The Glow-Worm and Other Beetles 



various segments, in the all but absolute ab- 

 sence of relief which would enable one to 

 distinguish the parts of the perfect insect; 

 while, on the other hand, it approximates to 

 the chrysalids, because the creature, to attain 

 this condition, has to shed Its skin, as the 

 caterpillars do, It differs from the pupa 

 because it has for covering not the surface 

 skin, which has become horny, but rather one 

 of the inner skins of the larva; and it differs 

 from the chrysalids by the absence of mould- 

 ings which in the latter betray the appendages 

 of the perfect insect. Lastly, it differs yet 

 more profoundly from the pupa and the chry- 

 salis because from both these organisms the 

 perfect insect springs straightway, whereas 

 that which follows what we are considering is 

 simply a larva like that which went before. 

 I shall suggest, to denote this curious organ- 

 ism, the term pseudochrysalis; and I shall 

 reserve the names primary larva, secondary 

 larva and tertiary larva to denote, in a couple 

 of words, each of the three forms under 

 which the Sitares possess all the character- 

 istics of larvae. 



Although the SItarls, on assuming the form 

 of the pseudochrysalis, is transfigured out- 

 wardly to the point of baffling the science of 

 entomological phases, this is not so in- 

 ii8 



