Birabenella elqui, Grismado, 2010

Grismado, Cristian J., 2010, Description of Birabenella, a New Genus of Goblin Spiders from Argentina and Chile (Araneae: Oonopidae), American Museum Novitates 2010 (3693), pp. 1-24 : 16

publication ID

https://doi.org/ 10.1206/3693.2

DOI

https://doi.org/10.5281/zenodo.5454852

persistent identifier

https://treatment.plazi.org/id/06592D72-3F3A-9C16-B582-FD0DFCD4449A

treatment provided by

Carolina

scientific name

Birabenella elqui
status

new species

Birabenella elqui   , new species

Figures 1 View FIGURES 1–2 , 60–69 View FIGURES 60–68 View FIGURE 69

TYPE MATERIAL: Female holotype from Chile: Coquimbo Region: Elqui Province: Cuesta Porotitos ; 29°47′ 40.1″S; 71°17′ 31.8″W ( WGS84 ) GoogleMaps   ; alt. 106 m ( GPS)   ; 16.VIII.2009; coll. C. Grismado, A. Ojanguren, J. Pizarro, and F. Alfaro. Coastal shrubby steppe, under stones. Deposited in MHNS ( PBI _ OON 14993 View Materials )   .

OTHER MATERIAL EXAMINED: None.

ETYMOLOGY: The specific epithet is a noun in apposition derived from the province where this species was collected.

DIAGNOSIS: This species resembles B. pizarroi   in lacking spines on the legs and in the texture of the cuticle of the cephalothorax (finely reticulate only at the sides of the carapace, the remaining areas smooth), but can be distinguished by the internal female genitalia with a small and irregularly shaped posterior receptaculum and longer and more sinuous anterior elements (fig. 68).

DESCRIPTION: Female (holotype): Total length 1.80. CEPHALOTHORAX: Carapace pale orange, surface of elevated portion of pars cephalica smooth, sides finely reticulate. Clypeus low, ALE separated from edge of carapace by less than their radius. Eyes: ALE largest; ALE-PLE separated by less than ALE radius. Sternum without radial furrows between coxae I–II, II–III, III–IV, surface smooth, microsculpture absent, lateral margins unmodified. Mouthparts: chelicerae anterior face unmodified, with a basal swelling. Labium subpentagonal. Female palp spines absent, with enlarged setae on tarsus. ABDOMEN: dorsum with soft portions pale light orange. Dorsal scutum absent. LEGS: pale orange. Leg spines absent. Tarsi I to IV superior claws unipectinate, but not examined in detail. Trichobothria not examined. GENITALIA: Shape similar to that of B. pizarroi   , but with the anterior elements longer and more sinuous, and with the posterior receptaculum reduced, irregular (fig. 68).

Male: Unknown.

NATURAL HISTORY: As in the sympatric B. homonota   .

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Oonopidae

Genus

Birabenella