MOSQUITO BIOLOGY 165 



HABITS OF THE EARLY STAGES 



Full grown larvae were found April, 1903, near Paterson, with cana- 

 densis. The larvae were recognized as distinct, but were not bred. April 

 25, four well grown larvae from swampy woods near New Brunswick 

 also failed to develop. May 2, another lot of mixed larvae was brought 

 in, mostly canadensis. Pupation began May 3, and a male grosshecki 

 emerged May 8, though possibly not from the first pupa. Additional 

 collections were made May 16, mostly pupae and mostly canadensis; 

 but in two days fourteen specimens, nearly equally divided as to sex, 

 were bred out. Though this territory was collected over many times 

 later in the season and several other species were found, no further 

 trace of grossbecki appeared. It is probable, therefore, that only one 

 brood occurs, and that very early in the season. Nothing is known of 

 the egg laying habits nor of the method of hibernation, but from their 

 early date of appearance and their constant association with canaden- 

 sis, it is probable that the eggs winter like and with those of its asso- 

 ciate. 



Anopheles barberi Coquillet 

 The Tree -Hole Anopheles 



DISTRIBUTION AND CHARACTERIZATION 

 [Eastern United States. It is recorded from Plummer's Island, Mary- 

 land, August 17, 1905 (H. S. Barber) ; Cabin John, Maryland, Octo- 

 ber, 1908 (F. Knab) ; Bluemont, Virginia, July 29, 1904 (F. C. Pratt) ; 

 Woodstock, Virginia, August 9, 1904 (F. C. Pratt) ; Tyron, North 

 Carolina (H. G. Dyar) ; Columbia, South Carolina, August 1, 1906 

 (A. C. Moore) ; St. Louis, Missouri, August, 1904 (A. Busck) ; Agri- 

 cultural College, Mississippi, October 15, 1905 (G. W. Herrick) ; 

 Scott, Arkansas, October 2, 1908 (J. K. Thibault, Jr.). Reported also 

 from New Jersey (Smith). 



Trap records from 1932 to 1941 inclusive show thirteen catches of 

 this mosquito in New Jersey. 



Wings without spots. Thorax bluish black with brownish sides. Abdo- 

 men brown.] 



DESCRIPTION 

 Howard, Dyar, and Knab (14) give the following description: 

 "Female. Proboscis moderately long and slender, straight, uniform; 



