2 
insect which might happen to be damaging their plants; and, 
secondly, that the student who should desire to know more of 
this curious family might have enough details indicated to guide 
him in his investigation. For the first purpose the figures have 
been coloured as near to nature as possible: for the second a 
few anatomical details have been introduced. The printing of 
these plates has been executed by Mr. Potts, lithographer to 
Mr. A. Willis, of Wanganui, and it is hoped that the reader 
may be well satisfied with the care and trouble which have been 
bestowed upon them. 
The author is sensible that this volume may contain 
numerous imperfections; but these will not, he trusts, be 
attributed to culpable ignorance or carelessness. 
