INSECTS NEW OR UNUSUAL IN MICHIGAN. 



BY R. H. PETTIT. 



Bulletin No. 244. 

 INTRODUCTORY. 



The present Ijulletin is written for the purpose of placing on record 

 certain new insect pests that have appeared in Michigan during the last 

 few years, and of noticing recent invasions of old but little known or 

 unusual enemies. 



The illustrations are from various sources. Credit is given in each case 

 where the cut is not original. 



The methods of preparing insecticides are given in special bulletin num- 

 ber 24, and in Inilletin 233, either of which may be had oh application. 



The writer wishes to thank Mr. E. J. Kraus, Student Assistant, for his 

 aid in rearing several of the species, in making photographs and in many 

 other ways. 



We are always glad to receive insects or their work, and in return to 

 name them when possible, and to give advice as to their control. Send 

 specimens, when possible, in tight, tin boxes with few, if any holes. Send 

 to the Department of Insects, or to the Entomologist of the Experiment 

 Station, Agricultural College, Mich. 



