

ENTOMOLOGICAL NEWS 



AND 



PROCEEDINGS OE THE ENTOMOLOGICAL SECTION 



THE ACADEMY OF NATURAL SCIENCES, PHILADELPHIA. 



VOL. XXXI. FEBRUARY, 1920. No. 2. 



CONTENTS 



Cole Notes on the Lunate Onion Fly, 

 Eumerus strigatus (Dip., Syrph- 

 idae) 31 



Stevens Notes on Species of Halictus 

 Visiting Evening Flowers (Hym.) . 35 



Spooner Some Notes on the Occur- 

 rence of Delphacinae (Hemip. 

 Homop.) 44 



McAtee Specific, Subspecific and Vari- 

 etal Categories of Insects and the 

 Naming of them 46 



Braun Coleophora apicialbella nom. 

 nov. (Microlepid.) 55 



Caudell A Correction in the Mecopo- 

 dinae (Orthopt.) 55 



Editorial Entomology at the Convo- 

 cation Week Meetings of 1919-20. 56 



Metcalf A Suggestion for a Better 

 Popular Name for the Fulgoridae 

 (Hemip.) 57 



Change of Name 58 



Entomological Literature 58 



Notes on the Lunate Onion Fly, Eumerus 

 strigatus (Dip., Syrphidae) 



By F. R. COLE, Bureau of Entomology, Palo Alto, California. 



Several articles on the Lunate Onion Fly have appeared 

 recently and Prof. Metcalf 's paper (Ent. News, XXX, p. 170- 

 174) gives a good summary of our knowledge of this potential 

 pest in this country. In view of the possible importance of 

 this fly it may be worth \vhile to describe and figure the species 

 and to give certain observations which have been made on 

 its habits. 



It is an European species and the larva was recorded in 

 England as early as 1842 by Curtis (Card. Chronicle, II, 1842). 

 In 1845 Dufour described and figured the larva and two years 

 later Bouche wrote a paper on the early stages, stating that 

 the larvae often destroy whole crops of the common onion. 

 Herold in 1915 (Zeitschr. fur wiss. Inseckten, XI, 345) re- 

 cords great damage to potatoes by the larvae of E. strigatns. 



