Scytodes mapia, Rheims & Brescovit, 2000

Rheims, Cristina A. & Brescovit, Antonio D., 2000, Six new species of Scytodes Latreille, 1804 (Araneae, Scytodidae) from Brazil, Zoosystema 22 (4), pp. 719-730 : 728-729

Scytodes mapia n. sp.

( Fig. 4 D-F)

TYPE MATERIAL. — Rio Mapiá. Borba, Amazonas, 22.IV.1996, Eq. IBSP / SMNK, 1 holotype ( IBSP 8835).

Balneário do Lira. Borba, Amazonas, 22.IV.1996, Eq. IBSP / SMNK, 2, 1 juv. paratypes ( IBSP 7928 ; SMNK) .

ETYMOLOGY. — The specific name is a noun in apposition taken from the type locality.

MATERIAL EXAMINED. — Rio Mapiá. Borba, Amazonas, 22.IV.1996, Eq. IBSP / SMNK, 1 ( IBSP 8858).

Manicoré. 18.IV.1996, Eq. IBSP / SMNK, 1 ( IBSP 8878).

Fazenda Jacarandá. Itamarajú, Bahia, 9.XII.1977, J. S. Santos, 1 (CPDC).

Pindamonhangaba. São Paulo, 8-10.IV.1998, R. Martins & I. Knysak, 1 (IBSP 20242).

DISTRIBUTION. — Northern, northeastern and southeastern Brazil.

DIAGNOSIS. — The female of Scytodes mapia n. sp. is similar to S. auricula n. sp., but differs in the presence of a triangular fovea that does not project anteriorly ( Fig. 4E ) and in the semicircular shape of the larger pair of seminal receptacles ( Fig. 4F ).

DESCRIPTION

Male

Unknown.

Female (IBSP 8835)

Carapace cream coloured with brown pattern as in Figure 4D . Pedipalps cream coloured with brown longitudinal stains and transversal bands.

Labium and endites cream coloured with brown margins. Sternum cream coloured with brown margins at base of each leg and along slight grooves toward centre. Legs cream coloured with two transversal, very interrupted longitudinal ventral stripes on femur and tibia. Few longitudinal stains along metatarsus. Abdomen cream coloured with same basic pattern as Scytodes auricula n. sp. ( Fig. 3A ).

Total length 5.75. Carapace slightly arched, 2.75 long, 2.25 wide. Eye diameters: pme 0.18, ale 0.16, ple 0.18. Lateral eyes on tubercle.

Chelicerae with subapical hyaline keel, lateral surface with eight to ten stridulatory ridges.

Labium 0.26 long, 0.20 wide. Sternum 1.38 long, 0.88 wide.

Abdomen 3.00 long, 2.50 wide. Positioning ridge striated. Fovea separated from each other byhalf their width ( Fig. 4D ). Internal genitalia with two pairs of globous seminal receptacles; one semicircular and very large, the other globous and small, both with inconspicuous stalks ( Fig. 4E ).

Legs. I, femur 5.50; patella 0.63; tibia 6.13; metatarsus 7.00; tarsus 1.00; total 20.26. II, 4.00; 0.50; 3.88; 4.50; 0.63; 13.51. III, 2.75; 0.50; 2.38; 2.63; 0.63; 8.89. IV, 4.50; 0.63; 3.88; 4.38; 0.88; 14.27. Palpal femur presenting very short stridulatory pick with round, projected socket.

Variation

Four females. Total length 4.00-5.75; carapace 2.50-3.38; femur I 3.13-6.25.

Figures

FIG. 4. — A-C, Scytodes vieirae n. sp.; A, male body, dorsal view; B, male left palpus, retrolateral view; C, male left palpus, prolateral view; D-F, Scytodes mapia n. sp.; D, female carapace, dorsal view; E, female epygine, ventral view; F, female epygine, dorsal view; G, H, Scytodes altamira n. sp.; G, male left palpus, retrolateral view; H, male left palpus, prolateral view. Scale bars: 0.25 mm.

FIG. 3. — Scytodes auricula n. sp.; A, female body, dorsal view; B, male left palpus, retrolateral view; C, male left palpus, prolateral view; D, female epygine, ventral view; E, female epygine, dorsal view. Scale bars: 0.25 mm.