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New Californian Spiders 



RALPH V. CHAMBERI.IN 

 The new spiders described below were found recently while identifying a col- 

 lection from Claremont received from Prof. Hilton and one made by the writer in 

 the same region in 1909 and 1913. A few forms from otiier localities noted in mak- 

 ing comparisons are also included. 



AVICULARllDAE 

 llexiira fut-va sp. nov. 



Carapace and sternum with labium and endites yellow of light reddish cast, un- 

 marked excepting for the solid black interocular area. Legs pale yellowish brown 

 without the reddish tinge. Chelicerae typically a little darker than the carapace. 

 Abdomen grey above and either wholly unmarked or sometimes showing a short 

 median longitudinal pale line at base; venter paler excepting toward the spinnerets, 

 where darkened; spinnerets pale brown like the legs. Chelicerae long, clothed 

 above on mesal portion with long setfe which are more abundant on the anterior face 

 below, .■\nterior lateral eyes much the largest, less than their long diameter apart, 

 scarcely three times the diameter of the medians. Anterior median eyes about their 

 radius apart, between two-thirds and three-fourths the diameter of the posterior 

 medians, which are smaller than the posterior laterals. Tibife I and II armed beneath 

 with 3-1-1 spines, the two unserried spines being at distal end. Metatarsi I and II 

 armed beneath with 3-3 spines. Spinnerets with articles proportioned much as in 

 p'ura, the tcrmiiial article being pointed and subaimulate, but the length rather shorter 

 than the width of tite abdomen and much shorter than its length. 



Length, 9 mm. Length of ccphalothorax, 4 mm. Length of tib. -)- pat. I, 3 mm.; 

 of tib. -|- pat. I\', 3.2 mm. 



Type— M. C. Z. 380. Claremont. 



A much lighter colored species than />iirii, the genotype, and differing in the 



much shorter spinnerets, in having 3-3 spines instead of 2-2 below on metatarusus I, 



in having the anterior lateral eyes scarcely three times instead of more than four 



times the diameter of an anterior median, in the proportionately broader endites, etc. 



Nemesoides gen. nov. 



Pars cephalica of moderate size. Fovea thoracica moderate, recurved. Anterior 

 row of eyes procurved, median eyes much smaller than the laterals. Laterel eyes 

 on each side less than their radius apart, the anterior scarcely larger than the pos- 

 terior. Rastellum of chelicerE well developed, the teeth long and stout. The labium 

 broader than long, unspined. Endites armed at base with a patch of slender spines. 

 Sternum with a pair of large impressions united at middle and in transverse line 

 with them, near, but separated from, each lateral margin a much smaller impression. 

 Tarsal claws with teeth numerous, in two sinuous series. Tarsi and, in part, meta- 

 tarsi of first two pairs of legs scopulate. Tarsi of last two pairs of legs spined (male, 

 genotype.) Metatarsus IV shorter than tibia IV. Superior spinnerets large, four- 

 jointed, the distal joint short, rounded, shorter than the third and much shorter than 

 the second. Tibia I of male with spur. 



Genotype — A', hespera sp. nov. 



This genus falls in Simon's group Nemesicse in its more restricted sense. 



