iyo Journal New York Entomological Society, [vol. xiv. 



Culicidae of North and Central America, for classification and descrip- 

 tion, with the very kind permission to publish descriptions of the new 

 larvae in advance of the monograph. The adults have been given into 

 other custodv, and the determinations that have been transmitted to 

 us are, in many cases, at variance with larval characters. We haye 

 been unable to personally examine into the discrepancies without 

 exceeding the field which has been assigned to us. Therefore it seemed 

 advantageous to treat the larvae as independent organisms and class- 

 ify them separately, especially as an independent classification, con- 

 sistently worked out, when compared with the one based on adult 

 characters, should throw light on the phvlogeny of the group and 

 indicate the more reliable distinctions. If any apology is due for 

 proposing new names for larval forms, we hereby make the apology- 

 To us, it seems justified in this case, especially as, in nearly all cases, 

 bred adults are in the hands of our co-workers. We find, moreover, 

 that a synonym is easily dealt with, whereas a misidentification or 

 confusion of two species under one name is really more troublesome. 

 Therefore, if it shall prove. that we have named the larvae of previous- 

 ly described species, we believe that less difficulty will be experienced 

 than if we had left them nameless, or doubtfully referred them to 

 known species. 



The junior author has made a trip to the West coast of Central 

 America after mosquito larvae and has been closely associated with 

 the work subsequently as artist for the early stages. We are indebt- 

 ed to Dr. Howard for the opportunity to study the material, as well 

 as the drawings of the mouth parts made by Miss Evelyn G. 

 Mitchell and Miss Mary Carmody for the monograph. We also 

 feel grateful to Dr. Howard's numerous assistants and correspond- 

 ents, who have helped to collect the material and, especially, to Mr. 

 August Busek and Mr. P. W. Urich, who have obtained so many of 

 the West Indian specks 



The identifications of adults here used have been made by Mr. D. 

 W. Coquillett of the Bureau of Entomology, U. S. Department of 

 Agriculture, custodian of Diptera in the U. S. National Museum. We 

 have accepted these determinations wherever there existed no "appa- 

 rent reason to discredit them. We have not personally verified them 

 in any case, as the specimens are not before us. 



