68 
Psyche 
[March 
“sweeping stream vegetation” and the occasional mention of a 
stream name. I have collected this species in Nuevo Leon while 
searching for Dolomedes. Like Dolomedes it is found among rocks 
along the stream, perched head down but higher from the water. One 
female with an egg sac was taken from a sheet web under a boulder. 
Broken emboli in the female copulatory apparatus and the absence 
of emboli from some palpal organs indicate that the embous is often 
broken during copulation. 
A gravid female and egg sacs are with two collections from north- 
ern Mexico, dated respectively late September and early August. 
An egg sac is in a Costa Rican collection dated February. 
Distribution. Eastern Mexico from Nuevo Leon and Nayarit 
southward to Costa Rica. 
Material examined. Six males, 40 females, 20 immatures. 
Tinus peregrinus (Bishop) 
Figures 2, 10, 11, 20, 21; Map 2 
Thaumasia peregrinus Bishop, 1924, Bull. New York State Mus., 252:62-63, pis. 36, 
37. Female holotype from Hot Springs, Arkansas in the New York State Mu- 
seum, examined. Bishop and Crosby, 1936, Ent. News, 47:243-244. Gertschand 
Davis, 1940, American Mus. Novitates, 1059: 14. 
Tinus peregrinus, -Gertsch, 1940, (rev. ed. Comstock, 1912, Spider Book), pp. 622, 
631, 633, figs. 707, 708. Kaston, 1953, How to Know the Spiders, p. 137. 
Thaumasia peregina.-Roewer, 1954, Katalog der Araneae, 2(a)141. Bonnet, 1959, 
Bibliographia Araneorum, 2:4416. 
Diagnosis. For a comparison between the male palpus of this 
species and T. nigrinus, which it most closely resembles, see the diag- 
nosis of the latter species. The epigynum of the female lacks the 
median elevation, but may have a dark area between the lateral 
elevations which might represent the rtidiments of the median ele- 
vation. 
Description. Carapace : average length of males 5.04 mm (4.3- 
5.5, N=8), average length of females 6.49 mm (5.0-7. 8, N=8); broad, 
dark, median band; light submarginal bands. Legs : (4-2-l)-3. Ab- 
domen: median band with typical shape (Fig. 2). Male. Pedipalp: 
(Figs. 10, 11) tibial apophysis broad, arises apically on dorsal side, 
bends laterally and terminates in two tubercles; conductor narrowed 
apically; median apophysis rounded, inconspicuous, not distinctly 
widest apically, white; tegulum with 3 distinct lamellae; cymbium 
with elevation on prolateral margin near base of conductor. FE- 
