[List of Descriptions - New Taxa] [Diagnostic Drawings] [Regional Keys for Salticidae] [See also Catalogue: Habrocestum]

Descriptions of New Taxa

A Supplement to Salticidae Diagnostic Drawings Library

by Jerzy Proszynski 1997

Habrocestum shulovi Proszynski, 2000

(prepared 1988, published Proszynski J. 2000. On mostly new Salticidae (Aranei) from Levant. Arthropoda Selecta, Moskwa, 8(4): 245, figs 48-51)

See also Drawings

Material: Holotype female Habrocestum shulovi sp. n., misidentified and labelled as "Salticus capreolus Koch t. 49, B. 1833", presumably from "Palestine"; Coll. Hope Entomological Collections, Oxford.

Etymology. Named for Dr. A. Shulov, a pioneer of zoology in the Israel, prominent contributor to the Israel National Arachnid Collection.

Diagnosis. Relatively large spider with high and flat cephalothorax, almost vertical posterior thoracal slope, instantly recognizable by unique external and internal structure, resembling in general outline Habrocestum arabicum Proszynski, 1989: 33-34, ff. 3-4, and related to other species of Habrocestum.

Female

Cephalothorax light brown with darker eye field; covered with inconspicuous adpressed whitish setae whose weak concentrations may suggest previous existence of a white median dorsal line along cephalothorax and some white pattern on the eye field, but that requires confirmation on fresh specimens; patches of white setae on dorsal tips of rims of eyes I; there are short dark upright bristles, scattered over dorsal surface, quite prominent; lower posterior part of sides lighter yellowish, with thin dark edge. Abdomen large and round, now poorly preserved, with tegument separated from soft tissues; very indistinct traces of two white and dark chevrons in the anterior half of abdomen; traces of posterior median white area, anteriorly limited by a narrow chevron of darker setae.

Frontal aspect: contrast of dark eye field with yellowish fawn clypeus, almost bald, with three prominent bent bristles between eyes AME, somewhat beneath, and a few indistinct colorless setae overhanging cheliceral bases; orbital setae on rims of eyes I white except brown laterally on ALE; chelicerae yellowish fawn. Diameter of ALE equal to half of AME, eyes ALE aligned along dorsalmost point of rims of AME. No contrasting or striking characters visible. Legs robust and short, length of legs order 4, 3, 1, 2, difference in length between the I and II insignificant; patellae-metatarsi I-IV yellow with darker annulation. Tibia I with three ventral spines retro-laterally, prolaterally two lateral and two ventral spines, the latter in the apical half of the segment. Ventral aspect: sternum light brown, coxae pale yellow.

Epigyne with anterior sclerotized transverse slit and curved posterior edge ; membraneous and transparent copulatory channels originate at the ends of slit and run short way anteriorly, giving of small sclerotized lateral chamber (accessory gland structure?), then make prominent turn 180 degrees and run posteriorly along median line of epigyne, entering small, spherical, heavily sclerotized chambers of spermathecae, with a few prominent internal spines; terminal fertilization channels run off from these chambers dorsally; vaginal roof extends from the posterior edge of epigyne to the spermathecae, its heavily sclerotized postero-lateral transverse extensions may be actually sclerotized pockets . There is some resemblance in the general layout to internal structure of epigyne Habrocestum arabicum Proszynski from Saudi Arabia, although actual shape is rather different.

Measurements (mm): Female. Length of cephalothorax 2.99; length of abdomen 4.42.

Distribution: Israel.