356 MOSQUITOES OF NORTH AMERICA 



forget the most elementary prudence ; they foolishly strike against everything 

 and are liable to roll upon the ground. 



" I also observed cases when a female fell, captured at the same time by two 

 males, presenting the spectacle of a serious scramble, indication of the sexual 

 frenzy which reigns at such bacchanals." 



The eggs are laid in boat-shaped masses floating on the surface of the water. 

 Goeldi, at Para, found the number of eggs in two egg-rafts to be 225 and 270 

 respectively. C. S. Banks, in the Philippines, found the number of eggs in a 

 single mass to vary from 180 to 350. His figures show that there are from 6 to 9 

 rows of eggs in a raft, 7 or 8 being the usual number. The eggs hatch after from 

 one to three days. 



The species breeds most frequently in artificial receptacles, but also in ground- 

 pools in the vicinity of habitations when the water is sufficiently polluted. The 

 species thrives best in water charged with animal matter and shows a preference 

 for filthy water. Goeldi found that the eggs were being deposited in great num- 

 bers in vessels in which the bones of animals were being macerated and he be- 

 lieved that the large amount of animal matter in this water induced the females 

 to oviposit in unusual numbers. Breeding goes on continuously while conditions 

 are favorable. Under the most favorable conditions the larvae may reach 

 maturity within five or six days and the pupal period may be as short as two days 

 or less. 



Southern United States, Mexico, Central America and the West Indies and 

 the warmer parts of South America ; also the warmer regions of the Old World, 

 Mediterranean region, Nile valley, coasts of Africa, southern Asia, East Indies, 

 Australia, and some of the Pacific islands. 



Washington, District of Columbia, November 4, 1903 (W. V. Warner) ; 

 Alexandria, Virginia, September 23, 1899 (F. C. Pratt) ; Augusta, Georgia, 

 August 8, 1901 (W. Eeed) ; Cincinnati, Ohio, September 21 (T. H. C.) ; Co- 

 lumbia, South Carolina, September 12, 1908 (W. H. SUgh) ; Myrtle, Georgia, 

 August 26, 1906 (A. A. Girault) ; Orlando, Florida, November 25, 1908 (E. A. 

 Back) ; Key West, Florida, June 7, 1903 (E. A. Schwarz) ; Jacksonville, 

 Florida, June 20, 1906 (H. Byrd) ; Hastings, Florida, July 19, 1899 ; Mag- 

 nolia Springs, Florida, April 2, 1901 (F. J. Matheson) ; New Smyrna, Florida 

 (Dyar & Caudell) ; Tampa, Florida (Dyar & Caudell) ; Eichmond, Kentuc^, 

 August 25, 1904 (H. S. Barber) ; Lexington, Kentucky, October 19, 1901 (A. M. 

 Miller) ; Winchester, Kentucky, August 35, 1904 (H. S. Barber) ; Columbia, 

 Tennessee, August 16, 1904 (H. S. Barber) ; Knoxville, Tennessee, August 28, 

 1901 (S. R. Miller) ; Athens, Tennessee, August 22, 1904 (H. S. Barber) ; 

 Elvers, Tennessee, July 25, 1904 (H. S. Barber) ; Chattanooga, Tennessee, 

 August 20, 1904 (H. S. Barber) ; Magnolia, Mississippi, July 19, 1901 (G. W. 

 Herrick) ; Clarksdale, Mississippi, August 1, 1904 (H. S. Barber) ; Belzona, 

 Mississippi, August 5, 1904 (H. S. Barber) ; Agricultural College, Mississippi, 

 October 29, 1900 (G. W. Herrick) ; Jackson, Mississippi, August 7, 1904 (H. S. 

 Barber) ; Corinth, Mississippi, August 14, 1904 (H. S. Barber) ; Baton Eouge, 

 Louisiana (J. W. Dupree) ; Baton Eouge, Louisiana, December 5, 1904 (E. 

 S. G. Titus) ; New Orleans, Louisiana, December 17, 1895 (L. 0. Howard) ; 

 Euddock, Louisiana, May 10, 1901 (C. N. Burton) ; Cairo, Illinois, July 25, 

 1904 (H. S. Barber) ; St. Louis, Missouri, May 13, 1906 (Captain Chamber- 

 lain) ; Lawrence, Kansas, July (B. S. Tucker) ; Hot Springs, Arkansas, October 

 1, 1900 (A. Wright) ; Scott, Pulaski County, Arkansas, August 13. 1909 (J. K. 

 Thibault, Jr.) ; Helena, Arkansas, July 30, 1904 (H. S. Barber) ; Corpus 

 Christi, Texas, October 20, 1905 (P. C. Pratt) ; Llano, Texas, August 3 (W. 

 D. Hunter) ; Trinity, Texas, August 9, 1906 (F. C. Bishopp) ; Dallas, Texas, 



