Psechrus hartmanni Bayer, 2012

Ashigha, I. V., Sen, S. & Pavittu, M. S., 2021, First record of Psechrus hartmanni Bayer, 2012 (Araneae: Psechridae) from India, Far Eastern Entomologist 441, pp. 13-16 : 15

Psechrus hartmanni Bayer, 2012

Figs 1–4

MATERIAL EXAMINED. India: Tamil Nadu, Kanyakumari Wildlife Sanctuary,

8°29'33.72"N, 77°22'52.68"E, h= 1329 m, 16.II 2020, 1♀, leg. S. Sen.

DIAGNOSIS. Females of P. hartmanni Bayer, 2012 is similar to that of P. torvus (O.

Pickard-Cambridge, 1869) and P. zygon Bayer, 2012 but can be distinguished from them by the following combination of characters: first loop of the copulatory duct directed laterally in P. hartmanni (first loop of copulatory duct directed anteriorly in P. torvus ), distal portion of the copulatory duct located lateral to the spermathecal head in P. hartmanni (while distal portion of the copulatory duct located medial to the spermathecal head in P. zygon ).

DESCRIPTION. Female. Body measurements: Carapace length = 6.50, Carapace width=

4.47, Abdominal length = 10.14, Abdominal width 4.36, Total length = 16.80. Cephalothorax yellowish brown, longer than wide, anteriorly narrowed, two distinct median brown longitudinal and two lateral brown bands with serration ( Fig. 1 ); eyes 8, anterior row more recurved than posterior row, AME = 0.33, ALE = 0.43, PME = 0.44, PLE = 0.44, inter ocular distance: AME-AME = 0.27, AME-ALE = 0.30, ALE-ALE = 0.51, PME-PME = 0.25, PLEPLE = 0.32, PLE-PLE = 1.68, ALE-PLE = 0.37, AME-PME = 0.51; clypeus yellowish brown,

height 0.9. Chelicera brown, furrow with 3 promarginal and 5 reteromarginal teeth and 4

small denticles in between both rows of teeth; maxillae brown, longer than wide, apically scopulate ( Fig. 2 ). Legs yellowish brown, long, with hairs and spines, leg measurements: Ⅰ

46.0 (13.0, 2.0, 13.0, 12.0, 6.0), II 33.0 (10.0, 2.0, 9.0, 8.0, 4.0), III 23.0 (7.0, 2.0, 5.0, 6.0,

3.0), IV 36.0 (11.0, 2.0, 9.0, 9.0, 5.0), leg formula 1423; leg spination: femur Ⅰ 555, II 546, III

555, IV 544; patella Ⅰ-IV 0000; tibia Ⅰ 3137, II 3038, III 2024, IV 3147; metatarsus Ⅰ 3036, II

3047, III 3036, IV 3146. Abdomen dorsally yellowish brown with median and lateral dark grey patches ( Fig. 1 ); ventrally greyish brown with a median and 2 lateral longitudinal white lines, spinnerets yellowish brown ( Fig. 2 ).

Epigyne with curved wrinkles anterior to the median plate; copulatory ducts long and larger than spermatheca, first loop of copulatory duct directed laterally, distal part of copulatory duct located lateral to spermathecal head, spermathecal head positioned antero-

median to spermatheca, spermathecal base broad, narrow fertilization duct originated from spermathecal base ( Figs 3, 4 ).

DISTRIBUTION. India (new record), Sri Lanka.

Figures

Figs 1–4. Female of Psechrus hartmanni Bayer, 2012: 1 – habitus, dorsal view; 2 – the