533 



Hymenoptera 

 General References to the Hymenoptera 

 ASHMEAD, W'm. H. 



1900. Some hymenopterous parasites from dragon-fly eggs. Ent. 



News, 11: 615-617. 

 1894. Descriptions of two new Hymenopterous parasites from 

 water beetles. Can. Ent., 26: 24-26. 



Brocher, Frank 



1910. Observations biologiques sur quelques Dipteres et Hymen- 

 opteres dits "aquatiques". Ann. biol. lacustre, 4: 170-186, 

 12 figs. 



Henriksejnt, Kai L. 



1918. * De europaeiske Vandsnyltehvepse og deres Biologi. 

 (The aquatic Hymenoptera of Europe and their biology) 

 Ent. Meddelel, 12: 137-252, 14 figs. 



Heymons, Richard 



1908. Susswasser-Hymenopteren aus der Umgebung Berlins. 

 Deutsch. Ent. Zeitsch., 1908: 137-150, 4 figs. 



Heymons, R. and H. 



1909. Hymenoptera. Siisswasserfauna Deutschlands, 7 : 27-36, 

 P figs. 



Lubbock, John 



1863. On two acjuatic Hymenoptera, one of which uses its wings 

 in swimming. Trans. Linn. Soc. London, Zool., 24: 135-141, 

 pi. 23. 



Matheson, Robert, and Crosby, C. R. 



1912. * Aquatic Hymenoptera in America. Ann. Ent. Soc. 

 Amer., 5 : 65-71, 3 figs. 



Rousseau, E. 



1907. Les Hymenopteres aquatiques, avec description de deux 

 especes nouvelles par W. A. Schulz. Ann. biol. lacustre, 2 : 

 388-401. 



RuscHKA, F., and Thienemann, a. 



1913. Zur Kenntnis der Wasser-Hymenopteren. Zeitsch. wis- 

 sensch. Insektenbiol., 9 : 48-52, 82-87, 6 figs. 



Schenkling, Sigm. 



1896. Im Wasser lebende Hymenopteren. Illust. Wochensch. 

 Ent., 1 : 33-34. 



