1976] 
Carico — Spider Genus Tinus 
15 
Diagnosis. See the diagnosis of T. tibialis for a comparison with 
the similar male palpus. The epigynum and internal copulatory 
apparatus resembles most that of T. peregrinus , and one should 
consult the diagnosis of the latter species for a comparison. 
Description: Carapace: length of male 7.1 mm, length of fe- 
male 7.3 mm; broad, dark, median band; wide, submarginal light 
bands. Legs: (2-l)-4-3. Abdomen: median band with typical 
shape (Fig. 6). MALE. Pedipalp: (Figs. 16, 17) tibial apophysis 
arises dorsally, divides into two distinct parts, one part a dorsal 
curved spur, other flattened part bends laterally; conductor broad, 
curved apically; median apophysis rounded, conspicuous, semi- 
transparent, widest apically; tegulum with 6 distinct lamellae; cym- 
bium with no distinct elevations on prolateral margin. FEMALE. 
Epigynum: (Fig. 28) lateral elevations large, elongated, in contact 
with each other; median elevation small, elongated, free, located 
anteriorly between lateral elevations. Internal copulatory appa- 
ratus; (Fig. 29) bursae copulatrix narrow, nearly parallel, arises 
anteriorly; fertilization tubes a series of conjoined transparent, 
flexible lamellae coiled against a central core. 
Natural History. No data available. 
Distribution. Known only from the type locality. 
Material examined. One male, one female, one juvenile (type 
collection). 
Tinus ursus new species 
Figures 7, 30, 31 
Types. A female holotype, five female paratypes, and four juve- 
niles from Rincon de Osa, Costa Rica, 27 February 1967, collected 
by Carlos E. Valerio. Holotype deposited in the Museum of Com- 
parative Zoology, and paratypes deposited in the Museo de Zoologi- 
ca, University of Costa Rica. 
Figures 8-17, Male palpi of species of Tinus. Figs. 8-9, T. nigrinus F. Pickard- 
Cambridge, right palpus. 8, Ventral view. 9, Prolateral view. Figs. 10-11, T. pere- 
grinus (Bishop), right palpus. 10, Ventral view. 1 1, Prolateral view. Figs. 12-13, T. 
tibialis F. Pickard-Cambridge, left palpus. 12, Ventral view. 13, Prolateral view. 
Figs. 14-15, T. minutus F. Pickard-Cambridge, right palpus. 14, Ventral view. 15, 
Prolateral view. Figs. 16-17, T. palictlus n. sp., right palpus. 16, Ventral view. 17, 
Prolateral view. 
Note the exposed embolus tip in Figs. 12 & 13. Normally it is contained in a con- 
cavity behind the conductor. 
