1920] Notes on the Mosquito Fauna of North Carolina 89 



2. Central. We will consider this region to include Raleigh and 

 Southern Pines and westward to the foot of the Blue Ridge, including 

 Tryon. This reckoning places Raleigh and Charlotte (comparatively 

 well-worked localities) in this area, and gives it a predominance, for 

 the present, in the number of species on record. Twenty-seven species 

 of mosquitos have been taken in this Central region, — eight of which 

 have not yet been taken in the other areas, — nine (as before men- 

 tioned) have been taken in central and eastern regions but not in the 

 west, — three have been taken in both central and western areas but 

 not in the east,- — -the remaining seven have been taken in all three 

 regions. 



3. Western. We will consider this region to include the strictly 

 mountain area of the Blue Ridge and west of it. Ten species -of 

 mosquitoes have been taken in this region, none of which are confined 

 to it, — three of them having been taken in the western and central 

 areas only, — the other seven being ones which have been taken in all 

 three regions. 



It is probable that further studies will show some of the species 

 which are now known only in our central area to occur in the 

 eastern area also. Dr. Barrett has taken one or more southerly species 

 at Charlotte, which is further north than they were before known to 

 occur, and such species are very likely to occur in our eastern region 

 whose general fauna appears to be more southerlj^ than at Charlotte. 

 Indeed, the general showing would no doubt be considerably altered 

 in its details, if our knowledge of our mosquito fauna, and its distri- 

 bution, were as complete as we hope eventually to make it. 



Already enough is known to indicate that in number of species 

 the central section of the State will compare with the eastern, what- 

 ever disparity there may be in numbers of individuals, — even if all 

 of the species now known in the central region are eventually found 

 in the east, and if no more were found in the central region, its present 

 list of twenty-seven species is sutScient to show that it has a mosquito 

 fauna worthy of consideration. Owing to the presence of larger un- 

 drained areas it is undoubtedly true that the total mosquito popula- 

 tion is the greatest in the east, and for the opposite reason, least in 

 the mountains. As yet the mosquito fauna of the mountains has been 

 least explored. A complete list from that region would probably show 

 a surprising variety, but the areas for breeding are more restricted. 



