460 
Psyche 
[September-December 
Records. California. Humboldt Co.: Grizzly Creek Redwoods 
St. Pk., 400 ft., 8 Aug. 1972, 2 ( cT ) , 12 $. — 1.4 mi. W of Red- 
way on road to Briceland, 400 ft., 7 Aug. 1972, ( cf ), 14? . — 2 mi. 
W of Briceland, 400 ft., 15 Sept. 1971, cf, ?. 
Aliatypus gnomus new species 
Figures 49, 58, 69, 82, 101, 149-150. Map 2. 
Type specimens and etymology. Holotype male from Henry 
Cowell Redwoods State Park, Santa Cruz Co., California, 3 August 
1972 (F. A. Coyle). One male and four female paratypes. The 
specific name is a Latin noun meaning dwarf. 
Diagnosis. Males: At least one of the following ratios (Table 1) 
will separate this species from any one of the other species: CL/PPL, 
CL/PSL, PSL/PSS, and PTL/PPL. The palpus, with an ICS 
keel and a slender conductor tip (Fig. 101), is quite distinct from 
that of all species. The ICS keel is narrower and the conductor tip 
more slender than in closely related A. calif ornicus. These palpus 
features, CL/PPL, CL/PSL, and body size (Table 1) are the best 
characters for separating A. gnomus from A. calif ornicus. In all of 
these characters, A. gnomus is more distinct from coastal A. cali- 
f ornicus populations than from the Sierran A. californicus popula- 
tions. Females: A. gnomus has distinctively large, close set AME’s, 
so that one ratio, AMD/AMS (Table 2), clearly separates this 
species from all other species. Also, the weakly sinuous seminal 
receptacles (Figs. 149- 150) are distinctive. A. gnomus is distinctively 
smaller (Table 2) than most other species. 
Description. See Tables 1-3. 
Males: Carapace. Thoracic groove a deep rounded pit. Post- 
ocular setae form rather short narrow row which is broadest an- 
teriorly. Sternum. Fig. 58. Posterior sigilla small and far apart. 
Pedipalp. Figs. 82, 101. Distal half of tibia ventrally swollen. 
Embolus base distant from ICS base. ICS with a thin narrow keel 
distallv. Conductor tip slender and tapers evenly to fine point. Inner 
(concave) edge of OCS smooth. Leg I. Tibia and metatarsus with 
most of ventral macrosetae attenuate; background setae long, slender, 
moderately densely distributed and more or less appressed on tibia but 
suberect on metatarsus. Abdomen. Tergites I, II, and III all well 
developed; II largest. Coloration. Pars cephalica and chelicerae pale 
brown. Pars thoracica pale yellow. Pedipalps darker than pars 
cephalica. 
