99 Imp 



Hypoptere. — Another term for the tegula?. (Gr, 

 hypopteros, winged.) 



Hystolysis. — The decay and dissolution of the 

 organic tissues and blood, it includes the 

 numerous forms of retrograde metamorphosis 

 and degeneration. The change of the organic 

 tissues during pupation. (Gr. histos, and lusis, 

 a parting from lyo, to loosen.) 



Ileum. — The proximal end of the small intestine. 

 (Gr. eilo, to roll.) 



Imagal, Imaginal. — Pertaining to the imago. (L. 

 imago.) 



Imago. — The perfect state of the insect, (L. 

 the image.) 



Imaginal buds. — Rudiment-groups of cells from 

 which arise the organs of the imago during 

 pupation ; and which may be seen in the larva. 

 (From L. imago, and Du. hot, a bud.) 



Imbricate. — Overlapping one another, like tiles on 

 a roof. (L. imbrex, a gutter-tile, from imber, a 

 shower.) 



Imperfect. — Not complete or perfect ; unfinished. 

 (L. im,=in, not, and perfectus, finished.) See 

 Incomplete metamorphosis. 



Impression. — Punctuation ; any marking upon the 

 surface ; an indentation ; a depression. (L. 

 impressare, from imprimere, to press upon.) 



Impunctate. — Without punctuation. — (L. in, not, 

 and punctum, to prick.) 



