OF WASHINGTON, VOLUME XI, 1909. 149 



the draining of this pond should suffice. The complete drainage 

 is not necessary. Lowering the water level 2 feet would prob- 

 ably completely destroy the breeding conditions. If, after this 

 were done, Mansonia pertnrbans should be again found in 

 numbers, it would mean that another breeding place remained 

 undiscovered in the vicinity. It would not be a difficult task 

 to discover this, for breeding places in the right condition for 

 this species are few and easily recognized, now that the condi- 

 tions are understood. 



The following is a list of the species of mosquitoes taken at 

 Dublin, N. H., by Mr. Busck, Dr. Stowell, and the writer : 



Anopheles quadrimaculatus Say. Aedes fuscus Osten Sacken. 



Anopheles punctipcunis Say. Aedes abserratiis Felt & Young. 



Uranotaenia sapphirina Ostcn Aedes lazarensis Felt & Young. 



Sacken. Aedes aur aides Felt. 



Culc.v dyari Coquillett. Aedes trichurus Dyar (cinereo-^ 

 Culex restnans Theobald. borealis Felt & Young). 



Culex territans Walker. Aedes aurifer Coquillett. 



Mansonia perturbans Walker. Aedes hirsuteron Theobald (prc- 

 Aedes stimulans Walker (ab- tans Grossbeck). 



fitchii Felt). Aedes n. sp.* 



Aedes fitchii Felt & Young. Aedes triseriatus Say. 



Aedes canadensis Theobald. Wyeomyia smithii Coquillett. 



POSTSCRIPT. 



This report was submitted to Dr. Stowell, who commented 

 as follows : "I think you rather understate the amount of 

 house annoyance caused by the woods species during 

 June. They annoy on the verandas and come into the house, 

 as I think Mr. Busck will corroborate. But as a cause of dis- 

 comfort they cease to be important after the fourth of July, 

 except on very still, warm nights. As they decline in impor- 

 tance, the Mansonia perturbans appears and almost at once be- 

 comes a fierce and obnoxious pest. The first one captured this 

 year, you remember, was on June 25, at my house. Its prin- 

 cipal hours for activity are from 7 to 9 in the evening and 

 just before dawn, say from 3 to 5 A.M." 



*This will be described in a forthcoming paper with Mr. F. Knab. 



