NO. 2167. SEVEN NEW SPECIES OF RED SPIDERS— MCGREGOR. 587 



colorless, arising from rather prominent tubercles, densely clothed 

 with distally pointing barbules; subfrontal bristle one-fourth again 

 as long as frontal one. Body rotund-eUiptical; male much less 

 rotund, narrowed backward. Bristles about 22 m four rows, in 

 length averaging about five-sevenths the width of body. Mandibu- 

 lar plate three-fourths again as long as wide, narrowed somewhat 

 anteriorly to a rounded tip, which is distinctly emarginate in the 

 female. Palpi pale pink, Uke cephalo thorax. ''Thumb" of palpus 

 not greatly shortened axially, the thickness at middle being about 

 nine-tenths of its length, bearing at its tip a slightly clavate "finger," 

 whose base is less than half as wide as the tip of the " thumb ;" on its 

 upper distal corner are two spine-Hke pseudo-fingers; on upper side 

 almost midway to base is a greatly reduced "finger," about one- 

 fourth as thick as the terminal "finger," and between this and base 

 are two short stout hairs rather similar to the pseudo-fingers. A 

 hair, similar to the upper basal one, arises laterally from the center 

 of the " thumb." The claw of the penultimate joint reaches just be- 

 yond the dorsal "finger." The legs are pale amber-color, not quite 

 as long as width of body. Femur three and one-half times as long 

 as wide, somewhat exceeding tarsus. Tibia nearly a third longer 

 than patella, which is nearly twice the length of the trochanter. Tip 

 of tarsus bears a stout claw, which is sickle-shaped; six weak spines 

 arise perpendicularly from the claw a short distance from its base. 

 The usual series of four capitate hairs are present, two on each side 

 fusing to form a swollen pedicel which are set on the onychium on 

 either side of the main claw base. Relative lengths of leg joints as 

 follows: Coxa, 15; trochanter, 7; femur, 26; patella, 12; tibia, 15; 

 tarsus, 23. The coUar trachea, opening medially in a pore, runs 

 downward in an almost straight line and just above the ventral end 

 bends sharply backward and expands into an eUiptical chamber, 

 which is twice the cahber of the Unear portion. 



Penis appears to be about intermediate between the T. telarius 

 type (as figured by Ewing) and that of T. monticolus (herein figured) ; 

 the inner lobe appears to be longer than the shaft proper, rodlike, 

 and somewhat slender; a well-developed basilar lobe occurs dor- 

 sally; the shaft is comparatively short and thick and bends abruptly 

 downward and slightly forward to form the stout hook, which ter- 

 minates in a rather straight, unbarbed, very sharp spur. The egg 

 is slightly depressed globose and bears a stalk which about equals the 

 height of the egg. 



Type.— C&t. No. 20167, U.S.N.M. 



The type material is from Batesburg, South Carolina, January 6, 

 1916, from the upper and under sides of American holly leaves (Rex 

 opaca), collected by Mr. F. L. McDonough and the author. The 

 species is in the group comprising T. pilosus Canestriiii and Fanzago, 



