Enoploctenus inazensis ( Strand, 1909 )

Dupérré, Nadine, 2014, Demystifying three species of Ctenidae (Arachnida: Araneae) described by Embrik Strand. Part I, Ecuador, Zootaxa 3784 (1), pp. 67-73 : 69-71

Enoploctenus inazensis ( Strand, 1909)

Figs 4–8 .

Ctenus inazensis Strand 1909: 307 .

Enoploctenus inazensis (Strand) ; Polotow and Brescovit 2014: 359.

Type material: Label 1: Species: Ctenus inazensis Strand. Fundort : 1♂ 1♀ Syntypes, Ecuador, Santa Inaz. Leg. R. Haensch, Marz 1899. Det. Strand 1909. Zool. Mus. Berlin: Kat Nr. 30658. Label 2: M. 71, R. Haensch. Santa Inaz. Ecuador, Marz 1899. Label 3: Ctenus inazensis Strand [Types!]. (Deposited ZMB) EXAMINED.

Diagnosis. Females can be distinguished from all Ctenidae by the quadrangular median sector of the epigynum and the basal position of the lateral spurs ( Fig. 4 ); males can be diagnosed from all Ctenidae by the embolus base bearing two curved prongs and the elongated median apophysis ( Fig. 7 ).

Description. Female: Total length: 24; carapace length: 10; carapace width: 7.8. CEPHALOTHORAX: Carapace brown suffused with gray along radiating lines and on pars cephalica ( Fig. 6 ); pyriform; fovea long; covered with long white setae. Clypeus low (2 x AME). Sternum dark brown, as long as wide. Endites longer than wide; labium not notch. Chelicerae dark reddish-brown, geniculate; promargin with three teeth and retromargin four to five teeth. EYES: Eight in three rows; AME rounded, separated by half their width; PME rounded, separated by half their width; AME-PME separated by half the width of AME; ALE rounded, small close to PLE; PLE rounded. ABDOMEN: Light brown, elongated oval; with remnant patches of long white and black short setae LEGS: Orange-brown with dark gary pattern; leg spination damaged, not examined (see Strand 1909: 307, 308); metatarsus IV unmodified; tarsal claw with one large and five small tooth; claw tufts presents. Palpal claw with five large teeth and one small tooth. GENITALIA: Epigynum with elongated median sector, squared in the middle; lateral spurs positioned basally ( Fig. 4 ). Internal genitalia: copulatory ducts long; spermathecae globular; fertilization ducts short, situated on the inner side at the base of the spermathecae ( Fig. 5 ).

Male. Total length: 13; carapace length: 7; carapace width: 5. CEPHALOTHORAX: as in female. Chelicerae dark reddish-brown, geniculate; promargin three and retromargin four tooth. EYES: as in female. LEGS: Damaged, not examined (see Strand 1909: 308); metatarsus IV unmodified. ABDOMEN: Light beige, elongated oval. GENITALIA: Palpal tibia elongated, more or less equal to the cymbium ( Fig 7 ); retrolateral tibial apophyis short and pointed ( Fig. 8 ): retroapical tibial notch present ( Fig. 7 ). Palpal cymbium pointed ( Fig.7 ). Embolus elongated, with wide and transparent tip; base of embolus with two prongs; median apophysis elongated with curved tip; conductor white, small and oval ( Fig. 7 ).

Other material examined. Label 1: Species: Ctenus inazensis Strand. Label 2: Santa Inaz, Ecuador, Marz 1899. M.71. R. Haensch. Lable 3: Zool. Mus. Berlin: Kat Nr. 30659. 1♀ Syntypes.

Notes. Polotow and Brescovit (2014: 359) transferred C. inazensis to Enoploctenus Simon, 1897 based on the results of their morphological cladistic analysis ( Polotow and Brescovit 2014: figs 1, 2). In addition, they proposed a synapomorphic character for the genus Enoploctenus , the presence of a retroapical tibial notch of the male palpal tibia ( Polotow and Brescovit 2014: 8).

Distribution. Ecuador, Tungurahua province.

Figures

FIGURES 4 – 8. Enoploctenus inazensis Strand, 1909. Female 4 – 6. Male 7 – 8. 4. Holotype, epigynum ventral view. 5. Holotype, internal genitalia dorsal view. 6. Holotype, carapace dorsal view. 7. Syntype, palp ventral view. 8. Syntype, palp tibia retrolateral view. Abbreviations: c, conductor; cd, copulatory ducts; e, embolus; fd, fertilization ducts; ls, lateral spurs; ma, median apophyis; ms, median sector; rta, retrolateral tibial apophysis; rtn; retroapical tibial notch; s, spermathecae. Scale bars figures 4, 5: 0.5 mm; figures 6 – 8: 1.0 mm.