Notes on several Insects not heretofore recorded from New Jersey.
The sawfly, Janus abbreviatus, Say, occurs as a rule in nurseries, the larvae living in the twigs of poplar and willow about the base of the trees. In the late summer the tips of the shoots die back and turn black in consequence of these attacks. Diprion simile, Htg., the European pine sawfly, was found for the first time in New Jersey in the summer of 1916, the attacks being confined to pine trees in nurseries. The insects were heavily parasitized by the Chalcid, Monodontomerus dentipes, Boh. Phytomyza aquilegiae, Hardy, the columbine leaf-miner, destroys the foliage early in the season, but later appears to be less destructive. The cockroach, Blaberus discoidalis, Serv., is frequently found in orchids imported from South America.