194 
Psyche 
[Vol. 87 
Pirata canadensis, n.sp. 
Figures 1-8 
Types: Holotype: male, Whirlpool Lake, Riding Mountain Na¬ 
tional Park (R.M.N.P.), Manitoba (August 27, 1979; J. H. and M. 
Redner). Paratypes: 4 females, same data as holotype; 1 male, 2 
females, same data except August 20, 21; 1 female, Whirlpool River, 
R.M.N.P., Manitoba (June 22, 1979; S. J. Miller); 7 males and 7 
females, Swanson Spring, R.M.N.P., Manitoba (June 20-July 18, 
1979; D. B. Lyons); 1 male, Wasagaming, R.M.N.P., Manitoba 
(August 29, 1979; J. H. and M. Redner); 1 male, Agassiz Forest 
Reserve, Manitoba (July 1, 1964); 2 males, 1 female, Poltimore, 
Papineau Co., Quebec (May 18-August 3, 1979; J. H. Redner and C. 
D. Dondale); 3 males, 2 females, Kouchibouguac National Park, 
Kent Co., New Brunswick (June 8-August 16, 1977; G. A. Calder- 
wood). The holotype and paratypes are deposited in the Canadian 
National Collection of Insects and Arachnids, Ottawa. 
Etymology: The specific name is based on the name of the country 
in which the type-series was collected. 
Diagnosis: Individuals of P. canadensis differ from those of the 
other North American species in the insularis group by being smaller 
(range of carapace length and width, respectively, 1.52-1.90 and 
1.01-1.28 mm, contrasted with 2.00-3.45, 1.32-2.55 mm for P. 
insularis and 2.17-2.71, 1.50-2.06 for P. cantralli). The carapace 
usually lacks the dark lateral rim found in individuals of the other 
species, and the venter of the abdomen often has three dark 
coalescent longitudinal bands, or a single broad dark area, rather 
than slender separate bands. The distitarsus of leg I in males is also 
somewhat curved rather than straight. 
Specimens of P. canadensis do not key to either insularis or 
cantralli in Wallace and Exline’s (1978) key owing to the frequent 
lack of a dark lateral rim on the carapace and to the small body size. 
Male: Total length approximately 3.00 mm. Carapace 1.71+ 0.07 
mm long, 1.13+ 0.05 mm wide (15 specimens measured). Carapace 
shiny, somewhat irridescent; brown yellow or yellow orange, with 
margins sometimes somewhat darkened; usually with broad mar¬ 
ginal pale area, paired dark longitudinal bands, and tuning-fork 
mark anterior to dorsal groove; posterior margin somewhat concave; 
lateral margins almost smoothly convex, strongly narrowed at level 
of coxae I and II; height approximately uniform from dorsal groove 
