S2 ORDERS. 
entomology, or the science which treats of 
this class of animals, is derived from the 
Greek word entoma, which has the same 
meaning as inseco. The class of insects 
is divided into seven orders, each of these 
orders is subdivided into genera, and 
the genera are still farther divided into 
species, 
Lucy, I am afraid I shall not re- 
member all this. 
Mother, At first jt may seem difficult ; 
but attention, and the habit of using 
these terms, will not only enable you to 
remember them, but will also show yoii 
their utility. 
We have already gone through one 
order, can you recollect what it is 
called ? 
Lucy. Lepidoptera ; and I believe 
you said it was the third order. 
Mother. Yes ; this order contains 
only three genera ; the butterfly, the 
sphinx, and the moth ; tell me their 
scientific, or technical, names. 
Lucy, Tlie butterfly is papilio^ which. 
