62 PROCEEDINGS OF THE ACADEMY OF [Jan., 



not so conspicuously, however, as the male of L. ocreata pulchra. It 

 is very readily kept in captivity, when supplied with sufficient water. 



Individuals observed, males: No. 34, captured May 4, immature, killed May 10; 

 No. 37, captured May 4, moult May 24, killed the same day by a $ ; No. 151, 

 captured May 26, killed by 9, June 16; No. 164. captured May 31, killed by ? 

 on the same day; No. 236, captured June 22, killed by parasite July 21 ; No. 238, 

 captured June 22, died July 8 ; No. 240. captured June 22. died June 27 ; No. 284, 

 captured July 2, died July 7. 



Individuals observed, females: No. 36, captured May 4. moult May 7, died in 

 November; No. 51, captured May 6, killed May ll(then immature); No. 165, 

 captured May 31, still hving; No. 184, captured June 10, died October 4; No. 

 227, captured June 27, still living; No. 228, captured June 22, escaped July 20; 

 No. 229, captured June 22, escaped August 11; No. 230, captured June 22, 

 escaped late in September; No. 231, captured June 22, died October 18; No. 

 237, captured June 22, killed by parasite July 3 ; No. 239, captured June 22, 

 killed by parasite August 26; No. 241, captured June 22, moult July 19, killed 

 by parasite about September 8; No. 244, captured June 22, moult July 3, died 

 August 16 (then not mature); No. 285, captured July 2, killed by parasite about 

 September 1; No. 287, captured July 2, killed by parasite about September 30; 

 No. 324, captured July 23. still living. 



Moult.— 9 No. 244 moulted in about half an hour, hanging to the 

 wall of her cage by her spinnerets; she fell out of the old skin, which 

 was split horizontally along its whole length backward almost to the 

 spinnerets. <^ No. 37 took only a few minutes to complete his moult. 



Mating. — The following records were made on this process: 

 . (1) ? No. 36. Several males were put in her cage before she had 

 completed her final moult, on May 7, but there was no courtship. 

 Then after similar resvilts with males Nos. 34 and 37, the latter was 

 introduced again on May 24, when she killed him. On May 27 d' No. 

 151 was introduced; courtship followed but no copulation. At 2.15 

 P.M. on May 28, the same male was put in and immediately started 

 his courting motions. These consisted of the following movements: 

 The male generally walks with his first pair of legs stretched before 

 him, tapping the ground with them occasionally; this is evidently to 

 feel the objects in front of him. When he had touched the female 

 with them, he immediately recognized her sex, stood higher upon his 

 legs, raised his first pair and flexed them backward at the femoro- 

 tibial joint, then straightened them out in front of him again, repeating 

 this several times, and at the same jerking his whole body backward 

 and forward with the movement without changing the position on 

 the ground of the other feet ; there was no waving of the palpi. He 

 left her, walked around the cage, returned and repeated the motions ; 

 they were then face to face, when she lowered her head to the ground, 



