Group rubripes

Diagnosis. Species of the group rubripes of Corinna can be recognized by the finely granulated carapace and chelicerae (Figs. 4–6, 9–10), high cephalic region, abruptly depressed posteriorly (Figs. 7–8, 37–40); posterior eye row procurved (Figs. 2–3, 6). Male palp with retrolateral tibial apophysis robust, without ventral process (Figs. 47, 50, 68, 74, 99); tegulum wide and ovoid (Figs. 45, 54, 78, 87); reservoir with ellipsoid orientation (Figs. 43, 58, 63, 90); tegular process triangular, poorly developed or absent (Figs. 43, 54, 74, 83, 94); conductor not extended prolateraly, generally accommodating the distal third of the embolus (Figs. 47, 58, 69, 90); embolus base fused to tegulum (Figs. 45, 63, 70, 94). Posterior vulval plate well developed, with lateral folds embracing the primary and secondary spermathecae and latero-median fenestrae at the level of primary spermathecae (Figs. 53, 66, 77, 81, 86, 97, 110).

Description. Total length (males and females) 7.25–16.5. Carapace suboval in dorsal view, with fine granulations (Figs. 1, 4–5, 33–36), longer than wide, widest at coxae II, cephalic area high (Figs. 7–8, 37–40), well defined, specially in C. caatinga (Fig. 40); thoracic area with abrupt posterior depression, thoracic groove short; clypeus low (variation 0.27–0.65); posterior and anterior eye rows procurved in both in frontal and anterior views (Figs. 2–3, 6); MOQ wider than long (C. regii n. sp. and C. ziriguidum n. sp., longer than wide); eyes circular (Figs. 3, 6), AME slightly larger than others. Interdistances: AME–AME separated by approximately AME diameter; AME–ALE by one to two AME diameters (in C. loiolai n. sp. separated by more than two times AME diameter); PME–PME by one to two PME diameters (females of C. balacobaco n. sp. and C. caatinga n. sp. separated by more two times PME diameter); PME–PLE by two to four PME diameters; ALE–PLE separated by approximately PLE diameter. Chilum glabrous, entire (reduced in C. tranquilla n. sp.). Chelicerae voluminous, strongly geniculate, with thin granulations and conspicuous basal condylus (Figs. 9–10, 13, 37–40); cheliceral promargin with 3 teeth, retromargin mostly with 4 teeth (Fig. 12), C. demersa n. sp., C. maracas n. sp. and C. loiolai n. sp. with 5 retromarginal teeth (Fig. 14) and C. caatinga n. sp. with 6 retromarginal teeth; fang strong (Fig. 11), cheliceral length approximately equal to height of carapace (C. caatinga sp. n., females of C. zecarioca n. sp and males of C. maracas n. sp., approximately two times or more the carapace height). Endites convergent, promargin concave, retromargin with discrete internal excavation (Fig. 16), serrula in single row; labium longer than wide, with laterally projected posterior margin (Fig. 16); sternum longer than wide, entirely rebordered, especially on anterior margin (Fig. 15). Legs long, leg formula variable, generally I, IV, II, III; in C. rubripes, C. demersa n. sp., C. maracas n. sp., C. caatinga n. sp., C. tranquilla n. sp., males of C. vesperata n. sp., females of C. jecatatu n. sp. and C. mourai, IV, I, II, III. Femur I and II generally with 2 ventral and 1 prolateral spines; metatarsus I and II generally with 2 pairs of ventral spines; dense scopula on all tarsi (Figs. 23, 27) and metatarsi I and II (covering the entire segment, distal half or distal third); distal metatarsi III and IV with ventral dense clusters of stout setae (Fig. 24); claws pectinate, with 12–13 teeth (Fig. 28); claw tufts dense (Figs. 26–27); thricobothria irregularly distributed on dorsal surface of tarsi (Figs. 17, 21–22), thricobothrial base rebordered (Figs. 18–19); tarsal organ subapical, capsulated, with rounded aperture (Fig. 20); female palpal tarsus with one pectinate claw (Fig. 25). Abdomen generally oval, with long sparse simple and feathery setae, except in C. aechmea n. sp., C. demersa n. sp. and C. maracas n. sp. with dense hair covering (Figs. 29–32); male dorsal scutum placed on anterior distal third or anterior half of abdomen, generally elongate (Figs. 33–36); scutum absent in females; tracheal tubercle absent; colulus inconspicuous, with few setae.

Male palp: Femur unmodified, generally with two distal dorsal spines (C. jecatatu n. sp. with one; C. balacobaco n. sp. and C. zacarioca n. sp. with three spines). Patella unmodified. Tibia with single RTA, robust, without ventral process (Figs. 47, 54, 63, 78, 90); ppRTA small in C. telecoteco n. sp., C. ziriguidum n. sp. and C. balacobaco n. sp. (Figs. 43, 45, 83), large in C. aechmea n. sp., C. jecatatu n. sp. and C. zecarioca n. sp. (Figs. 50, 54, 58); C. demersa n. sp. and C. maracas n. sp. with ventro-apical incision (Figs. 91, 95); C. vesperata n. sp. and C. hyalina n. sp. with RTA retrolaterally enlarged (Figs. 75, 79). Cymbium with distal dorsal scopula; in C. caatinga n. sp., cymbium with a large spurn-like basal dorsal projection, tapering towards the dorsum of tibia (Figs. 64, 68). T wide and ovoid, reservoir with ellipsoid orientation, with four folds visible ventrally (Figs. 47, 50, 63, 78); TPC triangular, firmelly attached to tegulum, poorly developed, generally inserted prolateraly (Figs. 43, 58, 74, 87), except in C. caatinga n. sp. inserted retrolaterally (Figs. 63, 70), absent in C. demersa n. sp. and C. maracas n. sp. (Figs. 90, 94); Tpr inserted retroapically in C. vesperata n. sp., C. vilanovae n. sp. and C. maracas n. sp. (Figs. 74, 87, 94), inserted apically in C. aechmea n. sp. (Fig. 50). C sclerotized, not extended prolateraly, with retrolateral margin forming a groove which accommodates the distal third of embolus (Figs. 47, 58, 69, 90); groove absent in C. vilanovae n. sp. and C. maracas n. sp. (Figs. 87, 94). E fused to tegulum, curved retrolaterally, generally filiform (Figs. 45, 63, 78, 90); in C. vilanovae n. sp., flattened, with wide tip (Fig. 87).

Epigynum: Ventral plate generally not projected posteriorly (Figs. 56, 60, 76, 85, 96, 105); moderatelly projected in C. rubripes and C. kuryi n. sp. (Fig. 109), strongly projected in C. nitens and C. caatinga n. sp. (Fig. 65). CO generally medially placed (Figs. 52, 80, 107), anteriorly placed in C. demersa n. sp. and C. maracas n. sp. (Figs. 92, 96, 103), posteriorly placed in C. rubripes, C. nitens and C. kuryi n. sp. (Fig. 109). CD ventrally visible in C. rubripes, C. demersa n. sp. and C. caatinga n. sp. (Figs. 65, 92). SS ventrally visible, except in C. caatinga n. sp. (Fig. 65). PS and SS partially covered by PVP (Figs. 53, 77, 86, 106), in C. caatinga n. sp. PVP covers only primary spermathecae (Fig. 66); PVP well developed. SS generally globular, with unsclerotized apex; ovoid in C. tranquilla n. sp. (Fig. 81) and in irregular C. caatinga n. sp. (Fig. 66); PS globular, smalller than SS, dorsally visible through PVP fenestrae (Figs. 61, 77, 81, 108). FD small, generally curved inward toward anterior end of epigynum (Figs. 53, 77, 97, 110).