1922 ] Proceedings of the Cambridge Entomological Club. 
123 
Neiva, Arthur. 1913. Da transmissao do Trypanosoma Cruzi 
pela Triatoma sordida Stal. Brazil-Medico, xxvii, No. 30, 
p. 309. 
Neiva, Arthur. 1913. Multiplicagao na Vinhuca ( Triatoma 
infestans King) do tripanosomo do mal de cadeiras. Brazil- 
Medico, xxvii, No. 35, p. 356. 
Neiva, Arthur. 1913. Algunos datos sobre Hemlpteros hema- 
tofagos de la America del Bur, con la descripcion de una 
nueva especie. Anal. Mils. Nac. Buenos Aires, xxiv, pp. 
195-198. 
Neiva, Arthur. 1914. Revisao do genero Triatoma Lap. Rio 
de Janeiro: Typ. do “Jornal de Commercio.” pp. 71 + 
8 (bibliography). 
Neiva, Arthur, 1914. Contribugao para o estudo dos Reduvidos 
hematofagos, com a descripgao de uma nova especie, T. 
tennuis. Mem. Inst. Osw. Cruz, vi, Fasc. 1, p. 35. 
PROCEEDINGS OF THE CAMBRIDGE ENTOMO- 
LOGICAL CLUB. 
At the meeting of October 11, 1920, Prof. W. M. Wheeler 
read a paper by himself and Mr. L. H. Taylor on parasitism 
of Vespa arcticci upon Vespa dicibolica which was published in 
December 1921. A discussion followed on parasitism in general 
and especially the habits of Stylops in Andrena, Halictus and 
other Hvmenoptera. 
Dr. R. Heber Howe showed remains of beetles from peat 
deposits at Eastham, Cape Cod, Mass., between layers of glacial 
till and too far away from present outcrops to be of recent 
origin. 
At the meeting November 8, Mr. L. B. Uichanco read a 
paper on the development of certain unicellular organisms 
which live symbiotically in the bodies of Aphids. These are 
found in the ovaries and enter the eggs at an early stage. Later 
