1976] 
Carico — Spider Genus Tinus 
67 
The epigynum of both T. nigrinus and T. palictlus share the similar 
characteristic of a small, free, anterior median elevation. The length 
of the bursae copulatrix, as seen ventrally, provides the surest separa- 
tion of the females of these two species. 
Description. Carapace : average length of males 6.4 mm (6.0- 
7.9, N=4), average length of females 5.73 mm (4. 5-6. 7, N=18); broad, 
dark, median band; light submarginal bands. Legs: (l-2-4)-3. Ab- 
domen: median band with typical shape (Fig. 1). Male. Pedipalp: 
(Figs. 8, 9) tibial apophysis broad, arises apically on dorsal side, 
bends laterally, terminates in two tubercles; conductor narrowed 
apically; median apophysis rounded, conspicuous, semitransparent, 
widest apically; tegulum with 5 distinct lamellae; cymbium with 
distinct tubercle on polateral margin near base of conductor. 
FEMALE. Epigynum: (Fig. 18) lateral elevations hemispherical, 
broadly in contact; median elevation free, anterior to lateral eleva- 
tions. Internal copulatory apparatus: (Fig. 19) bursae copulatrix 
located in anterior half of epigynum; fertilization tubes series of con- 
joined, transparent, flexible lamellae, coiled around a central core. 
Natural History. Biological data are almost completely absent 
from labels with museum specimens. The only reference is to 
Map 1 . Distribution of Tinus nigrinus F. Pickard-Cambridge. 
