XXVI INTRODUCTION. 



liis work will be deferred until a general sketch of the 

 terminology of the family can be given. 



Latreille also proposed a classification of these 

 insects, and makes some interesting remarks upon the 

 relations they bear to Aphis and to Coccus. Amongst 

 the aberrant forms he notes that the members of the 

 genus Flata, Fab., have often a close resemblance to 

 the small Lepidoptera, " rassemblant a de petites 

 Phalenes, ou mieux encore, a des Pyrales." Particu- 

 larly in Flata limhata we find an example of suggestive 

 affinity in the elongated antennae, the farinose wings, 

 &c. Thus this insect recedes from the Homopterous 

 and approaches to the Lepidopterous type. 



Dr. C. Fallen wrote in 1826 a treatise, ' Homoptera 

 Sueciae,' and, again later, another work entitled 

 ' Cicadarite Londini Gothor.,' which I have not seen. 



Carolus Strd published four volumes on the African 

 Hemiptera-Homoptera, from 1864 to 1866, the last 

 volume of which he dedicated to Dr. Fieber. This work 

 is little more than a catalogue of these insects, without 

 any accompanying life-history. He notes numerous 

 examples of the small silent Cicadse, many of which 

 are generically represented in Europe and Great 

 Britain. Stul's work is chiefly useful to the student of 

 British forms in a classificatory point of view. Stal 

 also wrote numerous papers on the genera Issus, 

 Cixius, Phila'nus, &c., from the years 1854 to 1869, all 

 of which papers are previous to Fieber's work on the 

 Cicadinae, &c., in 1872. 



It is to be remarked that in these tropical regions 

 our own genera, Delphax, Aphwphora, Tettigonia, &c., 

 do not seem to attain to larger dimensions than they 

 do in temperate climates. 



Prof. J. 0. Westwood, in 1840, divided the Ho- 

 moptera into three primary sections, based on the 

 number of their tarsal joints : — 1. Trimera (Cicada, 

 &c.). 2. Dimera (Aphis, &c.). 3. Monomera (Coccus, 

 (fee). His remarks on Cicada are well worthy of 



