400 THE CANADIAN ENTOMOLOGIST 



at the base of each antenna. Tip of mesothoracic wing-pad bear- 

 ing several bristles. Distal ends of femora ea.ch bearing a pair of 

 minute tubercles tipped with long spine like hairs. Ventral sur- 

 face of each abdominal segment bearing several tubercles and 

 spine-like hairs, those on last two segments being the most promi- 

 nent. By reason of this armature and abdominal movements, 

 the pupa can move quickly and readily. 



Explanation of Plate XI. 

 Figs. 1 and 3. Oak leaves showing mines of C. rubra. 



Fig. 2. Chalepiis rubra (after Chittenden in Bull. 38, N. 

 Ser., U. S. Div. Ent.). 



AN ENTOMOLOGIST WANTED, 



The Civil Service Commissioners of Canada hereby give public 

 notice that applications will be received from persons qualified 

 to fill the following positions in the Civil Service of Canada: — 



An Assistant Entomologist in the Entomological Branch of 

 the Department of Agriculture in Grade "C" of the First Division 

 at an initial salary of $2,200 per annum. Candidates must be 

 graduates of a recognized university, and must possess a good 

 working knowledge of the classification of the orders of insects 

 in addition to any special knowledge they possess of particular 

 groups. Candidates should submit a statement of their training, 

 experience and other qualifications, also a list of the entomological 

 papers published by them, together with copies of such papers 

 when possible. 



Applications should be sent at the earliest possible date to 

 the Secretary of the Civil Service Commission, Ottawa, from whom 

 application forms may be obtained. Particulars with regard to 

 the duties of this position may be obtained from the Dominion 

 Entomologist. 



December, 1918 



