Iamarinus fenax (Kury, Pinto-da-Rocha & Carvalho in Kury, Pinto-da-Rocha, Gruber & Carvalho, 2018 )

Iamarinus fenax (Kury, Pinto-da-Rocha & Carvalho in Kury, Pinto-da-Rocha, Gruber & Carvalho, 2018) gen. et comb. nov.

( Figs 22–23 View Figure 22 )

• Discocyrtus fenax Kury View in CoL , Pinto-da-Rocha & Carvalho in Kury, Pinto-da-Rocha, Gruber & Carvalho 2018: 367.

Type data

Discocyrtus fenax : ♂ holotype ( MZSP 18158 View Materials , examined) from BRAZIL, state of Santa Catarina, close to road BR470 , near Itajaí ; ♂ paratype ( SMF RI 812 About SMF ) from BRAZIL, state of Santa Catarina, Joinville .

Records

Without further literature records.

Diagnosis

Iamarinus fenax View in CoL can be distinguished from I. pontesi View in CoL due to: (1) Scutal area I with two pairs of paramedian conspicuous tubercles ( Kury et al. 2018b: fig. 10A); (2) Cx IV prodorsal distal apophysis with distal portion forming a 90° angle in relation to the longitudinal axis ( Kury et al. 2018b: fig. 10A); (3) Cx IV prodorsal distal apophysis elongated, bent centrad and distally sinuous ( Kury et al. 2018b: fig. 10A); (4) Cx IV prodorsal distal apophysis without a secondary branch ( Kury et al. 2018b: fig. 10D); (5) Fe IV sub-straight ( Kury et al. 2018b: fig. 10E); (6) Ti IV with an apical regular spine on retroventral face ( Kury et al. 2018b: fig. 10H).

Non-type material examined

BRAZIL: state of Santa Catarina: Blumenau : 5 ♂ ( MZSP 36268 View Materials ), iii.1987, Gofferjé, C.N. leg. ; 1 ♂ 3 ♀ ( MHNCI 6305 View Materials ) , 2 ♂ 4 ♀ ( MZSP 36294 View Materials ), i.1988, Gofferjé, C.N. leg. ; 2 ♂ 1 ♀ ( MHNCI 6348 View Materials ), Centro , iii.1987, Gofferjé, C. N. leg. Penha : 1 ♂ 3 ♀ ( MHNCI 6822 View Materials ), Armação , i.1989, Gofferjé, C. N. leg. ; 8 ♂ 14 ♀ 2 juv ( MZSP 36288 View Materials ), idem, xii.1969, Gofferjé, C.N. leg.

Distribution (new records with an asterisk)

BRAZIL: state of Santa Catarina: Blumenau*, Itajaí, Joinville, Penha* ( Fig. 21 View Figure 21 ).

Male’s redescription

See the original description in Kury et al. (2018b).

Female description

( MHNCI 6305) ( Figs 22–23 View Figure 22 ). DS, measurements: CW 2.9, CL 2.2, AW 5.3, AL 3.3; Leg I–IV measurements in Table 13 View Table 13 ; Right/left tarsal (distitarsal) counts: 6(3)/6(3) - 9(3)/9(3) - 7/7 - 7/7. DS lambda ( Figs 22A View Figure 22 , 23C). Ocularium elliptical (in dorsal view), high (c. 2.5× the eye diameter), perpendicularly placed on the central portion of the carapace ( Figs 22A, D View Figure 22 , 23B–C). Ocularium with a pair of divergent spines (c. 3× the eye diameter) ( Figs 22A, D View Figure 22 , 23B–C). AS lateral margins with one spiniform apophysis at scutal areas II– III ( Figs 22A–B View Figure 22 , 23C). Scutal area III with a paramedian pair of subconical spines ( Figs 22A–B, D View Figure 22 , 23C). Scutal area IV with ordinary tubercles ( Figs 22A–B View Figure 22 , 23A–C). Cx IV narrower than males, with the prodorsal distal apophysis reduced to a single spine and a reduced retroventral distal apophysis ( Figs 22A, C–D View Figure 22 , 23C). Tr IV prodorsal distal half and prolateral entire length portions with prominent tubercles ( Figs 22A, C View Figure 22 , 23D). Tr IV with a proximal and a distal conical apophysis (distalmost largest) on retrolateral face, with a reduced conical apophysis on the central portion ( Figs 22C View Figure 22 , 23D–E). Fe IV straight and thinner than the males ( Figs 22A, C–D View Figure 22 , 23D–E). Fe IV dorsal face with four spines (one on proximal third, two on central third and one on distal third) ( Figs 22A, D View Figure 22 , 23D). Fe IV prolateral face with a row of acuminated tubercles ( Fig. 23D–E). Fe IV proventral and retroventral faces with a row of acuminated tubercles on the proximal half and three–four conical spines on distal half ( Fig. 23E). Fe IV retrolateral face with a row of conical spines (iiiI on the proximal half, Iii on the distal half) ( Fig. 23D–E).

Intraspecific variation: Some variations among minor morph males and major morph males were detected: (1) DS narrower; (2) Cx IV prolateral and retrolateral apophyses reduced; and (3) Fe IV thinner, with reduced proximal spines. Variation among major morph males: the Fe IV torsion, which can be more or less prominent. No relevant intraspecific variation among females was detected in the material studied.