Insects, etc., Injurious to the Plum. 



373 



from the slugworm attack, also, in that the damaged areas are 

 smaller and usually somewhat rounded in form. They become brown, 

 giving the leaves a spotted appearance wliich in the distance might 

 be taken to be some fungus work. As the larvre grow they become 

 more ravenous and eat out large holes in the leaves which shrivel 

 up, and the tree presents a scorched appearance (Figs. 245 and 246). 



LKAF TIA5IAGEI1 BV 

 'LU3I LEAF .SAWFLY 



\F. Edeiiih'ii. 

 LARV.E OF THE 



Life-History and Habits. 

 The parent of these leaf-destroyers appears in May, sometimes 

 early in the month, at others even as late as June. The female 

 is black; the thorax shiny with scattered greyish down, and two 

 dull white spots. The abdomen is mainly black, with scattered 

 pale, very fine hairs. Legs white, except for the middle of the 

 femora, apex of tibiae and posterior tarsi which are black, but much 

 variation exists, sometimes the femora are all white, at others all 



