36 MODERN ARRANGEMENT OF 



of extreme tenuity ; this it has the power of lengthening at 

 will, by which it swings itself to the ground, and ascends at 

 pleasure. The species destitute of posterior feet, suspend them- 

 selves by the extremity of the body like the caterpillars of some 

 butterflies. The time which the Phalscnse remain in the chry-. 

 salis form, varies in different species. A great number become 

 perfect insects towards the end of summer. These all perish 

 after having secured the reproduction of their ova ; but those 

 which do not undergo their metamorphosis till autumn, conti- 

 nue during winter in the pupa state, and assume the imago or 

 perfect condition in the following spring. 



FAMILY VII. CRAMBITES, Latreille. 



I. Wings in a flattened slope, and forming a triangle with the 

 body. 



The genera are BOTYS, HYDROCAMPUS, AGLOSSA, and 

 ILITHYA. 



II. Wings hanging almost vertically on each side of the body, 

 and ascending posteriorly, or rolled around it ; the upper ones 

 long, narrow, and the lower broad. 



The genera are GALLERIA, CRAMBUS, and ALUCITA. 



Genus CRAMBUS, Latreille. 



Insects are provided with four palpi, the lower ones 

 large and projecting; wings rolled around the 

 body in a cylindrical form ; antennae setaceous. 



FAMILY VIII. PTEROPHORITES, Latreille. 



Wings, or at least two of them, cleft, or digitate ; 

 body slender and elongated; feet long; antenme 

 simple ; spiral proboscis distinct ; wings some- 



