245 

 Bipersia 'palmarum sp. n. 



Adult female viviparous, pale reddish brown, about 3 mm. 

 long, inclusive of caudal setae. Dorsum covered with dense 

 white secretion, hiding segmentation. jMarginal tufts very 

 short but stout, getting longer caudad. Eight tufts at caudal 

 end about 1 mm. long. These are sometimes curved upwards ; 

 sometimes they coalesce, forming plates which are very farina- 

 ceous. When placed in liquid potash body turns dark reddish 

 brown, derm becomes transparent. Antennae six- jointed, stout 

 and quite hairy. Joint 1 is broader than the rest and cone- 

 shaped. Joint 6 is the longest; joints 1, 2 and 3 are sub- 

 equal, as well as joints 4 and 5. Formula: 6, (1, 2, 3), 5, 4, 

 or 6, (1, 2), 3 (4, 5). Legs are short and stout, a trifle 

 longer than the antennae. Coxa broader than long. Femur 

 about as long as tibia plus tarsus plus claw. Claw very stout. 

 Tibia 1^/-^ times longer than tarsus. Dorsum with row^s of 

 long fine hairs on each segment of body. Caudal lobes well 

 defined, with two pairs of long setae> the outer pair about 

 half as long as the inner pair, and five or six conical spines of 

 various sizes and numerous stout hairs surrounded with many 

 round and triocular pores. Marginal patches on the last four 

 segments bearing groups of round pores with conical spines. 

 Anal ring with six stout hairs about as long as caudal setae. 



Larvae reddish brown, quite large when just hatched, 

 active. Antennae and legs stout. Antennae six-jointed, the 

 sixth the longest and as long as joints 2, 3, 4 and 5 together, 

 which are subequal in length. Legs short and stout. Femur 

 very stout. Tibia subequal with tarsus. Claw long and 

 straight, abruptly curved. Caudal lobes w'ell defined, with 

 setae about twice as long as the hairs on anal ring. Rostral 

 loop reaches beyond last pair of legs. Eyes red. 



Male cocoon small, not densely felted. 

 Adult male. — Two forms have been found. 



Apterous male very small, active, reddish brown, eyes red. 

 Antennae eight-jointed, of which joint 8 is longest, about one- 

 third longer than 2. Joints 1 and 2 are much broader than 

 the rest, joint 2 being as broad as long. Joints 4, 5, 6, 7 are 

 subequal. Legs long and slender, very little longer than an- 

 tennae. Caudal lobes not very prominent, with short setae. 

 Style quite pronounced. 



