678 NEW JERSEY AGRICULTURAL COLLEGE 



known to breed in 1904. Li the Great Piece meadows large larva? 

 occurred April 17th, in many pools, some of which were two miles 

 distant from each other. They were very local, large numbers being 

 fonnd in one pool, while others directly adjacent and of precisely the 

 same character, did not contain a single specimen. 



In one locality they were associated with larvse of C. canadensis, C. 

 ahfitchii and Corethra cinctipes, about one third being cantans; in 

 another they occurred with C. pretans, C. aunfer, C. canadensis and 

 Aedes fuscus, only a very small proportion being cantans. Adults 

 began to emerge April 26th and continued to issue till May 8th. 

 There is no record to show that there is more than one brood. 



Cnlex abfitchii Felt & Young. (^iphonaUs Gross.) (The Brown- 

 Striped Woods Mosquito). — ]!^ine half-grown larvae were taken April 

 17th, in the Great Peace meadows, in company with C. canadensis, C. 

 cantans and CoretJira- cinctipes. Another collection, made April 25th, 

 turned out fifty additional larvie, and on this same day the first pupa 

 appeared. On the whole the larva^ did not do well and only a small 

 proportion reached the adult stage; the first, a male, emerging May 

 3d; the last, a female, May 12th. 



Culex sylvestfis Theob. (The Swamp Mosquito). — This mosquito 

 was sent in from many localities and in all stages from young larvae 

 to adults. It has held its own in numbers as compared with previous 

 years. The earliest larvae were found April 14th. when they occurred 

 in comparatively small numbers associated with C. canadensis and 

 Aedes fuscus. The first adults from this lot began to emerge April 

 26th and continued to issue until April 30th, when the culture was 

 closed. 



■Culex signifer Coq. (The White-Lined Mosquito). — This species 

 has been sent in from three localities, all of them September col- 

 lections, and as, in one of the localities, earlier collections had been 

 made in the same situations, the question arose as to whether or not 

 the species bred only in fall. 



Mr. H. 0. Marsh, of Chester, and Mr. Dickerson Jointly tested 

 this point and the results indicate, rather conclusivelv, a single fall 

 brood. Mr. Marsh found full-grown larvje and pupse September 5th, 

 1904, in a hollow tree, associated with those of C. trisenatus, and 

 October 3d of the same year, a single, fully-developed larva was taken ; 

 apparently a belated example. In 1905 he visited the tree again. 

 May 21st, and though triseriatus larvae in various stages were fdund. 



