lOJ: 



Bulletin IS 7. 



in May. Al^ont tlie middle of June, they are apparently the most 

 numerons and their ravages th(? most conspicuous. 



During the rest of the year the insect would rarely attract the 

 attention of the sharpest-eyed horticulturist. ; 



The pupa stag'e. — By the last week in June, most of the cater- 

 pillars will seem to have disappeared, hut careful search on the 

 injured leaves will reveal small brown, lifeless-looking objects 

 attached openly to the leaf by a few silken threads at their poste- 

 rior end, or they may be hidden in the slight nest or home made of 



30. — Pupce of the palmer-worm ; lateral and ventral vtewfi (ii the left, enlarged 

 Two pupce, natural i>ize, attached to leaves, on the right ; loith pupal 

 home between tioo leaves ii^ lower part of right-hand p)ortion of figure. 



two or three leaves by the caterpillar. These mummy-like brown 

 objects, shown much enlarged at the left in figure 30, are the pupne 

 into which the caterpillars have transformed ; at the right in the 

 same figure, are shown two of these pup?e, natural size, as they 

 were formed on the leaves, and the fastenino- of two leaves too^ether 

 to form a pupal home is also shown. ^'^ In our cages, many pupae 



* The piipre measure 7 to 8 mm. in length and are of a light brown color until 

 the moth is nearly ready to emerge, when they become dark brown. Their gen- 

 eral characteristics are well shown in fiji-ure 30. On the dorsum of the first four 

 abdominal segments there are two slight, shiny, blunt elevations, near the caudal 

 border of the first segment, and near the cephalic border of the others. 



