Vol. XXV] ENTOMOLOGICAL NEWS. 67 



May. 9. Mating was not observed. On May 29 (early A. M.), 

 or about twenty days after reaching maturity, the first cocoon 

 of eggs was found suspended in the nest ; and the second very 

 early in the morning of June 10. Early in the morning of 

 June 21 the third mass was deposited and the fourth about the 

 same time July 4. The four cocoons were then suspended in 

 the nest above the center in one corner, the first above and the 

 other three in a nearly straight line below it, all taken together 

 forming a triangle of which the second made the middle of the 

 base directly below the first, the triangle's apex. The fifth 

 mass was deposited during the night of July 30-31, and the 

 sixth August 26-27. The female disappeared on September 6, 

 1912. All of these eggs were fertile. 



Nos. 4 and 5, 6 and 7, 8 and 9, 15 and 16, and 18 and 19 

 (in the table) were from the same nest, each couple being the 

 second and third bags from the respective females, the first 

 having hatched; No. II was the fourth mass from a nest, the 

 three others having hatched; the other numbers were first or 

 second masses. 



The number of eggs which may be laid by some spiders is 

 illustrated by the contents of a medium-sized, hemispherical 

 egg mass, covered with a silk cap found placed flat against a 

 board at Paris, Texas, in March, 1904. It contained two thou- 

 sand one hundred and three compact, round, yellow eggs, 

 Unfortunately the species was unknown. 



Origin of Oligotropy of Bees (Hym.)* 



By CHARLES ROBERTSON, Carlinville, Illinois. 

 In this journal, volume 24: 104, Mr. Lovell replies to some 

 criticisms made in the number for December, 1912, Vol. 23: 



457- 



The statement about Bpeolus, quoted from the Botanical 



Gazette 28: 35, July, 1899, was corrected two months after- 

 ward on page 215 of the same journal, where it is also re- 



[*This article was received in July, 1913, but has not been published 

 at an earlier date, owing to the large number of manuscripts sent 

 in before it. Editor.] 



