DFA'K.LOl'M KNT 



'75 



of Melanoplus difl'crcnlialis and eats the eggs of that grass 

 hopper. After a moult the second larva ( carahiduid form) 

 appears; this (B) is soft, with reduced legs and mouth parts 

 and less active than the triungulin. A second moult and the 

 scaralxeidoid form of the second larva is assumed; the legs 



FIG. 217. 



Stages in the hypermetamorphosis of Epicauta. A, triungulin; B, carabidoid stage 

 of second larva; C, ultimate stage of second larva; D, coarctate larva; E, pupa; F, 

 imago. E is species cinerea; the others are vittata. All enlarged except F. After 

 RILEY, from Trans. St. Louis Acad. Science. 



and mouth parts are now rudimentary and the body more 

 compact than before. A third and a fourth moult occur with 

 little change in the form of the second larva, which is now in 

 its ultimate stage (C). After the fifth moult, however, the 

 coarctate larva, or pseudo-pupa, appears; this (D) hibernates 

 and in spring sheds its skin and becomes the third larva, which 

 soon transforms to a true pupa (E), from which the beetle 

 (F) shortly emerges. Thus the pupal stage is preceded by 

 at least three distinct larval stages. 



In the anomalous beetle Stylops, the males are winged, but 

 the females are maggot-like and sedentary, living in the bodies 

 of bees and wasps. Packard found as many as three hundred 



