60 FOREST ENTOMOLOGY. 



Synopsis of the Species. 



Size large, elytra contracted towards the extremity, without any distinct 

 patches ; body covered with greyish-yellow hairs ; legs dark 



>S. carcharias. 

 Size smaller, elytra cylindrical ; thorax with yellowish side band ; 

 each elytron with four or five yellowish Hecks . S. populnea. 

 I am indebted to friends for the specimens in my collection, but as 

 I have not had any opportunities of studying this genus in the forest, 

 the following account of the two species is taken from Professor 

 Fisher's ' Forest Protection ' (Schlich, vol. v., 1907 edition). 



Saperda carcharias, L. (Large Poplar Longicorn). 



Descnption. — Beetle (tig. 57) 23 to 30 mm, long, grey or brownish- 

 yellow, dotted with many shining black points. Thorax short and 



Fig. 58. — Iccn' 0/ Saperda 

 Fig. 57.— Saperda carcharias. (From ' Forest carcharias. (From 'Forest 



Protection,' by W. R. Fislier.) Protection, 'by W. R. Fisher.) 



cylindrical. Elytra with the shoulders prominent, narrowed pos- 

 teriorly, and bluntly spined at the apex. 



Larva extending up to 36 mm. in length, without legs, cylindrical, 

 yellowish-white, with the mandibles and segmental shields brown, the 

 latter on the dorsal surface of segments 3-10, and the ventral surface 

 of segments 2-10 (fig. 58). 



Life-Mstorii. — Season for flight : June and July. 



The eggs are laid in June in crevices in the bark of poplars, 

 especially near the ground. 



