Filistatoides xichu, Brescovit, Antonio D., Ruiz, Alexander Sánchez & Garcia, Giraldo Alayón, 2016

Brescovit, Antonio D., Ruiz, Alexander Sánchez & Garcia, Giraldo Alayón, 2016, The Filistatidae in the Caribbean region, with a description of the new genus Antilloides, revision of the genus Filistatoides F. O. P. - Cambridge and notes on Kukulcania Lehtinen (Arachnida, Araneae), Zootaxa 4136 (3), pp. 401-432 : 410-411

Filistatoides xichu new species

Figs 7 , 8H‒J , 22 A

Type. Holotype male from Xichú , Guanajuato, Mexico, 30.V.1999, J. L. Castelo col. ( CNAC T0881).

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

Diagnosis. Males of Filistatoides xichu n. sp. can be distinguished from remaining species by the very long tibia and acute paraembolic lamina in the male palp ( Figs 7C‒D , 8I ).

Description. Male (Holotype). Carapace yellow, with lateral margins and eye area black. Eyes encircled in black. Chelicerae orange with anterior black spot. Labium and endites yellowish. Sternum white. Palp and legs yellowish, with sparse, black annulations. Abdomen dorsally cream with 5–6 black chevrons, laterally and ventrally white ( Fig. 7A ). Total length 2.5. Carapace length 1.7, width 1.0. PME separated by their diameter. Palp measurements: femur 1.1 long, patella 0.4 long, tibia 0.8, long, 0.3 wide. Leg measurements: I femur 2.2/ patella 0.4/ another articles lacking; II 1.4/ 0.4/ 1.6/ 1.5/ 0.7/ 5.6; III 1.1/ 0.5/ 0.8/ 0.9/ 0.6/ 3.9; IV 1.4/ 0.7/ 1.0/ 1.4/ 0.8/ 9.2. Palpal tibia almost two times the length of the bulb, not enlarged in distal area ( Figs 7B‒D , 8H‒J ). Embolus sinuous with elongate ventral furrows (Fig. 95). Abdomen 1.5 long.

Female. Unknown.

Other material examined. None.

Natural history. The specimen was collected by hand in an urban area.

Distribution. Known only from Guanajuato, Mexico ( Fig. 22 A).

Figures

FIGURE 22. Maps showing records of filistatid species from Caribbean: A. Filistatoides insignis (black squares), F. xichu n. sp. (black diamond), Antilloides cubitas n. sp. (black circle), A. haitisis n. sp. (black and white squares), A. zozo n. sp. (black and white circles). B. Kukulcania hibernalis; C. Filistatoides polita; D. Antilloides abeli n. sp. (black squares), A. mesoliticus n. sp. (black circle).

FIGURE 7 A ‒ D. Filistatoides xichu n. sp. A. Habitus dorsal, male (Holotype). B. Male bulb. C. Male palp, prolateral. D. Same, retrolateral.

FIGURE 8 A ‒ J. A ‒ D. Filistatoides insignis O. P. Cambridge, from Iztapa, Santa Rosa, Guatemala. Genitalia. A. Male palp, prolateral. B. Same, retrolateral. C ‒ D. Variation of spermathecae, dorsal view. E ‒ G. Filistatoides polita Franganillo from Dos Caminos de San Luis, Santiago de Cuba. Genitalia. E. Male palp, prolateral. F. Same, retrolateral. G. Spermathecae, dorsal. H ‒ J. Filistatoides xichu n. sp. (Holotype), male palp. H. Retrolateral. I. Prolateral. J. Bulb, ventral. Abbreviations: b = receptacle base; cd = neck; r = receptacula; ue = uterus externus.