158 XEW YORK STATE MUSEUM 



wick Mr. I )r [. A. Lintner states that he has received this species on 

 maple from Camden ^'. J., and l)r J. 15. .Smith adds linden to this list, 

 thouj^h he states that the species usually occurs in Xew Jersey on willow. 



Parasites. This lari^c species has a number of natural enemies in the 

 Western States at least, though they appear to be somewhat scarce in the 

 East. Messrs Orcutt and Aldrich record rearing the following parasites 

 from this insect : O p h e 1 t e s g 1 a u c o p t e r u s Linn., which they state to 

 be by far the most important parasite since it destroyetl a large lot of the 

 sawtlies under observation. Eight or 10 examples of C r y p t u s n u n c i u s 

 Say were found in one cocoon by these gentlemen and about 20 specimens 

 of L i m n I- r i a f e r r u g i n e i [) e s Aslim., were obtained from smaller 

 cocoons inside those of Cimbex. M e s o c h o r u s m e 1 1 e u s Cress, was 

 reared in small numbers from a cocoon from Egan .S. D., and two specimens 

 of S a r c o \) h a g a c i m !> i c i s Towns, were bred from this sawlly Three 

 small flies, Phora cimbicis Aid., P. m i n u t a Aid., and P. set ace a 

 Aid., were also obtained from cocoons, but these small Oies in all probability 

 are not parasites and live on decaying vegetable mattc-r. 



Remedial measures. This species can easily be controlled by arsenical 

 poisons wherever the\- can be employed to advantage. Professor Bruner 

 also advises hand picking, since the large size of the larvae anil their habit' 

 of dropping at the least disturbance would prove of advantage. It is not 

 at all imposs-ible that in cases where they were excessively abundant, it 

 might pay to destroy the cocoon collected at the base of the trees. 



Bibliography 

 1885 Riley, C. V. L'. .S. Dcp'i Agii> . Rcp'i 1SS4. p. 334-36 

 1890 Packard, A. S. U. S. Ent. Com. 5th Rep t, p. 237, 474, 5S4-87, 633 



Spiny elm caterpillar 

 Jiiivancssa aiitiopa Linn. 

 Large blac k red marked spiny caterjiillars about 2 inches long may be frequently seen 

 in June defoliating the terminal brandies of elm, willow, jioplar and several other trees. 



The depredations of this insect attract considerable attention from time 

 to time. It is common in the butterfly form, though its connection with the 



