J ASSID2E. 
737 
Jassid, an almost white insect, about one-third of an inch long, 
found abundantly on this crop and in grass. It is widely spread in 
India and is at times found in such abundance that it may almost be- 
put down as a pest and will probably rank as a destructive insect 
when it is exceptionally abundant. It is the sole example of this 
large genus, so well represented in sub-tropical India, which is 
really widespread in the plains. Kolia mimica, Dist., is extremely like 
the foregoing species, but is not known to have its wide distribution ; 
students will certainly confuse it and should bear in mind Distant’s 
remark: “ It is however to be generically separated by the angular 
vertex, the lateral margins of which are in a line with the outer 
margin of the eyes.” 
Gyponince. —The three tropical Indian species are so distinct that, 
though the ocelli are on the vertex, they will be readily recognised. 
Penthimia compacta,WYk., P. subniger , Dist., and Neodartus acocepha- 
loides, Mel., are dark-coloured rather broad insects, flattened and 
not slender, which are found on soil and among fallen leaves, or 
which come rarely to light. They are rather sluggish insects and form 
part of the immense surface soil fauna, unlike most of this family. 
Jassince .—Ocelli placed on or at the anterior edge of the head. 
Mucaria splendida, Dist., will be confused with the last species unless- 
the ocelli are looked for when they will not be found. It is a rather 
broad black species, so far known only from Pusa. Hecalus is- 
iil < 47 
