Notes on the Commoner Species 181 



this species in pot-holes in a creek near Voorhees- 

 ville, N. Y. I do not think it flies far. An allied 

 form, found only in the western United States, is 

 varipalpus, distinguished by the curious spotted anal 

 gills. 



Aedes fuscus, etc. — A'edes fuscus is found in New 

 Jersey ; we also secured adults in Louisiana, but 

 never obtained larvae. It is not known whether the 

 insect will bite. Dr. Smith believes that it is only a 

 local breeder, which winters in the egg stage. Mr. 

 Brakeley found the larvae early in April, and they 

 have been taken in pools dry through the winter, and 

 only filled by spring rains. They seem to be re- 

 corded only in April and May. 



O. nivitarsis also appears to be a local species, 

 reported from New Jersey as a propagator in rocky 

 pools on the Garrett mountain. 



O. dyari is found in New Hampshire and British 

 Columbia, multiplying in cold, permanent springs and 

 slow streams in the woods ; it is not common. 



TJieobaldia annulatus should be noted as of general 

 distribution, not only in the south-west but also in 

 Europe; as, however, it does not seem to bite, it is of 

 little importance. 



Group VI. — The Woodland Breeders 



Janthinosoma posticata. — This species was very 

 thick on the edges of the woods about Baton Rouge. 

 One could not sit down in the shade for a moment, 

 but that their white hind feet were seen bobbing 

 through the air at one. They bit like fiends, and 

 frequently drove us to rest in the sun, or under some 



