4 PREFACE. 



information contained in them, I have concluded to devote more 

 time the coming year to lecturing; and have already prepared for 

 that purpose a number of large, colored illustrations. 



I am satisfied that by this means I can materially add to the good 

 effected by these Reports, and I shall endeavor to fill any engage- 

 ments which the officers of our county agricultural and horticultural 

 societies may desire to make, providing they give me notification a 

 sufficient time beforehand. 



In the following pages the same rules are complied with as were 

 laid down in my first Report. When the insects treated of are new, 

 or the existing descriptions of them are imperfect, or in a foreign 

 language, I have added a full description, which is, however, always 

 printed in smaller type, so that it can be skipped by the non-inter- 

 ested reader. The popular name of each insect is accompanied by 

 the scientific name, and the latter is always printed in italics and 

 mostly in parenthesis, so that it may be skipped by the practical 

 man without interfering with the text. The Order and Family to 

 which each insect belongs, is also given under each heading. The 

 dimensions are expressed in inches and the fractional parts of an inch, 

 and the sign S wherever used, is an abbreviation for the word "male," 

 the sign? for "female/' and the the sign ? for neuter. It must also 

 be recollected that many of the figures are magnified, and that the 

 hair line at the side of such gives the natural size. 



The scientific reader will notice that some of the insects are 

 referred to the old instead of the more modern genera, and this course 

 has been pursued because the generic nomenclature is constantly 

 changing, and because the old name has often become thoroughly 

 associated with the insect in the mind of the practical man, who 

 would be confused by, and is not interested in, the nice changes 

 taking place in classification. 



All the illustrations in this, as in the previous Reports, have been 

 drawn from life by myself, or under my direct care, unless otherwise 

 stated. 



I have secured a pleasant office, connected with that of your 

 Secretary, at Room 29, Insurance Building, Southeast corner of Fifth 

 and Olive streets, St. Louis, and all letters sent to me should be thus 

 addressed. 



My acknowledgments are due to the Superintendents of the fol- 

 lowing railroads, for free passes over their respective routes: The 

 Pacific Railroad of Missouri, Atlantic and Pacific, St. Louis and Iron 

 Mountain, Hannibal and St. Joseph, North Missouri, Chicago and 

 St. Louis, Illinois Central, and the Rockford, Rock Island and St. 

 Louis. 



All which is respectfully submitted by 



CHARLES V. RILEY, 



State Entomologist. 



St. Louis, Mo., December 2, 1S70. 



