Macutula aracoiaba, Ruiz, Gustavo Rodrigo Sanches, 2011

Ruiz, Gustavo Rodrigo Sanches, 2011, Description of Macutula, a new genus of jumping spiders from Northeastern Brazil (Araneae: Salticidae: Amycoida), Zootaxa 2785, pp. 53-60 : 56-58

Macutula aracoiaba sp. nov.

Figs 1 –22

Type material: Holotype: male from Campo de Instrução Marechal Newton Cavalcante, Araçoiaba , Pernambuco, Brazil, coordinates -7.781944, -35.150556, 2009–2010, A.A. Costa ( IBSP 160499). Paratypes: 1 female, same data as holotype ( IBSP 160500), and 1 male and 1 female, same data as holotype ( UFPE).

Additional material examined. BRAZIL: Pernambuco: 5 males and 11 females, Araçoiaba , Campo de Instrução Marechal Newton Cavalcante, 2009–2010, A.A. Costa ( IBSP 160498, 160501 – 160506, 160740 – 160745, UFPE).

Etymology. The specific epithet is a toponymic name in apposition.

Diagnosis. Males of this species differ from those of the other two by having a curling embolus slightly longer than 2.25 turns around the bulb in the male palp, and having the sperm duct loop on the proximal, prolateral region of the tegulum ( Fig. 3 ). Females can be distinguished from those of M. caruaru sp. nov. by the longer copulation duct, best noticed at the posteriormost region, where the membranous portion becomes the sclerotized portion ( Fig. 10 ).

Description. Male holotype: Total length: 4.40. Carapace dark brown, glabrous, 2.20 long, 1.60 wide, 1.10 high ( Fig. 1 ). Ocular quadrangle 1.12 long. Anterior eye row 1.50 wide and posterior 1.40 wide. Chelicera, endite, labium and sternum dark brown. Palp dark brown. Legs I and II dark brown, with proximal half of metatarsi and entire tarsi yellow (Figs 15–16), III with coxa and trochanter light brown, femur dark brown with a median dorsal light area, patella and tibia dark brown, metatarsus yellow with proximal and distal portions dark brown and tarsus yellow (Fig. 17), IV with coxa and trochanter light brown, femur and patella dark brown, tibia yellow with proximal and distal portions dark brown, metatarsus yellow with distal dark brown portion and yellow tarsus (Fig. 18). Length of femur: I 1.40, II 1.10, III 1.45, IV 1.25; patella + tibia: I 1.90, II 1.30, III 1.40, IV 1.32; metatarsus + tarsus: I 1.30, II 0.95, III 1.15, IV 1.25. Abdomen dorsally dark brown, variegated, with anterior white border and a median, longitudinal light brown stripe between a pair of longitudinal narrow stripes of white scales ( Fig. 1 ); ventrally dark brown, variegated. Spinnerets dark brown.

FIGURES 15–18. Macutula aracoiaba sp. nov. 15– 18 male legs, prolateral (15 I, 16 II, 17 III, 18 IV).

Female (paratype IBSP 160500): Total length: 5.55. Carapace dark brown, glabrous, 2.35 long, 1.77 wide, 1.10 high ( Fig. 2 ). Ocular quadrangle 1.30 long. Anterior eye row 1.62 wide and posterior 1.57 wide. Chelicera, endite, labium and sternum dark brown. Palp light brown. Leg coxae and trochanters light brown; Legs I and II yellow, with femora, distal portions of patellae, tibiae and metatarsi and proximal portion of tibiae dark (Figs 19–20); III and IV yellow, with femora and distal portion of patellae dark brown (Figs 21–22). Length of femur: I 1.25, II 1.15, III 1.55, IV 1.35; patella + tibia: I 1.65, II 1.35, III 1.50, IV 1.45; metatarsus + tarsus: I 1.15, II 1.00, III 1.22, IV 1.40. Abdomen dorsally dark brown, variegated, with white anterior border and two pairs of lateral light spots, light longitudinal dorsal stripe interrupted at the middle and a pair of narrow, paramedian stripes ( Fig. 2 ); ventrally dark brown. Spinnerets dark brown.

Variation. Some females examined have an elliptical atrium on the epigyne, similar to that of the paratype of M. caruaru sp. nov. ( Fig. 27 ), with no posterior prolongation of the atrium as that of the paratype of M. aracoiaba sp. nov. described ( Fig. 9 ).

Distribution. Known only from the State of Pernambuco, Brazil.

Biological note. The specimens mentioned above were collected from the ground using a pitfall trap.

FIGURES 19–22. Macutula aracoiaba sp. nov. 19– 22 female legs, prolateral (19 I, 20 II, 21 III, 22 IV).

Figures

FIGURES 1 – 2. Macutula aracoiaba sp. nov. 1 male habitus; 2 female habitus.

FIGURES 3 – 10. Macutula aracoiaba sp. nov. 3 – 8 left male palp, (3 ventral, 4 retrolateral, 5 dorsal, 6 prolateral, 7 anterior view, 8 clarified bulb, ventral view); 9 epigyne, ventral view; 10 vulva, dorsal view.

FIGURES 23 – 28. Macutula santana sp. nov. 23 – 24 left male palp (23 ventral, 24 retrolateral). Macutula caruaru sp. nov. 25 – 26 left male palp (25 ventral, 26 retrolateral); 27 epigyne, ventral view; 28 vulva, dorsal view.