216 THE ENTOMOLOGIST. 



shelter during the time the species is in pupa, for I find if they 

 are taken from the leaf and placed in moss they soon work them- 

 selves down by rolling from one side to the other, but if placed 

 in a box the jumping continues many days ; and I have every 

 reason to believe that they get so exhausted with the effort that 

 they seldom come to maturity. L. Kriechhcmmeri escapes from 

 its victim, while the larva is on the tree, in the beginning of June, 

 and does not emerge from the cocoon until the following April. I 

 believe it confines its attacks to T. stabilis ; so far I have not 

 obtained it from anything else. — G. C. Bignell ; Stonehouse, 

 August 7, 1882. 



External Parasites of Spiders. — Mr. Fitch, in his paper 

 on this subject (Entom. xv. 109), does not mention the exhibition, 

 at'the meeting of the Zoological Society on February 15th, 1881, 

 of examples of AQVodactyld degener, Haliday, bred by myself in 

 the preceding year from larva3 adhering to the outer surface of the 

 abdomen of two species of spider, — Linypliia obscura, BL, and 

 L. zehrina, Menge. The empty cocoons and spiders were also 

 exhibited. Fuller details of the above were published in April, 

 1881, in ' Spiders of Dorset,' part ii., p. 579, by the present 

 writer. The name of the parasite was, by a clerical error, given 

 as Acrodactyla Degeerii ; corrected, however, in the " errata." 

 These larvae are in some seasons very abundant : I have found 

 them not only on the above-named spiders, but on several species 

 of Theridion, as well as on other species oi Linypliia, and on 

 some Epeirids. It is possible that more than one species of 

 parasite has been concerned, though all the larvae which have 

 come under my own notice appeared to be identical. Mr. Parfitt 

 seems to have been under the impression that the larva from 

 which he bred Acrodactyla degener was an internal parasite, 

 .obliged to come outside owing to the body of the spider not being 

 large enough to contain it. This is, I tliink, a mistake. These 

 external parasites are probably hatched from eggs affixed to the 

 outer surface of the spider's abdomen, ov at any rate very slightly 

 inserted. — (Rev.) O. P. Cambridge ; Bloxworth Rectory, August 

 1, 1882. 



Erratum. — At p. 190, vol. xv. of Entom., for Cceiionyiiipha 

 Davus read Chorloh'ms Pamphilm. 



