(16 DIFFERENCE OF THE ANTENNA. 
Mother, Yes, it is called setaceous*, 
or bristle shaped. 
Lucy, But here is a fourth shape, 
like a feather. 
\vith the fringe on the sides, and a rib 
in the middle. 
Mother, Describe the shape of that 
rib. 
Lucy, Jt is thicker next to the head, 
and lessens towards the point. How is 
this kind of antenna called ? 
Mother, Pectinated'\, or comb shaped ; 
but more commonly feathered. Moths 
have both feathered and unfeathered an- 
tennae, but they are always taper. 
Lucy, The distinction is very plain : 
I am sure I shall not forget it. Have all 
the different kinds such long antennae as 
are drawn here ? 
Mother That depends upon the size 
of the fly ; but, in proportion to that size, 
* From Seta, a bristle, 
t From PecteUf a comb. 
