Mosquito Remedies and Enemies 135 



the abdominal cavity of all the stages, and therefore 

 must attack the mosquito while in one of its aquatic 

 forms. I have seen as many as three of these worms 

 in a larva, filling up the greater part of the body cavity. 

 This parasite was described by Dr. Stiles. There are 

 other parasitic forms found preying on the Culicidne. 

 Indian larvae are attacked by an intestinal gregarine ' ; 

 Anopheles in Italy is harassed by a filamentous phy- 

 toparasite 2 ; in Spain a pathogen-ic yeast has been 

 found in the abdominal cavity of A. maculipennis 

 and Acarines externally on Culicidae 3 ; while the 

 adult female of A. maculipennis has also an intestinal 

 infection of a parasitic flagellate 4 ; Anopheles seems, 

 by most poetic justice, to come under a special ban, 

 for it is also afflicted by sporozoa " ; and a small tre- 

 matode 6 ; sporozoa are found in Cnlex as well. ' Dr. 

 Smith considers that the parasitic worms of C.sollici- 

 tcins form a very material check to its propagation, 

 since where the parasites are present the ovaries do 

 not develop, and large numbers of the females are 

 often so infested. Infection, however, does not pre- 

 vent migration nor biting. 



'Ross. 2 Perroncito. 3 Laveran. 4 Leger. 5 Jonnson. 6 Martirano. 

 1 Mueller. 



