The Naturalis^j' 



than he himself was aware. He found that his arguments and the 

 clearness of his presentation had been so remarkable, that the world, 

 in a brief space of time, considering the revolution involved, was 

 converted to his theory. 



(To be continued.) 



ON THE CLASSIFICTION OF BRITISH INSECTS. 



By S. L. Mosley, Huddersfield. 



(Concluded.) 



The next family is the Perlid^e, or stone -flies. In this family the 

 fore and hind wings are of nearly equal length, and the abdomen has 

 two antennee-like projections at the end. 



The third family is the Ephemerida, or may-flies, distinguished from 

 the last by the very short antennae, the small hind wings, and by the 

 long slender filaments at the extremity of the body, which are some- 

 times three in number. 



The fourth family is the Lihellulidce, or dragon-flies, well known to 

 every collector of insects. 



The fifth family is the HemerohiidcB., or lace-winged flies, of which 

 Clirysopa pet^la^ a pale-green delicate insect with metallic eyes, found in 

 woods, is weU known. 



The family Sialidce consists of a few species, and have aquatic larvee. 



The family Pamrpidod, or scorpion-flies, have black spots on their 

 wings, and the males are armed at the extremity of the body with 

 scorpion-like pincers. 



The second sub-order of Neuroptera, or distinct order, whichever 

 you like to call it, is the Trichoptera, the well known caddis-worm 

 flies. They are very similar in their appearance and habits, and seem 

 all unitable under one general class. 



Ord. 5, Lepidoptera. — The Trichoptera seem to unite the 

 Neuroptera with the Lepidoptera, and the transmission is most 

 complete, if we begin the latter with Acentropus ?iiveus, but this, as in 

 the case of the Coleoptera, would no doubt meet with little favour 

 from specialists, they are so accustomed to begin their cabinet with 

 Papilio MacJiaon^ that I am afraid it would be difficult to persuade 

 them otherwise ; yet Maehaon can have no connection with any other 



