PHOEODON GALEOPSIDIS. 
173 
with transverse rows of black spots. Cornicles green, 
clavate, and curved. Tail about half the length of 
nectaries, pale green. Rostrum short, reaching to the 
first coxge only. Legs short, with dark femora and 
tibia points. Wings rather short. Insertions yellow. 
Cubitus brown. Stigma grey. 
This insect may be found on various plants, and in 
some seasons is not uncommon. It feeds under the 
leaves of Galeojpsidis tetrahit, Lamium album, and 
Stachys sylvatica. The specimens figured are from 
Polygonum persicaria, and were taken in September. 
Genus III.— MYZUS,^ Passerini. 
Rostrum much like Phorodon. 
Antennse about equal to the length of the body. 
Frontal tubercles strongly porrected in the males, but 
less so pi the other sexes. The first joint gibbous, 
not dentate. 
Cornicles cylindrical, rather long. 
Tail about one third the length of the nectaries. 
Legs stout and moderately long. 
Wing" venation as in Phorodon. 
The chief difference of this from the preceding 
genus is the absence of the tooth on the first antennal 
joint. Except from the very remarkable development 
of the frontal tubercles in the viviparous females of 
P. Jiumuli, the two genera might be united. 
Passerini takes Myzus cerasi for the type of his 
genus. In England Myzus rihis appears to be a more 
characteristic insect. 
Apparently from sugo. 
