560 11 AK VEST-SPIDERS OF OHIO WEED. 



tubercles. Maxillary lobe of the second ]>aii' of legs much louder than 

 wide, gradually narrowing from the base to the extremity, directed 

 obliquely forward and not meeting 5 anterior border straight. Pectus 

 large, parallel between the cox?e, rounded in front or slightly lanceo- 

 hite, more rarely enlarged and obtusely truncate. Feet long, more or 

 less robust. Claw of paljnis simple. 



But cue species of this genus has been foniid in Ohio. 



Phalaiigiuni cinereiim Wood. 



(Plate LXix.) 



PhaJatujinm chwreitm Wood, Comm. Essex Inst., vi, 25; Weed, Araer. Nat., xxvi, ' 

 32; Trails. Anier. Eut. Soc, nix, 269. 



Male. — Body, 5-G.S'""^ long; 3-4""" wide; palpi, 4"" long. Legs: first, 

 23-33"^"'; second, 44-52"""; third, 24-33 ", fourth, 31-30"'"'. 



Dorsum ash-gray, sometimes more or less brownish, with a wide, 

 vase-shaped central uiarking, which is sometimes obsolete. There is a 

 transverse series of small spinose tubercles behind the eye eminence, 

 another row on posterior border of cephalothorax, and one row on each 

 abdominal segment except the last two; a curved series of similar 

 tubercles is found in front of the eye eminence. These tubercles have 

 Avhitish bases and acute black apices, and generally also have a spinose 

 hair arising on one side near the apex of the Avhite portion and reach- 

 ing bej'Ond the tip of the tubercle. In front of eye eminence there are 

 two longitudinal series of three each of these tul)er(des. Lateral bor- 

 ders of cephalothorax subsinuate. Eye eminence low, canaliculate, 

 with a series of five or six tubercles like those on dorsum on each 

 carina. Mandibles brownish white, tips of claws black; second joint 

 and apical portion of first joint furnished Avith short, black, stiff hairs. 

 Palpi light brown, rather slender, first four joints with minute tubercles 

 and short black hairs; none of the angles piolonged; tarsal joint with- 

 out tubercles, but with hairs; claw moderately robust. Venter, iiu-lud- 

 ing coxa^, light grayish brown, with many somewhat quadrangular 

 patches of a more pronounced brown, and scattered blotches of choco- 

 late-brown. Trochanters light brown, with many small tubercles; 

 remaining joints of legs cinnamon-brown, more or less annulated Avith 

 lighter and deeper shades; angular, with longitudinal rows of black 

 spines; sheath of genital organ subcylindrical, truncate; shaft robust, 

 with two lateral oval openings near distal extremity, then contracted 

 into a blunt scoop-shaped piece, turned upward at nearly a right angle 

 and terminating in a slender acute point. 



Female. — Body, C-O"'"' long, 4-5"'"' wide; palpi, 4"'"' long. Legs: first, 

 2i_29n..n. second, 39-52'""'; third, 22-29""" ; fourth, 30-37""". 



Differs from male as follows: Body larger, rounder. Dorsum darker 

 gray, more mottled, central marking more distinct ; tubercles on dorsum 

 smaller, those on eye eminence more numerous, and those forming the 

 longitudinal series in front of eye eminence also more numerous. Palpi 



