136 Mr. Wesrwoop on the Family Fulgoride. 
nean and Fabrician Fulgoræ, including the well-known Chinese species Ful- 
gora Candelaria, the European Fulgora europea, &c. were placed in the 
genus Flata. The character, however, upon which this separation was 
founded cannot be maintained, since in F. Candelaria and its allies the sepa- 
ration between the forehead and the clypeus is strongly marked, and even in 
F. tenebrosa the line of separation may be clearly perceived. 
M. Guérin in his description of the insects collected in the * Voyage de 
Belanger," gave another classification of the family, consisting of seventeen 
genera; amongst which Flata and its allies are separated from Fulgora and 
its allies, by the size of the prothorax, which is much narrower than the meso- 
thorax, and deeply notched behind; whereas in the latter the prothorax is 
“ presque aussi large que le mesothorax, et très peu échancré en arrière.” 
This last section consists of the following genera, thus tabularized : 
Second joint of the ¢ Forehead prolonged into a rostrum . .  Fulgora. 
antenna globose. | Forehead not prolonged. . . . . . ÆEumallia. 
fendt, Germar.) 
Beocud Joint AF the Forehead longitudinal. . Apheena. 
( Aphana, Burm.) 
antenne oval 
Forehead transverse . . . Lystra. 
By this arrangement, the character derived from the produced anterior 
part of the head is made secondary to that of the form of the antennae; and 
consequently we find that some of the species of Aphana, CA. discolor, A. 
fuscata, Guér., A. nigro-maculata, Gray,) have the head produced into a re- 
curved horn, as is also the case with Fulgora recurva, which ought also to be 
considered, according to this arrangement, as an Aphana. Burmeister has, 
however, given another arrangement of these allied genera, which in some 
degree alters the limits of the genus Fulgora, and which is as follows: 
a. Front of the head not rostrated. 
$ Second joint of the antenne elongate-ovate. 
Forehead broader than Dun WU UOI ceret 
Forehead longer than broad or quadrate . . . Aphana. 
$ Second joint of antennæ globular. 
Forehead without elevated central carinæ . . . Lystra. 
