New Chummidae (Araneae): quadrupling the size of the clade Author Jocqué, Rudy Author Alderweireldt, Mark text European Journal of Taxonomy 2018 2018-03-13 412 1 25 journal article 22340 10.5852/ejt.2018.412 49d1e797-32b4-414b-a993-63ec0110d8db 3806047 F682863D-C20B-4DE7-97B9-4EB0D4E20649 Chumma tsitsikamma sp. nov. urn:lsid:zoobank.org:act: A9071899-EE0D-4AF2-B73A-F3039827CE96 Figs 10 A–C, 11A–E, 12 Diagnosis Males of C. tsitsikamma sp. nov. are recognized by the dorsal bifid RTA with a sharp spur pointing up and backward, and by the solid embolus pointing down. Etymology The specific epithet is a noun in apposition taken from the type locality. Material examined Holotype SOUTH AFRICA : ♂, Eastern Cape Province , Tsitsikamma National Park , 34°00.742′ S , 23°52.282′ E , high moisture coastal forest, 24 Dec. 2011 , J.A. Neethling and C. Luwes leg. ( NCA 2012 /4034). Paratypes SOUTH AFRICA : 3 ♂♂, same collecting data as for holotype ( NCA 2015/4659). Description Male BODY MEASUREMENTS. TL 2.57, CL 1.10, CW 1.00, CH 0.50. CARAPACE. Pale yellow with slightly darker striae and cephalic area; chelicerae, legs and sternum pale yellow ( Fig. 11 A–B). ABDOMEN. With pale brown scutum, strongly narrowed in front; anterior third with supple setae, the frontal rows with sockets in front of pale circle; scutum with four impressed apodemes and two dorsal and two lateral depressions; sides and venter white, with two rows of apodemes. EYES. AME: 0.20; ALE: 0.33; AME–AME: 0.07; AME–ALE: 0.03; PME: 0.30; PLE: 0.33; PME–PME: 0.17; PME–PLE: 0.07. Clypeus 0.27 or 0.82 times width of ALE. STERNUM. Length 1.83, width 1.77, almost as long as wide. LEGS. Anterior pairs of tarsi fusiform. PALP ( Figs 10 A–C, 11C–E). Tibia with two apophyses: dorsal one flat, truncated, at its base with sharp spur pointing up and backward; ventral one robust, short with concave ventral side; tegulum with short retrolateral and ventral protrusions; embolus solid, twisted, sharp prong, pointing ventrad. LEG MEASUREMENTS.
Fe P Ti Mt T Total
I 1.00 0.33 0.97 0.83 0.63 3.77
II 0.90 0.33 0.73 0.70 0.50 3.17
III 0.77 0.33 0.50 0.63 0.33 2.57
IV 1.17 0.37 0.87 1.07 0.53 4.00
Fig. 10. Chumma tsitsikamma sp. nov. , holotype, ♂ A . Palp, ventral view. B . As preceding, retrolateral view. C . Palpal tibia, dorsal view. Scale bars: 0.2 mm. Female Unknown. Note It is not impossible that the females here described as C. bicolor sp. nov. belong to the same species. The difference in habitus and mainly the absence of black patches in C. tsitsikamma sp. nov. made us decide to keep them apart.
Fig. 11. Chumma tsitsikamma sp. nov. , holotype, ♂. A . Habitus, dorsal view. B . Anterior part of abdomen, dorsal view. C . Palp, dorsal view. D . As preceding, ventral view. E . As preceding, retrolateral view. Scale bars: A–B = 0.5 mm; C–F = 0.2 mm. Distribution Known from the Tsitsikamma National Park in the Eastern Cape Province in South Africa ( Fig. 12 ).