JOURNAL 



OF THE 



Publishes articles relating to any class of the subkingdom Arthropoda, subject 

 to the acceptance of the Publication Committee. Original communications in this 

 field are solicited. 



Editorial. 



Within the last two years very rapid strides have been made in 

 the knowledge of the North American mosquitoes both as adults and 

 larviB Especially from the studv of the latter, several unexpected re- 

 sults have appeared. Certain species, which had been determined by 

 the students of the adults to be the same as European forms, turn out 

 to be a mixture of several distinct species. Culex cantans is now 

 divided into C. fitchii, C. abfitchii and << C. cantans" ; Culex reptans 

 is now called in America C. trichurus, C. lazarensis, C. ctstivahs and 

 C Pullatus ■ which is to sav that these forms would scarcely have been 

 regarded as distinct species from the adults alone on the characters 

 heretofore in use. Now the questions arise, do these forms appear only 

 in America, or are the European species equally composite, and, if so, 

 are all the forms the same as the American ones, or all different, or 

 partly the same and partly different? We want to know. Will not 

 some one in Europe take up this matter and study the mosquito larvae 

 carefully with a view to the discrimination of species? Or must we 

 ourselves plan an invasion of European territory? 



We re-ret that lack of space compels us to postpone articles by 

 Mr Snodgmss on the Coulee Cricket and by Mr. Caudell on some 

 Mantids, to the June issue. We send out their plates herewith, how- 

 ever, and think that the delay will not cause any controversy, as there 

 are no new species described in either paper. 



51 



