Ochyrocera laracna, Brescovit, Antonio D., Cizauskas, Igor & Mota, Leandro P., 2018

Brescovit, Antonio D., Cizauskas, Igor & Mota, Leandro P., 2018, Seven new species of the spider genus Ochyrocera from caves in Floresta Nacional de Carajas, PA, Brazil (Araneae, Ochyroceratidae), ZooKeys 726, pp. 87-130 : 104-108

Ochyrocera laracna sp. n. Figures 7, 8, 9, 20A

Types.

Holotype male from Cave N5S-15/16 (50°7'60"W, 6°6'20"S), Serra Norte, Floresta Nacional de Carajás, Parauapebas, Pará, Brazil, 14-23/X/2009, R. Andrade & I. Cizauskas et al. (IBSP 177631). Paratypes: Cave N4E_13 (6°2'18"S; 50°9'38"W), Serra Norte, Floresta Nacional de Carajás, Parauapebas, Pará, Brazil, 20/X−01/XI/2006, R. Andrade (IBSP 188898).

Other examined material.

BRAZIL. Pará: HYPOGEAN SAMPLES: Canaã dos Carajás, Floresta Nacional de Carajás, Serra Sul, Cave S11D-64 (6°23'31"S; 50°18'48"W), 2♂4♀, 13-30/I/2010 (IBSP 174071); Cave CAV_0014 (6°24'59"S; 50°19'15"W), 1♀, 22-28/IX/2010 (IBSP 174075); Cave CAV-19 (6°29'52"S; 51°9'55"W), 1♀, 08-15/III/2012 (IBSP 175981); 1♂, 20-29/VI/2012 (IBSP 175999); Cave CAV_06 (6°29'51"S; 51°9'44"W), 1♀, 08-15/III/2012 (IBSP 176047); Cave CAV_18 (6°29'50"S; 51°9'31"W), 1♀, 08-15/III/2012 (IBSP 176065); Cave CAV_03 (6°29'39"S; 51°9'48"W), 1♀, 20-29/VI/2012 (IBSP 176071); Cave CAV_06 (6°29'51"S; 51°9'44"W), 1♀, 20-29/VI/2012 (IBSP 176073), all collected by R. Andrade & I. Cizauskas et al.; Parauapebas, Cave CRIS_38 (6°27'32"S; 49°42'13"W), 1♀, 29/VII-06/VIII/2008 (IBSP 174645); collected by R. Andrade et al.; Floresta Nacional de Carajás, Serra Norte, Cave N5S_no number (6°5'16"S; 50°7'11"W), 1♀, 28/IX-03/X/2007, collected by R. Andrade & I. Arnori et al. (IBSP 191356); Cave N 5S_15/16 (6°6'20"S; 50°7'60"W), 1♂, 14-23/X/2009 (IBSP 177631), collected by R. Andrade & I. Cizauskas et al.; Cave N3_0070 (6°2'39"S; 50°13'48"W), 1♀, 03-17/IV/2013 (IBSP 178566); Cave N3_0078 (6°2'36"S; 50°13'43"W), 1♂, 03-17/ IV /2013 (IBSP 178567), all collected by Equipe Carste et al.; Cave N5SM1_0004 (-6,112018; -50,135539), 1♂, 04/IX−06/X/2014 (ISLA 14615); Cave N5SM2_0058 (6°7'46"S; 50°8'5"W), 1♂, 24/II−13/III/2015 (ISLA 14617), all collected by Bioespeleo et al.; EPIGEAN SAMPLES: Parauapebas, Floresta Nacional de Carajás, Serra Norte (6°5'15"S; 50°7'12"W), 1♀, 25/I/2012 (IBSP 191368); (6°5'16"S; 50°7'36"W), 2♀, 19/XI/2012 (IBSP 191352, IBSP 191356); (6°5'18"S; 50°7'11"W), 5♂, 25/IV-03/V/2012 (IBSP 191366, IBSP 191367, IBSP 191380, IBSP 191385), 2♂3♀, 08-14/XI/2012 (IBSP 191354, IBSP 191353, IBSP 191365); (6°5'18"S; 50°7'12"W) 1♂, 25/I/2012 (IBSP 191371); (6°5'20"S; 50°7'10"W), 2♂1♀, 08-14/XI/2012 (IBSP 191369, IBSP 191384); (6°5'20"S; 50°7'10"W), 12♂, 25/IV-03/V/2012 (IBSP 191360, IBSP 191362, IBSP 191383, IBSP 191387, IBSP 191391, IBSP 191392, IBSP 191364, IBSP 191372, IBSP 191376); (6°6'12"S; 50°7'45"W), 1♂, 26/IV-03/V/2012 (IBSP 191382) 1♀, 27/I/2012 (IBSP 191355); (6°6'17"S; 50°7'48"W), 1♂, 26/IV−-03/V/2012 (IBSP 191388); (6°6'20"S; 50°7'41"W), 1♂1♀, 16-20/XI/2012 (IBSP 191361, IBSP 191378); (6°6'20"S; 50°7'55"W), 1♀, 27/I/2012 (IBSP 191370); (6°6'22"S; 50°7'47"W), 9♂1♀, 25/IV-03/V/2012 (IBSP 191379, IBSP 191363, IBSP 191377, IBSP 191389, IBSP 191390, IBSP 191373, IBSP 191358) 2♂1♀, 16-20/XI/2012 (IBSP 191386, IBSP 191374, IBSP 191375); (6°6'24"S; 50°7'55"W), 1♀, 25/IV-03/V/2012 (IBSP 191359); all collected by I. Cizauskas & R. Andrade et al.; (6°0'59"S; 50°4'43"W), 1♂2♀, 9/III/2013 (IBSP 191396, IBSP 191402); (6°1'46"S; 50°12'4"W), 2♀, 13/X/2012 (IBSP 191400, IBSP 191401); (6°2'33"S; 50°13'23"W), 2♂, 11/III/2013 (IBSP 191397); (6°2'33"S; 50°13'6"W), 1♀, 5/III/2013 (IBSP 191399); (6°3'24"S; 50°4'49"W), 1♂, 6/III/2013 (IBSP 191403); (6°3'9"S; 50°14'31"W); 1♂, 14/III/2013 (IBSP 191398); 1♂, 12/X/2012 (IBSP 191332); all collected by Equipe Carste et al.

Etymology.

The specific name refers to Laracna, a giant and very old spider created by J. R. R. Tolkien in the classic book "The Lord of the Rings".

Diagnosis.

Ochyrocera laracna resembles O. aragogue by the yellowish-green body pattern (Figs 7 A–B; 8A−B) and by the short cymbial apophysis with two distal spurs on projections (Fig. 7 C–D), a unique character for both these Neotropical species. The male of the former species can be distinguished from the latter due to the palp having a flap at the distal area of embolus (Figs 7 C–D; 8A−B) and a laminar spur in the curved area 8F). The female is distinguished from O. aragogue by the small distal area of the spermathecae and pore plates adjacent to the spermathecae base (Fig. 7 E–F).

Description.

Male (holotype). Total length 2.2. Carapace length 0.7, ovoid; narrowing gradually anteriorly, with yellowish-green body pattern, pars cephalica flat, fovea not visible (Fig. 7A). Clypeus length 0.7, curved forward. Eyes: PME oval; ALE and PLE rounded. Chelicerae light yellow, promargin with seven teeth, attached to long lamina (Fig. 9C); retromargin without teeth. Sternum light yellow to slightly darker. Endites dark yellow suffused. Legs light yellow; formula 1423; total length: I 7.0; II 5.9; III 4.1; IV 6.5. Male palp: palpal femur length 0.4; palpal tibia enlarged medially with dorsal trichobothrium (Fig. 9A); cymbial apophysis short, bearing parallel double short cuspules at tip, retrolateral long hair next to the tarsal organ (Fig. 8C); with four basal setae (Fig. 8E) and cymbial prolateral extension squared (8A); bulb oval; embolus enlarged at base (Figs 7 C–D, 8 A–F). Abdomen length 1.3, oval; uniformly green-purplish with black spots. Six epiandrous spigots, with short base (Fig. 9B).

Female (paratype IBSP 188898). Total length 2.0; carapace length: 0.74; Carapace as in male (Fig. 7B). Pedipalp without claw, with conical tip and subdistal trichobothria. Clypeus: 0.68 diameter. Eyes, chelicerae, sternum, endites and labium as in male, serrula with more than 50 teeth (Fig. 9 E–F). Legs as in male; leg formula 4123, total length: I 6.3; II 4.7; III 3.6 IV 4.3. Abdomen length 0.96. Colulus triangular, with 8-10 bristles. Internal genitalia weakly sclerotized, spermathecae tubular, thicker at basal area and curved at middle; elongated medial columnar uterus externus, shorter than spermathecae, internally with inconspicuous chambers. Uterus externus ending in a narrow neck. Oval pore-plates at the spermathecae base, with approximately 40-50 glandular ducts (Figs 7 E–F).

Distribution.

Recorded from caves and epigean areas in the Carajás region, state of Pará, northern Brazil (Fig. 20A).