Ochyrocera charlotte, 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 : 116-119

Ochyrocera charlotte sp. n. Figures 17, 20B

Types.

Holotype male from Cave N8_0038 (6°10'24"S, 50°8'49"W), 02-29/IV/2015 (IBSP 188897) and paratype female from Cave N1_0247 (6°1'14"S, 50°16'22"W), 03-17/XII/2014 (IBSP 188896), both from Serra Norte, Floresta Nacional de Carajás Parauapebas, Pará, Brazil, Equipe Carste et al.

Other material examined.

None.

Etymology.

The specific name refers to Charlotte, the spider from the classic “Charlotte’s Web" by E.B. White and a great friend of the pig named Wilbur.

Diagnosis.

Males and females of Ochyrocera charlotte sp. n. resemble those of O. ungoliant and O. viridissima Brignoli in having a subapical cuspule in the distal area of the cymbium (Fig. 17E−F; Brignoli 1974: fig. 6) but can be distinguished from these species by their yellowish cephalic area and cream body color pattern. Males can be distinguished by their pentagonal cymbium, with cylindrical tegulum (Fig. 17 E–H). Females are diagnosed by the genitalia with a very narrow medial columnar uterus externus and an elongated and medially curved spermathecae (Fig. 17 C–D).

Description.

Male (holotype). Total length 2.3. Carapace length 0.7, ovoid; narrowing gradually anteriorly; with yellowish cephalic area, and cream pattern poteriorly, pars cephalica flat (Fig. 17A); fovea not visible. Clypeus length 0.7, curved forward. Eyes: PME elongated oval; ALE and PLE rounded. Chelicerae light yellow, promargin with eight teeth, attached to long lamina; retromargin without teeth. Sternum yellowish. Endites dark yellow. 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 narrow, same length as cymbium; cymbial apophysis not curved distally, retrolateral long hair on non-projected base, next to the tarsal organ; with a long hair; with three basal setae; cymbial prolateral extension squared; very coiled spermatic ducts, embolus elongated and flattened (Fig. 17 E–H). Abdomen length 1.3, oval; uniformly cream with dorsal light brown band (Fig. 17A). Six epiandrous spigots, with short base.

Female (paratype IBSP 188896). Total length: 2.0; carapace length: 0.74; Carapace pattern as in male (Fig. 17B). Pedipalp without claw with conical tip and subdistal trichobothria. Clypeus: 0.68 diameter; Eyes, chelicerae, sternum, endites, and labium as in male. Legs as in male; leg formula 4123, total length: I 6.3; II 4.7; III 3.6 IV4.3. Abdomen length 0.96. Colulus triangular with 8-10 bristles. Internal genitalia with weakly sclerotized, long, curved spermathecae; long medial columnar uterus externus, shorter than spermathecae, with two distal chambers. Narrow neck in the columnar uterus externus. Small oval pore-plates far from the spermathecae base, with approximately 8-10 glandular ducts (Fig. 17 C–D).

Distribution.

Recorded exclusively from two caves in the Carajás region, state of Pará, northern Brazil (Fig. 20B).