ENTOMOLOGICAL NEWS 



AND 



PROCEEDINGS OF THE ENTOMOLOGICAL SECTION 



ACADEMY OF NATURAL SCIENCES, PHILADELPHIA. 



Vol. XVII. JANUARY, 1906. No. 1 



CONTENTS: 



De la Torre Bueno— Ways of Progression 

 in Waterbugs i 



Quayle — Notes on the Egg-laying habits 

 of Culex curriei Coq 4 



Girault— Standards of the number of eggs 

 laid by insects — IV 6 



Weeks— Letter to the Editors 15 



Pearsall— Harrisimemna trisignata Walk. 21 

 Wheeler— On certain tropical ants intro- 

 duced into the United States 23 



McClendon— Notes on collecting in Mex- 

 ico 26 



Nason— Parasitic Hymenoptera of Algon- | Cockerell— A new fossil ant 27 



quin, Illinois— III 7 



Tucker — Determinations of some Texas 

 Coleoptera with Records 10 



Editorial 29 



Notes and News 30 



Doings of Societies 35 



Ways of Progression in Waterbugs. 

 By J. R. de la Torre Bueno. 



In Entomological News for December, 1904 (p. 344), 

 Mr. G. W. Kirkaldy has a suggestive note on the subject of 

 oaring in waterbugs, in which he refers to Professor Packard's 

 remarks in " Half Hours with Insects," on the motion of the 

 legs in swimming in Ranatra and Belostoma and (Amorgius). 

 In February, 1905 (p. 53), the News published a brief note 

 of mine on Corixa, Notonecta and Belostoma, and in March (p. 

 88), Mr. C. S. Brimley, of Raleigh, threw further light on the 

 method in Be?iacus griseus. These brief notes suggested to 

 me that since I would have living waterbugs in my aquaria 

 through the spring and summer, it might be well to look into 

 the subject a little more thoroughly, the more so that all the 

 general works I have been able to consult content themselves 

 with vague remarks. In connection with my breeding experi- 

 ments, the following observations were made : 



The position back down assumed in swimming by our Amer- 

 ican generai: of the family Notonectidcs is too well known to 

 call for more extended mention. In Notonecta (irrorata, un- 

 dulata, variabilis and insula to) and in Buenoa (Anisops, par- 



