MOSQUITOS OR CULICIDAE OF NEW YORK STATE 



275 



the air tube is set on a fleshy elevation, which is probably exten- 

 sile. The chitinous portion of the tube proper is about four times 

 as long as its greatest diameter. The double row of posterior 

 pecten is present but remarkably modified, consisting of small 



Fig. 13 Superimposed combs of Psorophora c 

 showing the peculiar, small scales in front of the larger 



iliata, 

 ones 



tubercles bearing one very tong, slender seta and a very short, 

 conical process of about equal size. 



Habits and life history. This species appears to be widely dis- 

 tributed in New Y'ork State, having been taken in several locali- 

 ties. The mosquito is vicions 

 and bites readily in the day- 

 time. It has been reported by 

 various authors from a number 

 of the Eastern states, ranging 

 as far south as Texas and west 

 to California. It has also been 

 reported from several South 

 American countries, but so far as kno^m to us it ha® not been 

 taken in the eastern hemisphere. 



The life history of this insect was unknown till August 1900, 

 when some of its giant larvae were obtained by Dr Howard from 



Fig. 14 Several larval comb scales of 

 Psorophora ciliata very much en- 

 larged 



