90 THE CANADIAN ENTOMOLOGIST. 



" Thorax convex each side, much contracted before, with very small punc- 

 tures; dorsal indentation obsolete near the anterior margin and in the middle, 

 profound at base : elytra with regular punctured striae, not rugose; base with 

 a dilated common deep indentation equalling that of the thorax, and another 

 smaller indentation on the middle of the base : thighs unarmed. Length 

 over half an inch. 



" Common, and is the largest species that I have met with in this country. 

 The hair of the body detains a yellowish ferruginous dust, which often gives 

 the whole insect that color." 



EXCHANGP]S. 



LEPiDOPTERA.^Of Northern United States in exchange for those of the 

 Southern United States, Canada, East Indies, and South America. Corres- 

 pondence also solicited. W. Webster Butterpield, M.D., P. 0. Box 

 111, Indianapolis, Indiana, U. S. 



LEPiDOPTERA.-^Of Pennsylvania, in exchange for those of Canada. — F. 

 M. YfiAGER, Reading, Pa., U. S. 



Lepidopxera. — I am very anxious to secure a correspondent in Canada 

 who would give me in exchange Lepidoptera (Rhopei. et Heteroc.) from 

 Canada, Labrador, and British America generally, for some from Penn., 

 Virginia, Greorgia, Florida, California, Europe, S. America, etc. — Herman 

 Strecker, Box 111, Reading, Berks Co., Penn., U. S. 



European Diptera, — A large collection has been entrusted to me, which 

 will be exchanged for American Diptera, Orthoptera, Hymenoptera, Coleop- 

 tera, and Lepidoptera; preference given to tbe orders in the sequence 

 named. — Rev. C. J. S. Bethune, Credit, Ont. 



EPHBMERiD.gE. — An English Entomologist studying this tribe thoroughly, 

 earnestly desires American specimens, for whicb other English insects will be 

 given. — Address Editor Can, Entomologist, Credit, Ont. 



Hymenoptera. — Now that the collecting season has begun again, we beg 

 to remind our readers that Mr. E. T. Cresson, of Philadelphia, is desirous of 

 obtaining specimens of Canadian Hymenoptera. He will gladly determine 

 specimens for any one who will send a duplicate set, numbered to correspend 

 with their cabinet specimens, to the care of Johnson Pettit, Esq., Grrimsby, 

 Ont. 



BOOKS RECEIVED. 



First Annual Report on iJié J^oxious, Beneficial, and other Insects of the State 

 of Missouri. By Charles V. Riley, State Entomologist. Jefferson City, Mo., 

 1869. (Price $1, plain plates ; $2 colored.) 



We gladly notice the receipt of this excellent Eeport, which is of interest and 

 value not only to farmers and gardeners, for whose especial benefit it is prepared, 



