REPORT ON MOSQUITOES. 277 



in Clinton Township. July 12th. Air. Dickerson took larvse and 

 pupcC from holes at the base of trees at Chester, where Mr. Har- 

 old O. M'arsh also found them August 21st. At the same point 

 where he first found them in May, Mr. Grossbeck took larvae and 

 pupae July 15th, and at that date there were full grown larvae and 

 pupae as well as very small examples, recently hatched ; an in- 

 coming and an outgoing brood. The last collections were made 

 by Mr. Brehme, September 3d, in the Great Piece Meadow's, 

 well advanced larvae and pupae being found. 



It will be noted that all these collections were made in holes in 

 trees and stumps, and such cavities when water filled are, without 

 doubt, the normal breeding places for this species. Mr. Dicker- 

 son took a few examples at New Brunswick in a little woodland 

 brook broken into disconnected pools during the summer, and I 

 took a full brood from an iron kettle that had been half buried in 

 sand, was partly filled with chips, and almost hidden in the grass 

 at Lahaway. These are the only records of finding them else- 

 w^here than in tree cavities. 



Mr. Brakeley, by the bye, who originally found that there were 

 larvae in this iron kettle, replanted it and in fall found the eggs 

 along the sides at or above the then surface of the w-ater. These 

 eggs were kept water covered during the winter by Dr. Dyar, to 

 whom they were sent, and hatched at Washington, May i8th. 



This larva, in appearance, is nearer like that of Stcgomyia 

 fasciata, the yellow fever mosquito, than any other of those that 

 occur in New Jersey. Whether this indicates a closer relation- 

 ship than the adults seem to show and, whether at a pinch, triser- 

 iatiis might do the work of fasciata in transmitting the yellow 

 fever, are interesting speculations. 



Development is slow, especially w^hen the larvae are rem.oved 

 from the water in w^hich they lived ; in fact unless they are nearly 

 full grown they rarely develop at all. The pupal period ranges, 

 even in midsummer, from four to seven days. 



Meanwhile, though this mosquito is occasionally present locally 

 and bites when it gets a chance, its existence can scarcely be 

 seriously annoying anywhere. 



CULEX SERRATUS. THEOB. 



The Silver Strihed Mosquito. 



A moderate sized black mosquito, characterized bv a broad 

 silvery gray stripe through the center of the thorax. The legs 

 and beak are unhanded, the wings unspotted, while the abdomen 



