88 Journal of the Mitchell Society [September 



There are many variations in exact habits, — certain species are 

 especially prone to enter houses for human victims, others seldom or 

 never do this, — the larvae of certain species predominate in rain-bar- 

 rels or cisterns, while others are seldom found there, — certain species 

 are active chiefly after sundown, others are equally or more active 

 during the day, — certain species are very averse to fl.ying in a breeze, 

 others take advantage of it to cover long distances. The importance 

 of ascertaining which, if any, of the disease-bearing mosquitoes occur 

 in any locality, is self-evident. This cannot be done by disease-records, 

 for we have no yellow-fever records at present, but we do have the 

 yellow-fever mosquito — so far as we know, it would onl^y require the 

 in-coming of a sufferer from this disease, at the opportune season, to 

 start an epidemic. Hence, it requires the study of the mosquitoes 

 themselves, the study of the mosquito-breeding waters, and the record- 

 ing of all possible data on each separate species before we can claim to 

 have adequate scientific data bearing upon the mosquito problem as 

 a whole. And this phase of the subject, being the strictly entomolo- 

 gical part of it, is the one which claims our chief attention in this 



The entire list of species for the State, so far as ascertained, in- 

 cludes 32 species, while it is probable that from 10 to 15 more yet 

 await discovery. 



It so happens that we have no positive record of any adult mos- 

 quito being taken in February, but we have records for every other 

 month of the year. 



The localities whose mosquito fauna is best known are : Charlotte, 

 with a list of 23 species ; Wilmington, with 15 species ; Raleigh, 13 

 species; Blowing Rock, 5; Henderson County, 5; Havelock (Craven 

 County), 5. Twenty-three other localities have from 1 to 4 species 

 on record. 



Let us now adopt the convenient division of the State into three 

 main regions : eastern, central and western. 



1. Eastern. This we will consider to include all from the coast 

 to Raleigh and Southern Pines but not including either of those two 

 localities. Twenty-one distinct species of mosquitoes have been taken 

 in this region, — of these, five species have not been taken in either of 

 the other regions, so far as our present records indicate, they are 

 exclusively eastern, — nine of the species have been taken in both the 

 eastern and central regions but not in western, — while the remaining 

 seven species have been taken in all three regions. 



