3.44. Metasarcus fellinii sp. nov.

Figs 5E, 10G, H, 19G-I, 25E, F, 31

Description.

MALE: Measurements (n =5) DSW: 4.0-4.7 (4.7); DSL: 3.8-4.3 (4.3); CL: 1.5-1.7 (1.7). FIVL: 7.4-9.0 (9.0). ChL: 1.5-1.6 (1.6). Coloration: (Fig. 25E) Most body brown. Apophysis of tergite III dark, almost black. Lateral margins of DS dark brown. Trochanters yellowish brown. Area III armature and granules of DS and free tergites I-III orange. Dorsum: (Fig. 5E) Gamma-type DSS, with concave posterior margin of DS. Anterior margin of carapace with a median elevation, covered with irregular row of granules. Ocularium slightly medially depressed, unarmed, covered with granules. Carapace densely covered with granules of different sizes along its entire length. Areas I-IV densely covered with granules of different sizes. Area I divided by a longitudinal groove; with a median pair of acuminate tubercles. Areas II and IV unarmed. Area III armed with a pair of median spines. Lateral margins of DS densely granular, the granules being slightly more robust to those of carapace and areas. Posterior margin of DS and free tergites I-II with a row of granules similar to those on lateral margins of DS. Free tergite III with a large arched apophysis, apically forked, directed posteriorly, covered with small granules at base. Chelicerae: (Fig. 5E) Slightly larger than those of females. Segment I covered with small granules. Segment II with 3-4 small granules; finger with three teeth. Segment III with four teeth. Pedipalpus: With granules irregularly distributed over the entire length, except tibia and tarsus. Trochanter with a ventroapical spine. Femur with a small ventroapical setiferous tubercle; a ventral row of four spines along its length and a proapical spine. Patella with a proapical spine. Tibia retrolateral IiII, prolateral iIIIi/iiIi. Tarsus: retrolateral Iii/iIiIi/iiII, prolateral II. Venter: Coxae I-IV densely covered of granules. Coxa I with a median row of 3-4 small setiferous tubercles. Genital area with a few sparse granules. Free sternites I-IV with a row of small tubercles. Legs: (Figs 5E, 10G, H) Coxae I-II each with a prolateral and a retrolateral apophysis. Coxa III with a prolateral apophysis. Coxa IV with a dorsoapical row of seven small tubercles; two small retrolateral tubercles and granules of varied sizes throughout its extension. Trochanters I-II smooth. Trochanters III-IV with a dorsoapical wide base blunt tubercle. Femora I-III straight and unarmed, with small granules. Femur IV slightly curved and unarmed, granular. Tarsal segmentation: (n =5) 6-8 (8), 9-11 (11), 7-8 (8), 8-9 (8). Penis: (Fig. 19G-I) VP subrectangular, with parallel sides; distal margin straight; straight in lateral view; VP with two distal lateroventral depressions. MS C1-C4 apical long and straight; MS A1 median long and straight (about half the length of the MS C); MS B1-B2 sub basal short and straight (MS B2 longer than MS B1); MS D1 short and straight, dorsally placed, near MS C4. Lateral sacs short, with short T3-like microsetae. Stylus with projections at the apex and an armed projection directed ventrally. Dorsal process short and blunt. Promontory truncated. - FEMALE: Measurements (n =10) DSW: 3.5-4.0; DSL: 3.5-4.1; CL: 1.2-1.5. FIVL: 6.6-7.2. ChL: 1.2-1.8. (Fig. 25F) Chelicerae slightly smaller. Granules in dorsal scutum denser concentrated than in male. Apophysis of free tergite III short, spiniform. Tarsal segmentation: (n =10) 6, 7-11, 7-9, 8-9

Diagnosis.

It differs from other species of the genus because males present an extremely long apophysis in free tergite III with forked apex (Fig. 5E). The females have short and simple apophysis, and are similar to Metasarcus bolivianus (whose male is unknown). It differs from M. bolivianus to present a greater density of granules in the dorsal scutum (Fig. 25F) and being smaller.

Derivation nominis.

The specific epithet of masculine gender, in the genitive form, dedicated to the Italian filmmaker and screenwriter Federico Fellini (1920-1993).

Distribution.

(Fig. 31) BOLIVIA. Tarija. Near Entre Ríos .

Material examined.

Type material: Holotype ♂, ' BOLIVIA, Tarija, near Entre Ríos, Paraiso del Tordo, 21°35′54.7″S 64°08′58.4″W, 05/XII/2010, R. Pinto-da-Rocha, A. Benedetti, J. Ochoa & A. Saravia leg. (CBF) - Paratypes 1 ♂, 5 ♀, ‘ditto’ (CBF); Paratypes 3 ♂, 5 ♀, ‘ditto’ (MZSP 36987).