Aguaytiella maculata Goodnight & Goodnight, 1943

Hara, Marcos Ryotaro, Pinto-Da-Rocha, Ricardo & Villarreal, Osvaldo, 2014, Revision of the cranaid genera Phalangodus, Iquitosa and Aguaytiella (Opiliones: Laniatores: Gonyleptoidea), Zootaxa 3814 (4), pp. 567-580 : 572-574

Aguaytiella maculata Goodnight & Goodnight, 1943

( Figs 12–13 , 16–19 )

Aguaytiella maculata Goodnight & Goodnight, 1943: 6 , figs 14–16 (dorsal habitus; left pedipalp, retrolateral; distal femur IV, prolateral; respectively); Soares & Soares, 1948: 586 (catalogue); Kury 2003: 90 (catalogue).

Material examined. PERU. Ucayali: Rio Aguaytia, ma holotype, 1 ma & 1 fe paratypes of A. maculata ( AMNH); Padre Abad, Boquerón del padre Abade (5°03’53”S, 75°38’25”W, 402 m), J.R. Ochoa & R. Gutierrez leg., 1 ma & 2 fe ( MHNC).

Diagnosis. Same as the genus.

Redescription. Male (MHNC): Dorsum ( Figs 12–13 ): Measurements: DSL 7.5; DSW 7.4; CL 4.7; CW 5.4; PF 5.3; FIV 14; LI 22; LII 44.5; LIII 32; LIV 44.5. Anterior margin of carapace with 5–6 tubercles on each side, two of them in front of the ocularium, the remaining carapace smooth. Ocularium enlarged and conspicuous, with a pair of high (more than three times the eye diameter), slightly frontwards spines. One ozopore (anterior opening), covered by integumentary dome with slit-like opening. Lateral margin of dorsal scutum smooth. Scutal area I divided in left and right halves, triangle shaped, each one with 3 tubercles; area II with 2 tubercles; area III with a paramedian pair of moderately high (up to three times the eye diameter), parallel and backwards directed spines, 2 tubercles near scutal groove IV. Posterior margin of dorsal scutum with 5–6 tubercles. Free tergites I with 6–7 small tubercles on each side; II with 6 tubercles on each side, a paramedian pair of moderately high (up to three times the eye diameter) spines; III with a row of 17 tubercles. Anal operculum irregularly tuberculate.

Venter: Coxa I–III tuberculate; I with a median row of 9 large tubercles, 2 distal large tubercles; IV with a few small scattered tubercles; posterior margin of stigmatic sternite and free sternites each with a row of tubercles.

Chelicera: Segment I–II slightly enlarged. Segment I with 7–8 tubercles on bulla, basal ones largest; segment II with several frontal tubercles, fixed finger with 5 teeth; movable finger with 3 wide teeth.

Pedipalp ( Figs 16–17 ): Coxa with 3 ventral tubercles, dorsally smooth. Trochanter dorsally inflated with 3 tubercles, ventrally with 5 tubercles (apical largest). Femur cylindrical, with a dorsal row 6–7 tubercles, 1 dorsodistal enlarged spiniform tubercle, a retrolateral row of 7 tubercles, a ventral row of 9 enlarged, spiniform tubercles. Patella dorsolaterally tuberculate. Tibia dorsally tuberculate, with two medioventral rows of small setae; tibial setation: mesal and ectal IiIi (subdistal seta socket conspicuously long on the ectal face). Tarsus dorsally tuberculate, with 9 ventral tubercles; tarsal setation: mesal and ectal IiIi. Claw normal (not thickened).

Legs: Coxa I dorsally with 1 anterior, 1 slightly enlarged posterior apophysis; coxa II with 1 prolateral enlarged apophysis in front of ozopore, 1 low, wide posterior apophysis near coxa III; coxa III with 1 anterior, 1 posterior apophyses directed anteriorly and posteriorly, respectively; coxa IV dorsolaterally tuberculate, with 1 prodorsal apical short, spiniform apophysis. Trochanters–tibiae I–IV tuberculate. Trochanter I with 3 ventral large tubercles; trochanter II with large dorsal tubercle; trochanters II–IV with 1 retrolateral apical enlarged tubercle; trochanter IV with prodorsal submedian enlarged tubercle and a few slightly enlarged tubercles on retrolateral face. Femora III–IV dorsoapically with a prolateral and a retrolateral (largest) enlarged, pointed tubercles; femur IV with a retrobasal enlarged tubercle; a proventral subapical, strongly curved back, enlarged spine, 2 retrolateral large tubercles in the distal part of the middle third (distal largest). Tarsal segmentation 9, 18, 12, 13–14.

Penis ( Figs 18–19 ): Ventral plate sub-hexagonal with convex sides, wide and shallow V-shaped cleft on distal margin, a distal pair of long, straight setae, 4 subdistal pairs of short, unbranched (sometimes bifid) setae, 2 median pairs of long, straight setae. Glans basally unconstrained with folds (more conspicuous in lateral view). Stylus smoothly curved dorsally, without stylar caps.

Coloration ( Figs 12–13 ): Most of the body brown, carapace darker, especially the region around scutal groove I. Large tubercles on free tergite II yellowish. Tubercles on dorsal scutum (except anterior margin), sides of free tergites I–III and free sternites I–II with a circular white patch. White patches on scutal areas I–III enlarged and touching each other. Metatarsus IV with light brown rings.

Female (MHNC). Measurements: DSL 7.1; DSW 6.8; CL 3.8; CW 4.8; PF 4.3; FIV 13; LI 20.5; LII 42; LIII 31.5; LIV 42.5. Chelicera: Segment I–II of normal size (not enlarged). Coxa IV with prodorsal apical short apophysis shorter than in male, inserted transversally (in relation to the body main axis). Trochanter IV retrolaterally with 1 median and 1 apical slightly enlarged tubercles (smaller than in males). Femur IV with retrobasal enlarged, pointed tubercle (larger than in males), without retrolateral enlarged tubercles. Tarsal segmentation 8–9, 16, 11, 12–13.

Variation in females (n= 2): Measurements: DSL 6.65–7.1; DSW 6.6–6.8; LI 19.25–20.5; LII 39.65–42; LIII 28.95–31.5; LIV 39.0–42.5. Trochanter IV enlarged tubercles may vary from the form described in the male to that of the described female. Tarsal segmentation: 8–9, 16–18, 10–11, 12–13.

Figures

FIGURES 12 – 15. Photographs of males. 12 – 13, dorsal and left lateral views of habitus of Aguaytiella maculata Goodnight & Goodnight, 1943 (MHNC). 14 – 15, dorsal and left lateral views of habitus of Iquitosa poecilis Roewer, 1943 (MUSM-ENT 0505862). Scale bars: 2 mm.

FIGURES 16 – 19. Aguaytiella maculata Goodnight & Goodnight, 1943. Male (MHNC). 16, retrolateral view of left pedipalp; 17, prolateral view of left pedipalpal tibia – tarsus. 18 – 19, penis left lateral and dorsal views. Scale bars: 16 – 17, 2 mm; 18 – 19, 0.1 mm.