EXPERIMENT STATIOX REPORT. 6(59 



Culex piijioLs, may be charged some of the sleepless nights that 

 were exj)erienee<l last season. 



Culex salinarius also occurred quite generally over the salt 

 marsh— never, however, appearing in verj^ large numbers. Thev 

 appeared about midsummer and were found as late as the carlv 

 part of November. On August l;3th, a single female was caught 

 on the South Amboy meadow. It was caged and given a meal of 

 blood, which it readily took, and on the 18th laid a loosely-con- 

 structed egg-boat, aggTegating, approximately, seventy-tive eggs. 

 The young lar^'a^ hatched on the 20th, ten making their advent at 

 3 o'clock p. M. and live others at 5 p. m., showing that the larvae 

 do not hatch simultaneously. They grew rapidly, considering their 

 confinement, and on August 30tli the first pu]ia was formed. This 

 hatched September 1st and by September 7th the last of the entire 

 lot had emerged. 



This species occurs as late into the season as any other Xew 

 Jersey form. ]\Lr, J>rehnie reported an interesting observation, in 

 Xovember, 1905, which came too late for incorporation into the 

 report for that year. He found full-grown larva^. in a })Ool on the 

 Elizabeth marshes, which was covered with ice to 'the thickness of 

 almost one-fourth of an inch that had formed during the preceding- 

 night. After the ice had been broken he found the larva^ lyiiig' 

 at the bottom of the pool, and when scooped up with a net and 

 transferred to a bottle showed scarcely any signs of life. In about 

 five minutes (the bottle being exposed to the sun's rays) they be- 

 gan to wriggle slowly to the surface. When it was reached they 

 ceased to wriggle and immediately sank to the bottom again. They 

 then remained at the bottom for fully five minutes, and probably 

 longer, before another attempt Avas made to obtain a fresh sii])])Iy 

 of air. It was not very long, however, l^efore they wei'e as active 

 as ever, and in the laboratory almost all of them came to maturity. 



Culex territans was found in my pails kept for breeding pur- 

 poses on August 4th. This species confines itself, usually, to 

 clear, fresh-water pools, and it is rare to find them in a water pail. 



Uranofaema sapphirina, a rather rare species in Xew Jersey, 

 was taken in various stages of development in a woodland water 

 area of the Great Piece meadows. The larvae were very liard to 

 rear, and, though a few reached the pupal stage, none became adult. 



Of the species of Corethridse, Corethra crnctipes was of rather 



