tically the same plane with the body, and the body itself is usually 

 placed at an angle with the wall, and especially when resting upon a 



Fig. 1— Adults of Culex and Anopheles: a, Ciikx sollicilans; b, Anopheles pu-ictipenms—en\&TgeA 



(author's illustration.) 



horizontal wall, such as the ceiling of a room, the body of Anopheles 

 is at a very great angle with the surface. We have in this country 



