Eleventh Report of the State Entomologist 159 



The severed ends of the silken anchoring cables described by Dr. Clemens 

 may be seen at the ends of the cases (Fig. lo). 



Items in its Life-History. 

 Dr. Clemens mentions finding the larvae mining leaves in the latter 

 part of August and in September, from which one may infer that he 

 failed to find them at other times. The cases received from Dr. Dyar 

 were made during the last half of September. Mr. Chambers found 

 larvae of all the species as early as July ist, and in increasing numbers 

 from that time until the fall of the leaves. He succeeded in rearing A. 

 cornifoliella in the latter part of July from leaves gathered in that month. 

 The other species he was unable to rear except from mines gathered in 

 the autumn. It would thus appear quite probable that there are two gene- 

 rations of this insect in a season. There is no record of the time required 

 to complete the life-cycle, except that of the autumnal brood, and even 

 that is not complete. 



An Allied Species. 



This insect is similar in habit to the resplendent shield-bearer, 

 Aspidisca splendoriferella Clem., which mines the leaves of the 

 apple-tree in a similar manner and has also the same habit of cutting 

 cases from the leaves in which the larvae pass the winter and pupate and 

 from which the pretty moths emerge the following May. Unlike 

 Antispila tiyssafoliella, the resplendent shield-bearer does not allow its- 

 case to fall to the ground, but fastens it securely to a twig or branch of 

 the tree. 



Remedy. 



In the event of the insect multiplying to the extent of becoming 

 injurious to species of Nyssa grown for ornament, either by mining the 

 leaves or riddling them with holes, an effective remedy should be found in 

 thoroughly spraying the ground beneath the attacked trees in the late 

 autumn or early spring with undiluted kerosene or a strong kerosene 

 emulsion. This would reach and kill the insect within the fallen pupating 

 cases remaining underneath the tree, securely anchored to the dead grass 

 or other permanent objects instead of to the leaves which would easily be 

 carried away by winds. 



