Corythalia fragilis (♂,♀) 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 with light bands. Eyes: AERdorsal edge recurve. Labium: Lengthlonger than wide. Palp: GnathocoxaCorner present. Tibia - retrolateral tibial apophysis - characteristicsdorsal serration indistinct but present. base of RTA not or not distinctly wider than distal section. RTA in ventral view slim. RTA long. RTA medium-sized in length. RTA in retrolateral view more or less parallel with longitudinal axis of palp. RTA in retrolateral view without bent (or just indistinct bent). Tibia - ventral bump - sizevery short and indistinct. Tibia - ventral bump - characteristicsinconspicuous. 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 structureswithout special structures. Sperm duct - locationoccupying clearly more than retrolateral half and at most 3/4. Sperm duct - shapedouble-stacked S-shaped, with proximal loop larger than others. Embolus: Base positionin prolateral half (or, depending on the size, prolateral 2/3, 3/4, etc.) of tegulum, in line with (or even extending) the prolateral margin; at distal section. Base circle sizelarge (width between 2/3 and 3/4 the width of tegulum). 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. 8 o´clock-position. Direction of distalmost sectionprolatero-distally (with between 11° and 50° angle from longitudinal axis of cymbium). width relation - at arising point - subdistallyfrom 4.1x to 7.5x broader. width relation - subdistally - centrallyfrom > 1/4 to < 1/2 the width of central section. Shapecircular curved. bent counterclockwise. General structurewithout or with 1-3 (at most) longitudinal ridges. long. with more than 1/2 winding but less than 3/4 winding. with distinct embolic lamella (longitudinally associated hyaline membrane (homologous to conductor?), over entire embolus length). without apophysis. in ventral view subdistally not narrower or narrower, but not distinctly narrower than proximally (more than 1/7 as broad. narrow (centrally between 1/4 and 1/3 the width of sperm duct). Special structuresickle-shaped. distally pointed. without apohysis (apophyses). with membranous lamella subdistally or distally. Legs: Leg formula3-4-2-1. 4-3-2-1. Colourationdark red-brown or brown with few lighter annulations, mainly at proximal articles and tarsi. completely or mainly with dark colour (e.g. dark red-brown) ((hardly with lighter sections, e.g. only tarsi lighter). Opisthosoma: Colourationtwo bands (AM missing or at most minimally indicated); C < 1/6 OL, but anyway slightly broader than PM and with dark chevron in centre; in the section between C and PM with several light, stacked chevrons. Distribution: Geographical DistributionSouth America.

Dimensions

Dimensions Body: Total length5.4 mm - 6.2 mm. Carapace length2.4 mm - 2.8 mm. Carapace width1.7 mm - 1.9 mm. Fovea length0.19 mm - 0.26 mm. Opisthosoma length2.5 mm - 2.8 mm. Opisthosoma width1.5 mm - 1.7 mm. Dimensions Clypeus : Height at AME0.19 mm - 0.22 mm. Height at ALE0.53 mm - 0.58 mm. Dimensions Eyes : Ocular area width1.5 mm - 1.6 mm. AME Ø0.45 mm - 0.52 mm. ALE Ø0.3 mm - 0.33 mm. PME Ø0.06 mm - 0.08 mm. PLE Ø0.25 mm - 0.28 mm. AME<=>ALE 0.04 mm - 0.06 mm. AME<=>AME PME<=>PME 1.17 mm - 1.31 mm. PME<=>PLE 0.23 mm - 0.25 mm. ALE<=>PLE 0.63 mm - 0.66 mm. PLE<=>PLE 0.92 mm - 1.03 mm. Dimensions Palp : total length2.0 mm - 2.3 mm. Femur length0.7 mm - 0.9 mm. Patella length0.3 mm - 0.4 mm. Tibia length0.3 mm. Tarsus length0.7 mm - 0.8 mm. Dimensions Legs: Femur I1.3 mm - 1.5 mm. Femur II1.3 mm - 1.5 mm. Femur III1.5 mm - 1.7 mm. Femur IV1.5 mm - 1.7 mm. Patella I0.7 mm - 0.8 mm. Patella II0.7 mm - 0.8 mm. Patella III0.7 mm - 0.8 mm. Patella IV0.7 mm - 0.8 mm. Tibia I0.8 mm - 0.9 mm. Tibia II0.9 mm - 1.0 mm. Tibia III1.1 mm - 1.3 mm. Tibia IV1.2 mm - 1.3 mm. Metatarsus I0.7 mm - 0.8 mm. Metatarsus II0.8 mm - 0.9 mm. Metatarsus III1.1 mm - 1.3 mm. Metatarsus IV1.2 mm - 1.4 mm. Tarsus I 0.5 mm. Tarsus II0.5 mm. Tarsus III0.6 mm - 0.7 mm. Tarsus IV0.6 mm - 0.7 mm. Leg I4.0 mm - 4.5 mm. Leg II4.2 mm - 4.7 mm. Leg III4.7 mm - 5.8 mm. Leg IV5.2 mm - 5.9 mm.

FEMALE

Body: MarkingsOpistosoma with dark or bright spots . basic colouring dark. Carapace: ColourationLaterally with light bands. Eyes: AERdorsal edge recurve. Labium: Lengthlonger than wide. Palp: GnathocoxaCorner absent. Legs: Leg formula4-3-1-2. 4-3-2-1. Colourationdark red-brown or brown with several lighter annulations, mainly at proximal articles and tarsi, but also at distal sections of tibiae and/or metatarsi. Opisthosoma: Colourationtwo bands (AM missing or at most minimally indicated); C < 1/6 OL, but anyway slightly broader than PM and with dark chevron in centre; in the section between C and PM with several light, stacked chevrons. Epigyne: Field - presencepresent. Field - widthbroader than long. Window - shapeoval. with transversal division (part of this devision might be indicated by colour difference or fine gradation). anterior 1/3 of epigynal window narrower than posterior 1/3. Windows - septum - statecontinuous. medium-sized (> 1/6, < 1/3 the width of epigynal window). separating more than only the posterior sections of epigynal windows. at anteriormost section clearly diverging. Window - posterior margin - distance to EpGF short. Window - posterior margin - positionnot reaching the epigastric furrow. Window - lateral margin - conditionwith gap (might be very conspicuous!). Window - anterior margin - conditionmargins of both epigynal windows anterio-medially not connected. Window - posterior half - shaperegularly rounded. Copulatory opening - locationlocated in posterior half of epigyne. Vulva: blind sac - lengthblind sac absent. fertilization duct - arising pointcentro-anteriorly. fertilization duct - widthinitial section of fertilisation duct medium-sized (not narrower or at most 3/4 as narrow as connective duct). primary spermatheca - shaperound. primary spermatheca - size rel.small (diameter of primary spermatheca less than 1/2 the length of epigynal window). primary spermatheca - positionno statement possible (e.g. because secondary spermatheca missing). secondary spermatheca - presenceabsent (at least not recognisable as such; spermathecal heads may be located on a slightly widened section of the copulatory duct). secondary spermatheca - spanno statement possible as secondary spermathecae absent. secondary spermatheca - orientationno statement possible as secondary spermathecae are absent. connective duct - initial positionno statement possible, as secondary spermathecae absent. connective duct - widthvery narrow. no statement possible, as secondary spermathecae and connective duct absent. connective duct - final positionventro-medially. connective duct - shapeconvoluted (with at least 5 curves). connective duct - length rel.very long (length of connective duct / width of primary spermatheca > or equal 2). head of spermatheca - shapeno statement possible, because heads of spermathecae absent. Distribution: Geographical DistributionSouth America.

Dimensions

Dimensions Body: Total length6.6 mm - 7.0 mm. Carapace length2.5 mm - 2.6 mm. Carapace width1.7 mm - 1.9 mm. Fovea length0.18 mm - 0.21 mm. Opisthosoma length3.1 mm - 3.5 mm. Opisthosoma width2.1 mm - 2.3 mm. Dimensions Clypeus : Height at AME0.18 mm. Height at ALE0.53 mm - 0.55 mm. Dimensions Eyes : Ocular area width1.5 mm - 1.7 mm. AME Ø0.49 mm - 0.53 mm. ALE Ø0.3 mm - 0.32 mm. PME Ø0.07 mm - 0.08 mm. PLE Ø0.26 mm - 0.28 mm. AME<=>ALE 0.04 mm - 0.05 mm. AME<=>AME PME<=>PME 1.17 mm - 1.31 mm. PME<=>PLE 0.24 mm - 0.26 mm. ALE<=>PLE 0.64 mm - 0.67 mm. PLE<=>PLE 0.96 mm - 1.03 mm. Dimensions Palp : total length2.0 mm - 2.3 mm. Femur length0.7 mm - 0.8 mm. Patella length0.4 mm - 0.5 mm. Tibia length0.4 mm. Tarsus length0.5 mm - 0.6 mm. Dimensions Legs: Femur I1.3 mm - 1.4 mm. Femur II1.2 mm - 1.4 mm. Femur III1.4 mm - 1.5 mm. Femur IV1.5 mm - 1.6 mm. Patella I0.7 mm. Patella II0.7 mm. Patella III0.7 mm. Patella IV0.7 mm - 0.8 mm. Tibia I0.8 mm - 0.9 mm. Tibia II0.8 mm - 0.9 mm. Tibia III1.0 mm - 1.1 mm. Tibia IV1.0 mm - 1.2 mm. Metatarsus I0.6 mm - 0.7 mm. Metatarsus II0.7 mm. Metatarsus III1.0 mm - 1.1 mm. Metatarsus IV1.1 mm. Tarsus I 0.5 mm. Tarsus II0.5 mm. Tarsus III0.5 mm - 0.6 mm. Tarsus IV0.6 mm. Leg I4.0 mm - 4.2 mm. Leg II3.9 mm - 4.4 mm. Leg III4.6 mm - 4.7 mm. Leg IV4.9 mm - 5.3 mm.