ENTOMOLOGY 



undoubtedly, will be found more useful and clearly under- 

 stood than to take the definitions from the spots, colour, or 

 transparency of the wings, for these are vague and uncertain 

 and perpetually varying, whereas the external outline 

 (which is a grand distinction) is always found to be constant 

 and persisting. 



According to this new division, the present Butterfly 

 comes under the character called Arcuatus, or bow-shaped, 

 having in the lower part of the outline an undulated shape, 

 by the junction of the upper and lower wings, which makes 

 it resemble a bow. The Orbati have their wings very much 

 extended, and all of them rounded, as described in the last 

 number. The Caudati have a long tail, projecting from 

 each lower wing, and these form a very large family of 

 foreign Papilios, although but very few of them are found 

 in England. The Excelsi have their upper wings spread 

 out, rounded, and very much lifted up. The Cuspidati 

 have the outermost corners of the upper wings cut off in 

 an angular form. The Muscarii have wings resembling the 

 common fly, and which are also transparent. 



It appears likely, from the convenience and perspicuity 

 of the above arrangement, that it may very probably super- 

 sede the necessity of all the former ones, and illustrate 

 clearly, by the most exact definitions, this most beautiful 

 and interesting branch of the animated creation. 



