640 XEW JERSEY AGRICULTURAL COLLEGE 



not those of canaden.':>is which I have had, and which are smaller. 

 They were probably either cwntans or abfitchii. Xone of these eggs 

 hatched under laboratory conditions. 



The:?e pot holes are real danger points, and more particularly g 

 the smaller, less permanent ones, and they need attention, though 1 

 they produce only a single brood annually. 



As to the rest of the woodland and swamp areas, they need little 

 or no attention, and no signs of breeding were observed. Along 

 some of the roadsides water-filled depressions were seen, and in 

 some of them hirvee of C. sylvestris, C. restuans and Anopheles 

 pvnctipennis were found in small numbers. 



This series of observations carried on throughout the season 

 demonstrates that for the entire area covered by it the salt marsh 

 species are the dominant and annoying types, except in the woods 

 in which the pot holes occur, and there cantans, abfitchii or cana- 

 deiisis may be expected to be the pestiferous forms. The occur- 

 rence of ahfitchii this year is quite out of the course of our ex- 

 perience and may not be repeated for some years ; but, on the 

 other hand, the experience may be duplicated next year. Our 

 stock of facts is as yet too small to make it safe for ns to generalize 

 or predict. 



All of the inhabitants of this region are affected bv the marsh 

 mosquitoes ; only those who live very close to or actually in the 

 wooded area are apt to be tro'ubled by the sylvan species. There 

 are no dangerous swamp areas of any extent any^vhere within the 

 sur^'eyed area. There are several places where pools form at times 

 and from which Culex sylvestris, pipiens, restuans and Anopheles 

 are bred in greater or less numbers, but most of these places can 

 be easily and cheaply abolished. It is quite probable that there 

 are places where Cidex pipiens breeds that can only be found by a 

 house-to-house inspection and which we could not find because we 

 entered no enclosures. « 



The drainage of the Elizabeth and Linden marshes, which is to 

 lie undertaken in 1907, will give relief from the salt meadow 

 species and will leave the sylvan forms as the principal source of 

 trouble from May to mid July. Just how far the individuals fly 

 within the Tvoodland we do not know ; we do know that they will 

 not go outside of the woodland or from the shelter of trees. It is- 

 not probable that any stretch of open would be crossed to get from 



