INTRODUCTION 
The following twenty-one plates represent the balance and con- 
clusion of those issued in Part IV of our first Volume. Owing to 
the inexperience of the photographer the result has been by no means 
satisfactory and deficiencies in the photographs have naturally been 
exaggerated in the half-tone reproduction. We think, however, that 
in future we can promise a marked improvement in the quality of our 
illustrations. We have of late had some excellent work done by an 
experienced commercial photographer and hope to publish samples of 
his work shortly; in the meantime we offer the following plates for 
what they are worth. Many of the specimens figured are readily 
recognizable, and for those that are not so good we crave the in- 
dulgence of the entomological public. 
As in our previous publication a number of the illustrations 
represent types, co-types or specimens that agree with the type. A 
few species are undescribed; to these we have affixed the manuscript 
names and expect to publish a full description in a later number. 
