70 
Psyche 
[March 
Tinus tibialis F. Pickard-Cambridge 
Figures 3, 12, 13, 22, 23 
Tinus tibialis F. Pickard-Cambridge, 1901, Biol. Centrali- America, no. 2:310, 31 1, pi. 
30, figs. 10, 10a, 10b, 11. Male holotype and female paratype from Cuernavaca, 
Mexico in British Museum (Natural History), examined. Roewer, 1954, Katalog 
der Araneae, 2: 142. Bonnet, 1959, Bibliographia Araneorum, 2:4622. 
Diagnosis . Only T. tibialis and T. palictlus have a bifid tibial 
apophysis with a conspicuous, dorsal spur. The two are distin- 
guished by the number of lamellae on the tegulum; three for T. 
tibialis and six for T. palictlus. The epigynum alone has a small, 
hood-like median elevation that arises from a large atrium which 
widely separates the median from the lateral elevations. 
Description. Carapace : length of one male 5.5 mm, length of 
one female 6.0 mm; broad, dark, median band; light submarginal 
bands. Legs : (4-2-1 )-3. Abdomen : median band with typical 
shape (Fig. 3). Male. Pedipalp : (Figs. 12, 13) tibial apophysis 
arises dorsally and divided into two distinct parts, one part a dorsal 
curved spur, knobbed on tip, and a flattened part which bends la- 
terally; conductor broad apically; median apophysis rounded, con- 
spicuous, semitransparent, widest apically; tegulum with three dis- 
tinct lamellae; cymbium with no distinct elevations on prolateral 
margin. Female. Epigynum : (Fig. 22) lateral elevation hemi- 
spherical, not in contact with each other; small hood-like median ele- 
vation arises from large median cavity located anterior to lateral 
elevation. Internal copulatory apparatus’. (Fig. 23) bursae copu- 
latrix large, occupying space in posterior and anterior part of epi- 
gynal area; fertilization tubes looped, relatively short, located in 
posterior region of epigynal area. 
Natural History. No data available. 
Distribution. Known only from type locality. 
Material examined. One male, two females. 
Tinus minutus F. Pickard-Cambridge 
Figures 4, 14, 15, 24, 25; Map 3 
Tinus minutus F. Pickard-Cambridge, 1901, Biol. Centrali-America, no. 2:31, 311, 
pi. 30, fig. 12. Female holotype from Teapa, Tabasco, Mexico in the British Mu- 
seum (Natural History), examined. Roewer, 1954, Katalog der Araneae, 2(a): 
142. Bonnet, 1959, Bibliographia Araneorum, 2(5):4622. 
Diagnosis. This is the smallest species in the genus with the male 
carapace length less than 3.5 mm and the female carapace length less 
