1936 ] 
New Species of Southern Spiders 
89 
surrounding labium, pedipalps colorless, long and parallel, 
extending forward with a single claw; sternum colorless, 
wider than long, margins with many short hairs ; abdomen 
oval, two thirds as wide as long, base slightly bilobed, a 
dull tan thickly covered with irregular chalky white spots, 
entire abdomen sparsely covered with very long colorless 
hairs, venter paler with the same chalky white spots ; legs 
colorless with no indication of dark rings, hairy with many 
bristles that can hardly be called spines, I and II femora 
with a double row of heavy bristles, calamistrum double, 
extending over little more than the basal half of IV meta- 
tarsus ; spinnerets protruding, of the usual type ; epigynum 
with a bilobed chitinized margin thinly fringed with long 
colorless hairs above a slightly darkened area with trans- 
verse wrinkles ; above the chitinized margin are two widely 
separated darkened areas. 
Male. Length, 2.0 mm.; ceph., 0.8 mm.; abd., 1.3 mm.; 
width of the cephalothorax 1.0 mm. 
Cephalothorax, pale as in female but without the dark 
margin, eye elevation higher than in female so that clypeus 
is almost vertical ; palpus long, femora parallel, patella and 
tibia about equal length, terminal joint brown and palpal 
organ dark brown, projecting from cymbium quite the 
length of the joint as figured. 
Holotype $ Texas; Dallas, 17 March, 1935, (S. Jones). 
Allotype $ Texas; Dallas, 28 March, 1935, (S. Jones). 
Paratype $ Texas; Dallas, 14 June, 1935, (S. Jones). 
Paratype 9 Texas; Dallas, 13 May, 1935, (S. Jones). 
This genus has been represented in the United States by 
Oecobius parietalis (Hentz) found in the southern states. 
Chamberlin and Ivie have made a revision of the American 
species of the family in Ann. Ent. Soc. Amer., 1935, 28, pp. 
262-272, pis. 1-4. They have described a new species Oeco- 
bius isolatus from immature females found at Carmen Is- 
land, Gulf of California and Sycamore Creek, Arizona. 
This species has heavily annulated legs and a carapace 
blackish. The relative position of the eyes is not given. 
As so many small spiders are carried by commerce, it 
was thought that there was a possibility that this species 
might be Oecobius maculatus Simon, the species found about 
