Mesabolivar embapua Machado, Brescovit & Francisco, 2007, n. sp.
Creators: name: Machado, Éwerton O.
name: Brescovit, Antonio D.
name: Francisco, Rafael C.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Pholcidae
Mesabolivar
Mesabolivar embapua

description: Mesabolivar embapua n. sp.
(Figs. 19–28)
Types. Male holotype from Parque Natural Municipal Nascentes do Ribeirão Garcia (27o01’– 27o06’ S; 49o04’– 49o10’ W; 290–910 m), Blumenau, Santa Catarina, Brazil, 24.X.2004, R.C. Francisco col. with pitfall traps, deposited in IBSP 62442. Paratype: 1 female, same data as holotype, 18.IV.2004 (IBSP 62443).
Etymology. The specific name is a compound noun in apposition, derived from the Tupi Indian words “ embé ” (superior lip) and “ apuá ” (pointed).
Diagnosis. The males can be distinguished from the congeneric species by the presence of a pair of large and long apophyses on the chelicerae (Figs. 20–22) combined with the procursus shape (Figs. 23–24), with a dorsal apophysis bent to the retrolateral face (Figs. 23–24) and two terminal spines. The female can be distinguished by a projected epigynal plate with a pair of long diverging apophyses, combined with a small rounded pocket (Figs. 26–27).
Description. Male (Holotype): Total length 1.5, carapace width 0.8; leg I: 7.2 (1.8 + 0.3 + 1.9 + 2.6 + 0.6), tibia II: 1.1, tibia III: 1.0, tibia IV: 1.9, tibia I L/d: 24. Habitus as in fig. 19. Carapace light brown; sternum light ochre. Distinct thoracic groove. Eight eyes in an ocular area only slightly more elevated than carapace (Fig. 19); distance PME–ALE about 83% of PME diameter. Chelicera uniformly light brown, basal segment of chelicera with one large and long apophysis with curved tip, approximately perpendicular to the chelicera (Figs. 20–22). Palp as in fig. 23. Palpal coxa with a very pointed retrolateral apophysis (Fig. 23). Femur proximally with a small rounded retrolateral apophysis (Fig. 23). Procursus brown, broad, with a dorsal apophysis bent to the retrolateral face in the distal portion (Figs. 23–24), without prolateral hairs. Distinct tip of procursus, ending in two terminal spines (Figs. 23–24). Bulb simple, with a small transparent projection, embolar division of bulb slender and membranous at the end (Fig. 25). Legs light brown; without spines, vertical or curved hairs. Tarsus I with approximately 11 pseudosegments. Opisthosoma globular, pale green, with some lateral bluish spots (Fig. 19).
Female. (Paratype): Total length 1.7, carapace width 0.8; leg I: 8.1 (2.0 + 0.3 + 2.1 + 2.9 + 0.8), tibia II: 1.1, tibia III: 1.0, tibia IV: 1.8, tibia I L/d: 18. In general appearance very similar to male. Tarsus I with approximately 12 pseudosegments. Epigynum light brown, very elevated, with a pair of ventral prominent divergent projections and with a small oval median pocket, extending internally into a blind wall seen through the translucent integument (Figs. 26–27). Internal genitalia with two oval pore plates (Fig. 28).
Other material examined. None.
Distribution. Known only from type locality.
description: Published as part of Machado, Éwerton O., Brescovit, Antonio D. & Francisco, Rafael C., 2007, Three new ground dweller Mesabolivar González-Sponga, 1998 (Araneae: Pholcidae) from Blumenau, Santa Catarina, Brazil, pp. 55-61 in Zootaxa 1560 on page 59, DOI: 10.5281/zenodo.178315