174 NEUROPTERA. 
generally half membranaceous, and the 
other half are like vellum. 
Mother. Which half is usually like 
vellum ? 
Lucy, That next the breast. The 
third order is lepidoptera, which means, 
that the wings are covered with feathery 
scales. 
And now, what is the name of the 
fourth order ? 
Mothe7\ Neuroptera. The Greek 
words of which it is composed signify a 
nerve* and a wing*}*. The flies belong- 
ing to this order have four transparent 
wings, which are naked and membra- 
naceous. 
Lucy, But beetles also have membra- 
naceous wings ? 
Mother, Two only ; and they are not 
so thickly set with nerves as the wings of 
the neuropterous insects, which are like 
the most beautiful net work, or the finest 
gauze, 
* Neuron, f Pff^on, 
