( 45 ) 



experiment whether spiders' eggs are in any way specially 

 protected. 



Although the Tineid spheres are much smaller than those 

 of Deilemera, each of them is similarly made up of several 

 bubbles, and the resemblance is so remarkably close that it 

 is appropriate to quote in this place the observations that 

 have been hitherto recorded concerning them. The references 

 to Marmara have been kindly given by Mr. Durrant. 



Clemens wrote of M. salictella in 1863 (" Ent. Soc. Phila.," 

 ii, p. 7 ; reprinted in Stainton's ed. of Clemens' papers on 

 •'Tin. of N. Am.," 1872, p. 212) — 



"It leaves its mine at maturity to weave a white, semi- 

 transparent cocoon within some crevice of the bark of the tree 

 on which it feeds or upon the ground. The exterior of the 

 cocoon is covered with little froth-like globules, which resemble 

 minute pearls." 



Busck wrote of the same species in 1903 ("Proc. Ent. Soc. 

 Wash.," v, p. 210) — 



"The writer has bred it for several seasons, and gave some 

 notes before the Washington Ent. Soc, on its unique mode 



[xcix 

 of ornamenting its cocoon, which deserves fuller treatment. 

 Such will be given shortly in a separate paper." 



Finally in 1907 Busck stated of Marmara opuntiella, Busck 

 {in "Ent. Soc. Wash.," viii, p. 97)— 



" At the last larval molt it assumes the cylindrical form 

 with normal legs and spins the characteristic cocoon with the 

 peculiar globular ornamentations as do the other species of 

 the genus." 



The Attacks of Tachinid Flies upon the Afbican Dan- 

 aine Genus Amauris. — Prof. Poulton exhibited 5 specimens 

 of Amauris psyttalea, Plotz, being all that Mr. W. A. Lamborn 

 "obtained from 25 pupae, the rest being parasitized by Tachi- 

 ?iidae" (Oct. 3rd, 1911). All 5 butterflies had emerged Sept. 

 20th, 1911. Seventeen dead pupae from the same company, 

 12 of the Tachinid flies, and a number of their puparia were 

 also exhibited. Mr. E. E. Austen had recognized 2 species of 

 Starmia in 4 of the flies submitted to him. In the same 

 letter Mr. Lamborn spoke of another company of A. psyttalea 



