Loxosceles mrazig Ribera & Planas 2009

Description. Colouration: Carapace pale yellowish with a fine, pale brown lateral stripe. Median groove and adjacent integuments darkened. Pars cephalica slightly darkened, brown coloured, and clearly demarcated by a lateral reddish brown line. Less conspicuous, but still important, diagnostic traits are the four thin longitudinal lines (lightly impressed when seen under higher magnification) located in the centre of the pars cephalica (Fig. 6). Eye tubercles black. Sternum pale yellowish, paler than carapace. Labium and gnathocoxae with slightly more pigmentation. Legs light yellow or somewhat shaded, with the apical segments slightly darkened. Opisthosoma yellowish-white.
Prosoma. Carapace (Fig. 6) slightly longer (2.39) than wide (2.15). Median groove deep, occupying the posterior third of carapace. Clypeal width slightly more than 2.5 diameters of ME. Eyes close together (Fig. 7); LE separated from ME by the diameter of ME. LE larger than ME (0.18 - 0.1 respectively). Sternum about ⅔ as wide as long, extended between the IV pair of coxae. Labium as long as wide at its base, apically narrowed and rounded. Gnathocoxae distally convergent, enclosing the labium.
Opisthosoma elongate oval in dorsal view.
Male palp (Figs 2-5). Femur cylindrical, more than five times longer than wide. Tibia short, oval, slightly longer than wide. Tarsus fl attened below, slightly shorter than tibia, rounded apically. Tegulum large, 4/5 as wide as tarsal length. Embolus enlarged at base, forming a sinuous curve, about 1.5 times longer than tegulum.
Measurements. Male (holotype): Prosoma 2.15 wide, 2.39 long: opisthosoma 3.22 long. Total body length 5.61. Legs: I: coxa 0.81, trochanter 0.23, femur 5.42, patella 0.84, tibia 5.70, metatarsus 5.76, tarsus 1.38, total length 20.14; II: coxa 0.58, rest of segments missing. III: coxa 0.81, trochanter 0.23, femur 4.94, patella 0.82, tibia 4.69, metatarsus 5.37, tarsus 1.12, total length 17.98; IV: coxa 0.81, trochanter 0.23, femur 5.26, patella 0.84, tibia 5.40, metatarsus 6.42, tarsus 1.33, total length 20.29; Palp: femur 1.19, patella 0.36, tibia 0.63, tarsus 0.56, total length 2.74.
Female unknown.

Distribution. So far, L. mrazig is known only from the type locality. The unique specimen was collected in a dune of sand near the city of Douz.