No. 2303. RED SPIDERS OF AMERICA— McGREGOR. 673 



which reaches to the tip of the terminal "finger;" with the claw 

 on the penultimate joint stout and reaching to the dorsal "finger;" a 

 strong hair arising laterally from the center of the penultimate joints 

 another arising from the center of the dorsal face of this joint 

 which equals the claw, and a short weak hair with its origin on the 

 inner base of claw; and with a very strongly tubercled spur arising 

 distally from the top of the antepenultimate joint of the male. 

 The legs are relatively short; femur somewhat more than twice as 

 long as wide, barely equahng tarsus; tibia a little longer than 

 patella which is one-third again as long as trochanter: Relative 

 lengths of joints are as follows: Coxa 11, trochanter 11, femur 29, 

 patella 15, tibia 17, tarsus 29. Tip of tarsus bears a claw which 

 is rather straight for two-thirds its length and then bent sharply 

 downward; at a point one-third the length of the claw from its 

 base arise six slightly curved spurs whose tips surpass that of the 

 main claw; the four usual tenent hairs arise two on either side of 

 the base of the claw. 



The male is considerably smaller than the female (length, 0.216 

 mm.; width, 0.146 mm.), abruptly narrowed posteriorly. The legs 

 appear longer in proportion to the body than in the case of the fe- 

 male, and are salmon-pink. The distribution of dorsal bristles 

 is similar to that of female. Penis (see pi. 79, fig. 15) comparatively 

 short; inner lobe long, rod-hke, about three times as long as the 

 shaft; shaft very stout and short, becoming abruptly smaller dis- 

 tally, and bent upward at an angle of 120° to form the attenuate 

 hook, which is considerably longer than the shaft ; basilar lobe pres- 

 ent on upper side of shaft as a strong, conical projection; hook 

 possessing no barb, being spine-Uke terminally. 



The egg when first laid is pale, almost colorless, like a drop of 

 honey, but later turns bright red, is sphero-lenticular, with a vertical 

 stalk arising from the center of the top side which in length is about 

 twice the diameter of the egg. Several guy fibrils radiate downward 

 from the apex of the stalk to the leaf surface, thus giving additional 

 attachment to the egg. 



Type.— C&t. No. 20362, U.S.N.M. 



The type material is from Orlando, Florida, March 7, 1916, from 

 the leaves of lemon, collected by W. W. Yothers. 



PARATETRANYCHUS ILICIS (McGregor). 



Plate 79, fig. 17. 



Tetranychus ilicis McGregor, 1917, Proc. U. S. Nat. Mus., vol. 51, pp. 581-590, 

 pis. 101-107. 



Color, from ferruginous to reddish-brown, with a pale pink area 

 embracing central portion of the cephalo thorax; darker than most 

 red spider species. Eyes conspicuous, carmine. Dorsal bristles 

 115690— 19— Proc.N.M.vol.56 i3 



