Echemus kaltsasi Chatzaki, 2019

Chatzaki, Maria & Keer, Johan Van, 2019, Ground spiders (Araneae: Gnaphosidae, Liocranidae, Prodidomidae) from the Greek islands Rodos, Symi and Karpathos, with the description of new species, Zootaxa 4646 (3), pp. 434-460 : 439-440

publication ID

https://doi.org/ 10.11646/zootaxa.4646.3.2

publication LSID

lsid:zoobank.org:pub:9179E6F0-AAD8-4FC6-86C6-B489F9462A0F

DOI

https://doi.org/10.5281/zenodo.5628761

persistent identifier

https://treatment.plazi.org/id/03EA8818-F133-B61C-A98E-A403FDB0F746

treatment provided by

Plazi

scientific name

Echemus kaltsasi Chatzaki
status

sp. nov.

Echemus kaltsasi Chatzaki View in CoL sp.n.

Figs 13–14 View FIGURES 13–16 , 17−18 View FIGURES 17–20

Diagnosis. Females of this species are very similar to E. angustifrons (Westring, 1861) but differ from it by the mushroom-like epigynal frame formed by the widely open lateral margins which connect to the anterior margin ( Figs 13–14 View FIGURES 13–16 ), in E. angustifrons continuing anteriorly as parallel S-shaped lines and not connecting to the anterior margin ( Figs 9–12 View FIGURES 9–12 ). It differs from E. levyi Kovblyuk, 2009 by the larger atrium of the epigynal plate and the larger glandular heads of the vulva.

Holotype: female, Symi, Panormitis, pitfalls in phrygana, 16.V to 12.VII.2006 ( NHMC: 8473), leg. M. Chatzaki & D. Kaltsas.

Comparative material examined. E. angustifrons: Evros district, Dadia forest, 1 ♀, pitfalls 5.VII to 5.VIII.2009 ( NHMC: 12116), leg. M. Chatzaki ( Figs 9 View FIGURES 9–12 ─10); Loutros N to Dadia, 17 Km after Loutros, 1♂ 1♀, pitfalls 22.VI to 21.VII.2015 ( NHMC: 17189), leg. K. Zografou.

Etymology. The name is given in honor of the biologist and colleague Dr. Dimitris Kaltsas, who contributed to the collection of the material presented here.

Description. Female holotype. Yellow spiders of medium to small size. Body and legs uniformly colored. Measurements: TL 4.965; CL 2.075; CW 1.555; AL 2.627. Eye sizes and interdistances: AME 0.117, PME 0.092x0.119, PLE 0.107, ALE 0.123, AME-ALE almost touching, AME-AME, PME-PME and PME-PLE ca equidistant and separated by less than 1/2 their diameter.All eyes round and pearly white with black surroundings, especially AME. PER procurved, AER straight to slightly recurved. Prosoma with widening thoracic region, fovea at posterior half of its length. Labium triangular, longer than wide. Chelicerae with 1 and 3 denticles on RM and PM respectively. Leg formula is IV>I>II>III. Legs spination: Leg I: Fe 2d 1pl; leg II: Fe 2d 1pl, Mt 1v; leg III: Fe 4-5d, Pa 1rl, Ti/Mt spinose; leg IV: Fe 3d, Pa 1rl, Ti/Mt spinose. Preening brush at Mt III and IV, Ta densely scopulated.

Epigyne ( Figs 13 View FIGURES 13–16 , 17 View FIGURES 17–20 ). Mushroom like atrium with large cup and short base formed by lateral margins which open widely to meet anterior margin and bend medially to form the base. Sclerotized median lines also present in the atrium.

Vulva ( Figs 14 View FIGURES 13–16 , 18 View FIGURES 17–20 ). Coiled copulatory ducts with long transverse glandular heads on anterior ends. Enlarged spermathecal sacs connected to copulatory ducts and attached to anterior margin. Spermathecae of rather irregular shape (not easily distinguished in the available specimen).

Distribution: Greece, Symi island.

NHMC

Natural History Museum, Rangoon

PM

Pratt Museum

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Gnaphosidae

Genus

Echemus

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