Corythalia tribulosa (♂) BAYER, HÖFER & METZNER, 2020

In addition to the genus diagnosis, the following features characterize the species:

MALE

Body: MarkingsOpistosoma with dark or bright spots . basic colouring dark. Carapace: ColourationLaterally without light bands. Chelicera: Base furrow teeth number promarginal2 teeth. Eyes: AERdorsal edge recurve. Labium: Lengthlonger than wide. Palp: GnathocoxaCorner present. Tibia - retrolateral tibial apophysis - characteristicsdorsal serration absent. base of RTA not or not distinctly wider than distal section. RTA in ventral view slim. RTA in ventral view medium-sized in width (between 3x longer than broad and 4.5x). RTA medium-sized in length. RTA in retrolateral view with clear ventral orientation (at least 10° angle). RTA in retrolateral view with bent (distal section at least with 70° bent from longitudinal axis of proximal section). Tibia - ventral bump - sizemedium-sized (as long or about as long as width of sperm duct). long (at least 1.5x as long as width of sperm duct, sometimes extending beyond lateral margin of tibia in ventral view). Tibia - ventral bump - characteristicsconspicuous. very large (extending prolateral margin of tbia in ventral view). Cymbium: Presence of prominent ridges or extensions ventrally absent. Tegulum: Widthtegulum narrower than cymbium. Shape of proximal halfproximal tegulum lobe present. proximal tegulum lobe absent. Proximal lobe - positiondistinctly shifted centrally. Proximal lobe - size rel.broad. Proximal lobe - shaperegularly rounded. Special structureswith (fine) transversal ridge (often at distal half at the area of the border between embolic division and tegulum). Sperm duct - locationoccupying clearly more than retrolateral half and at most 3/4. Sperm duct - shapedouble-stacked S-shaped, with proximal and distal loop equal in size. Embolus: Base positionin prolateral half (or, depending on size, prolateral 2/3, 3/4, etc.) of tegulum but not reaching prolateral margin, at subdistal section (almost distally). Base circle sizemedium-sized. Base - special structuresSpecial structures at/ on embolus base absent (except for indistinct ridges or flat bulges that are often recognisable). Arising point6 o´clock-position. 7 o´clock-position. Direction of distalmost sectionprolatero-distally (with between 11° and 50° angle from longitudinal axis of cymbium). width relation - at arising point - subdistallyat most 2x broader. width relation - subdistally - centrallyfrom > 3/4 to < 1x the width of central section. Shapecircular curved. bent counterclockwise. General structurewithout or with 1-3 (at most) longitudinal ridges. medium-sized, between 1/2 and 1x the width of tegulum. with less than 1/2 winding. without distinct embolic lamella over entire embolus length. with apophysis. in ventral view subdistally not narrower or narrower, but not distinctly narrower than proximally (more than 1/7 as broad. quite broad and hose-shaped. massive (centrally almost as broad or broader than width of sperm duct). Special structuredistally irregularly bifurcated. distally pointed. distally distinctly bent retrolaterally. tip bent retrolaterally (tip may be very fine and light). with two apohysis. Legs: Leg formula4-3-2-1. Colourationmoderately dark or light (red-)brown with many lighter annulations. Opisthosoma: Colourationthree bands; AM broadest; AM & C narrower (C < 1/6 OL), without light small stacked chevrons betw. C & PM. Distribution: Geographical DistributionSouth America.

Dimensions

Dimensions Body: Total length5.6 mm. Carapace length2.5 mm. Carapace width1.9 mm. Fovea length0.28 mm. Opisthosoma length2.6 mm. Opisthosoma width1.5 mm. Dimensions Clypeus : Height at AME0.29 mm. Height at ALE0.62 mm. Dimensions Eyes : Ocular area width1.7 mm. AME Ø0.58 mm. ALE Ø0.36 mm. PME Ø0.08 mm. PLE Ø0.33 mm. AME<=>ALE 0.03 mm. AME<=>AME PME<=>PME 1.46 mm. PME<=>PLE 0.22 mm. ALE<=>PLE 0.61 mm. PLE<=>PLE 1.19 mm. Dimensions Palp : total length2 mm. Femur length0.8 mm. Patella length0.3 mm. Tibia length0.2 mm. Tarsus length0.7 mm. Dimensions Legs: Femur I1.5 mm. Femur II1.5 mm. Femur III1.9 mm. Femur IV1.8 mm. Patella I0.7 mm. Patella II0.7 mm. Patella III0.8 mm. Patella IV0.8 mm. Tibia I0.9 mm. Tibia II1 mm. Tibia III1.3 mm. Tibia IV1.3 mm. Metatarsus I0.8 mm. Metatarsus II0.9 mm. Metatarsus III1.3 mm. Metatarsus IV1.5 mm. Tarsus I 0.5 mm. Tarsus II0.5 mm. Tarsus III0.6 mm. Tarsus IV0.6 mm. Leg I4.4 mm. Leg II4.6 mm. Leg III5.9 mm. Leg IV6 mm.