CATALOGUE OF INSECTS. 



613 



CIMBEX Oliv. 



Fig. 288. — Willow saw-fly, Cimbex americana ; a, willow leaf, showing egg-blisters ; b, twig with girdlings ; 



c > e ggi enlarged; d, newly-hatched larva, enlarged; e, e, larva;; /, cocoon; g, same, cut open to 



show pupa ; h, pupa ; i, male adult ; _/, k, ovipositor of female and its tip, enlarged. 



C. americana Leach. The larva is found throughout the State on willow, 

 elm, poplar and linden, though chiefly on willow. The imago is seldom 

 seen. Woodbury, VI (Jn), Caldwell (Cr), Newark, Ft. Lee (Bt). 



