp. n. is closely related to P. currucae Skoracki et Magowski, 2001  from Lesser Whitethroat Sylvia curruca  ( Passeriformes  : Sylviidae  ) from Poland ( Skoracki & Magowski 2001). In females of both these species the apical margin of the hypostome is smooth and rounded; the propodosomal plate is divided longitudinally; setae vi and ve are situated in the same line; a hysterosomal plate is absent; genital setae are thin and hairlike; individual chambers of the peritremes are well developed.

Picobia paludicola  sp. n. differs from P. currucae  by the following characters (females). In P. paludicola  sp. n. the length of seta l 4 is 95; the lengths of setae d 4 and d 5 are 45 and 180 respectively; the length ratio of d 4: d 5 is 1: 4. In P. currucae  the length of seta l 4 is 50­55; the lengths of setae d 4 and d 5 are 35­45 and 35 respectively; the length ratio of d 4: d 5 is 1: 1.

UAM

University of Alaska Museum

ZIN

Russian Academy of Sciences, Zoological Institute, Zoological Museum

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Trombidiformes

Family

Syringophilidae

Genus

Picobia

Loc

Picobia paludicola Skoracki et Kiljan

Skoracki, Maciej & Kiljan, Grzegorz 2002
2002
Loc

P. currucae

Skoracki et Magowski 2001
2001