Anahita jinsi, Jager, 2012

Jäger, Peter, 2012, Asian species of the genera Anahita Karsch 1879, Ctenus Walckenaer 1805 and Amauropelma Raven, Stumkat & Gray 2001 (Arachnida: Araneae: Ctenidae), Zootaxa 3429 (1), pp. 1-63: 11-13

publication ID

http://doi.org/ 10.11646/zootaxa.3429.1.1

persistent identifier

http://treatment.plazi.org/id/C8488786-1111-FF91-FF71-F98C56FCFF10

treatment provided by

Felipe

scientific name

Anahita jinsi
status

spec. nov.

Anahita jinsi   spec. nov.

Figs 1, 28–38

Type material. Holotype female ( SMF), China, Sichuan Province, Baoxing County, Tuanjie village , N 30°25.126', E 102°44.38', 1111 m altitude, secondary forest, leaf litter, by hand, by day, P. Jäger leg. 28.VI.2004 GoogleMaps   . Paratypes: 2 males, 1 female ( SMF) with same data as for holotype GoogleMaps   .

Etymology. This species is named according to its similarity with Anahita fauna   (Chinese [jinsi] meaning similar); term in apposition.

Diagnosis. Small Ctenidae   (total length male 6.5–6.6, female 7.0–8.3). Similar to Anahita fauna   , A. samplexa   and A. punctulata   in having a long embolus and tegular apophysis in males ( Figs 31–33) as well as a weakly sclerotised epigyne without a clearly recognisable median septum in females ( Fig. 28). Females are best distinguished by the length and shape of the glandular appendages of the internal duct system: in A. jinsi   spec. nov. it is long having at least three bends ( Fig. 29; shorter with only one bend in A. fauna   [ Fig. 26], A. samplexa   and A. punctulata   ). Males of the four species are only hardly distinguishable. Length and shape of the tegular apophysis, arising point of the embolus and course of its proximal part might be diagnostic, but since an insufficient amount of material was available to judge intraspecific variation, these characters are listed in the description only. The retrolateral stout spine at the distal tibia (DS in Fig. 33, “conical apophysis” sensu Peck 1981) might be diagnostic in comparison to A. fauna   and A. samplexa   .

Description. Male (paratype). PL 3.4, PW 2.8, AW 1.2, OL 3.1, OW 1.8. Eye diameters and interdistances: AME 0.18, ALE 0.12, PME 0.26, PLE 0.25, AME–AME 0.05, AME–ALE 0.20, PME–PME 0.10, PME–PLE 0.16, AME–PME 0.10, ALE–PLE 0.10, clypeus AME 0.14, clypeus ALE 0.35. Palp and leg measurements: palp 4.5 (1.6, 0.6, 0.9, -, 1.4), I 18.5 (4.4, 1.5, 5.1, 4.8, 2.7), II 14.6 (3.8, 1.4, 3.9, 3.7, 1.8), III 12.3 (3.3, 1.3, 3.0, 3.3, 1.4), IV 17.2 (4.5, 1.3, 4.3, 5.3, 1.8). Leg formula 1423. Spination of palp and legs: palp 151, 100, 1301; femora I p012, d111, r112, II–III p112, d111, r112, IV p112, d111, r012; patellae I 001, II–III 101; tibiae I p010, d011, r110, v22222, II p010, d111, r110, v22222, III–IV p11, d111, r11, v222; metatarsi I p111, r110, v222, II p111, r111, v222, III p112, d010, r112, v222, IV p112, d010, r112, v21112. Chelicerae with 3 promarginal, 6–7 retromarginal teeth, and with elongated narrow patch of about 14 denticles along entire cheliceral furrow. Retromargin of chelicerae close to fang base with one bristle. Leg claws I–IV with 4 secondary teeth. Position of tarsal organ: I 0.95, II 0.91, III 0.85, IV 0.85.

Palp as in diagnosis ( Figs. 31–34). Palpal tibia without RTA, distally with retrolateral stout spine. Cymbium elongate oval, retrolaterally with slightly stronger bulge than prolaterally. Embolus arising at 3-o’clock-position, long and filiform, running around tegulum, its tip situated distally in 12- to 12.30-o’clock-position. Conductor arising at 12.30-o’clock-position distally from tegulum, partly hidden by tegular apophysis in ventral view. Tegular apophysis arising from central tegulum, with parallel margins in its slender proximal part and widened distally with pointed rim dorsally (visible in prolateral view). Tegular apophysis slightly stouter than in A. fauna ( Yoshida 2009)   . Intersegmental membrane at tibia-tarsus joint with sclerite (IS in Figs 32–34).

Colour. Yellowish brown partly with darker pattern. Dorsal prosoma with two broad lateral bands and marked fovea. Submarginally with narrow broken band, marginally with thin black line. Sternum, ventral coxae, labium and gnathocoxae yellowish-brown without pattern. Chelicerae with two indistinct longitudinal bands especially in proximal half. Legs yellowish-brown with spots on ventral femora and dark parts mostly at joints on legs III–IV. Dorsal opisthosoma with distinct light median band. Ventral opisthosoma spotted. Spinnerets yellowish brown, anterior spinnerets laterally black. Colour of living male see Fig. 35.

PME 0.10, ALE–PLE 0.16, clypeus AME 0.09, clypeus ALE 0.35. Palp and leg measurements: palp 3.35 (1.1, 0.55, 0.8, -, 0.9), I 9.25 (2.5, 1.2, 2.9, 1.9, 0.75), II 8.3 (2.2, 1.1, 2.3, 1.9, 0.8), III 7.35 (1.9, 1.0, 1.8, 1.9, 0.75), IV 10.45 (2.9, 1.1, 2.2, 3.1, 1.15). Leg formula 4123. Spination of palp and legs: palp 131, 100, 1211, 1013; femora I p021, d111, r011, II p012, d111, r011, III p012, d111, r111, IV p112, d111, r002; patellae I–II 000, III–IV 101; tibiae I v22222, II p01(0)0, v22222, III–IV p11, d111, r11, v222; metatarsi I–II v222, III p112, d010, r112, v222, IV p112, d010, r112, v21112. Chelicerae with 3 promarginal, 8 retromarginal teeth, and with patch of five tiny denticles close to promarginal teeth and a row of 7 denticles along cheliceral furrow. Retromargin of chelicerae close to fang base with 1 bristle. Palpal claw with 5 secondary teeth. Leg claws I–IV with 3 secondary teeth. Position of tarsal organ: I 0.82, II 0.83, III 0.73, IV 0.78.

Copulatory organ as in diagnosis ( Figs 28–30). Epigynal field with two slit sense organs, one on each side, both situated at a distance of three times their length (five times in A. fauna   ). Median plate narrows anteriorly, with large lateral lobes. Copulatory openings situated anterio-medially. Copulatory ducts running a loop medially, then following lateral lobes and leading to posteriorly situated spermathecae from medio-ventral side; lateral external margin of ducts smooth, inner margin slightly undulating. Glandular appendages arising from anterior spermathecae, looping in anterior direction. Fertilisation ducts arising from spermathecae close to the point where copulatory ducts flow in spermathecae.

Colour. As in male, but generally with more distinct and vivid pattern on legs. For colour of living females see Figs 36–38.

Variation. Spination patella I of other male paratype: 101.

Distribution. Known only from the type locality ( Fig. 1: 4).

not belong to A. fauna   . The male, however, exhibits a similarly long and slender tegular apophysis as shown for A. fauna   (cf. Yoshida 2009).

SMF

Forschungsinstitut und Natur-Museum Senckenberg

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Ctenidae

Genus

Anahita