THE CLASSIFICATION OF BUTTERFLIES 



tinguishing these groups are given in the follow- 

 ing table. 1 



A. Lepidopterous insects (/. e., insects with the wings 

 clothed with scales) in which the antennae are of various 

 forms, but never threadlike with a knob at the extremity. 

 Not discussed in this book. The Moths. 



AA. Lepidopterous insects in which the antennae are 

 threadlike with a knob at the extremity. 



B. With the radius of the fore wings five-branched, 

 and with all of the branches arising from cell R + M 

 (Fig. 22); the club of the antennae usually terminated 

 by a recurved hook. (Superfamily Hesperioidea), p. 256. 



The Skippers. 



BB. With some of the branches of the radius of the fore 

 wings coalesced beyond the apex of cell R + M ; 2 the 



1 The following is the method of using the analytical tables given in 

 this book : Read carefully the statement of characteristics given opposite 

 A and AA respectively, and by examining the insect to be classified de- 

 termine which is true of this insect. This will indicate in which division 

 of the table the name of the group to which the insect belongs is to be 

 looked for. If this division of the table is subdivided, pass to B and BB 

 in this division and determine in a like manner under which the insect 

 belongs. Continue in this way, passing to the letters C, D, E, etc., in 

 regular order till the name of the group is reached. Then turn to the 

 page indicated and read the description of the group given there, com- 

 paring the specimens withthe description. 



5 In some butterflies two or more branches of radius of the fore wings 

 coalesce to the margin of the wing (Fig. 23) ; in this case all of the 

 branches may appear to arise from cell R + M, as with the skippers, but 

 the fact of such coalescence is shown by the number of the branches of 

 radius being less than five. See page 38, Fig. 23. 



4 37 



