26 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



Mr. Banks stated that the mites fouud on mosquitoes were 

 Hydrachnidse, and in this country mostly belong to the genus 

 Eylais. In Madagascar one observer found that the mites 

 transferred themselves with each moult to the successive 

 stage ; where the mites attached to the adult it meant their 

 death, as they can not live out of water. 



Dr. Dyar remarked that the ability of mosquitoes to de- 

 posit fertile eggs before being fed on blood differed with the 

 various species. Acdcs calopus is not able to deposit fertile 

 eggs till blood-fed. 



-The last paper of the evening, " Some notes concerning 

 Rafinesque's papers on Aphididse in American Monthly Maga- 

 zine, Vols. I and III, 1817 and 1818," by H. F. Wilson, was 

 discussed by Messrs. Schwarz, Banks and Gill. 



A NEW EUCLEA. 



[Lepidoptera, Cochlidiidae.] 



Mr. Schaus obtained in Esparta, Costa Rica, a single male 

 of a small Eticlea, very close to Euclea cuspostriga from the 

 Guianas. It differs, however, in the shape of the subbasal 

 silver mark, which is a slender thread, bent outward in the 

 middle, instead of a short, thick cusp. I suggest the name 

 Euclea trichathdota for this form. Type, No. 13075, U. S. 

 National Museum. --HARRISON G. DYAR. 



A CORRECTION. 



On page 185 of the last volume of these Proceedings, occurs 

 an unfortunate clerical mistake, which I had no opportunity 

 to discover in time. The first letter of the generic name 

 Isocorypha was lost in the proof-sheets, and the synonym 

 Socorypha thus inadvertently created. AUGUST. BUSCK. 



