CALIFORNIA STATE COMMISSION OF HORTICULTURE. 



FIG. 76. Female of 



in far northern Alaska 

 report them as the se- 

 verest plague of that 

 section. Explorers 

 have not yet penetrated 

 sufficiently far to the 

 north or south to es- 

 cape the mosquito. 

 Every one dreads this 

 pest. Their droning 

 sound in the still hours 

 of the night always 

 brings with it a feeling 



enlarged. (Miss. Q | irritation and dread) 



and the poisonous 



wounds inflicted by them are well known to everybody. It has now 

 been definitely proven that the bite of the common mosquito, Culex 

 irritans, with all its 

 pain and irritation, is 

 the lesser evil inflicted 

 by the members of this 

 family, for there is now 

 no doubt that they are 

 active agents in the 

 spread of malaria and 

 yellow fever, and per- 

 haps of other malig- 

 nant contagious dis- 

 eases. To the non-ento- 

 mologist a mosquito is 



FKi 



At left, head of male Cttlc.r: at right, head of female 

 Culex, enlarged. (Miss. Agr. Exp. Station.) 



a mosquito, but to the entomologist there are numerous species included 

 under this title, all of varying degrees of badness, ranging from bad to 



worse and worst, the 

 plagued pipens, which 

 annoy us so, not being 

 among the worst. The 

 malaria-spreading 

 mosquito is known as 

 Anopheles maculipen- 

 /r/.s, while that to which 

 we owe the dissemina- 

 tion of yellow fever 

 goes by the name of 

 Stegomyia fasciata. It 

 would seem that the 



FIG. 78. At left, head of Anopheles, showing appendages: at 

 right, head of Culex, showing appendages Enlarged. 

 (Miss. Agr. Exp. Station.) 



