19 



p[)lit8 ojieii and the Aegeria o.srai)es aii<l crawls upward on the I)ark 

 for a few iiielies wlieii, in tlie coiir.se of (he niiuntcs, (lie wings of the insect 

 are fully developed and ready for flight. Its lirst attem})ts are made 

 with a jerking ilight outward and upward for a distance of two feet 

 from tlie trunk, wluch it returns to witliin a few inches of its starting 

 l)oint. It is then easily captured by placing the cyanide l)ottle over it. 

 In the sunlight the peculiarity of the striped legs of this species in 

 flight makes it quite conspicuous, it can be easily recognized at some 

 considerable distance. It is a matter of surprise that a single tree 

 could nourish so many i)arasites, bear fruit and still survive for five 

 years. A large number of larvae must have been desti'oyed dur- 

 ing the last two winters; the tree has been visited several times by 

 the Hairy AVoodpecker, Ficus riUosvs, and at each visitation the 

 insect-feeding l)ird has Avorked industriously for a considerable length 

 of time, exploring the bark in search of larva and undoubtedly suc- 

 ceeding in storing its crop with many examples. The following de- 

 scription of the Plum-tree borer is partly ttdcen from (irote and 

 liobinson's original paper. 



The full grown larva is about 18 m. m. in length, of a palo yellow 

 color. The prothoracic segment is yellowish brown aV)ove with darker 

 edges. The head is bright mahogany brown, with a few scattered 

 hairs; mandibles almost black Avith three strong teeth. The G, 7, 8 & 

 0th segments are provided with false feet. The segments have a 

 l)rown dot on each side, which give rise to single light colored 

 hairs, besides these there are two or three hairs on each segment, 

 which form with those on the dots a line across the back. — The 

 pupa is about KJm. m. in length, brownish A'ellow, shining. The 5, 

 (!. 7, 8 and 0th abdominal segments have two rows t)f teeth on the 

 ujiper largest half; one row of these teeth is always larger than the 

 other row on the same segment; these teeth increase in size towards 

 the anal segment. The pre-anal and the anal segments have but 

 one row of teeth, those on the latter being four or fi\e times as 

 large as the others, fewer in number and further apart. The abdo- 

 minal tip is roughened. The rocfjon is formed of powdered wood 

 closely stuck together with silk and a gummy secretion; it is oval 

 and about 20 m. m. in length. The color of the insect is bluish 

 black. Form rather slender. Eyes encircled with yellowish white 

 scales and similar scales are at tlie Ijase of the head above arranged 

 longitudinally. The antennae arc long, concolorous, bluish l)lack. 

 Labial paljii beneath, yellowish white, above these are l)lackish. 



