18 BULLETIN 250, U. S. DEPARTMENT OF AGRICULTURE. 
AMERICAN LINDEN (Tilia americana L.). 
All field observers agree in calling this a favorable food for the gipsy-moth 
larve. It is eaten freely by all stages and is especially favored during the first 
three larval stages. ; 
In the trays a fair percentage of adults were obtained from first-stage larve. 
EUROPEAN LINDEN (Tilia sp.’ L.). 
Mr. Schaffner notes considerable feeding on this species by second and third 
stage larve. 
In the trays this species did not seem to be as favored as the preceding one; 
the larve died rapidly and none pupated, although several reached the fifth 
stage. 
Brack Locust (Robinia, pseudoacacia L.). 
Slight feeding by all stages of the gipsy-moth larve has been observed in the 
field in mixed growth, where the infestation was bad. 
In the trays the larve fed very sparingly and died rapidly. -None before the 
third stage were carried tc the adult stage, and all those reared were male 
moths. It is an unfavored species. 
HoneY Loctst (Gleditsia triacanthos .). 
Results of the tray work show that this species ranks the same as the 
preceding. 
No observations have been made in the field on honey locust. 
PEPPER-BUSH (Xolisma ligustrina [1L..] Britton). 
Slight feeding by gipsy-moth larve in all stages has been observed on this 
species in the field. 
In the trays, feeding was very slow and little or no growth resulted. It is 
an unfavored species. 
MountTaIn Mapre (Acer spicatum Lam.). 
No field observations have been made on this maple. : 
In the trays the first-stage larve fed freely, but after passing into the 
second stage feeding was much less, and none developed beyond the third stage. 
Very little feeding occurred in the later stages and no adults were obtained. 
NoRgway MApPLe (Acer platanoides L.). 
Adults, both male and female, were obtained from the trays started with 
first-stage larvee on this foliage. The larve fed freely, especially in the later 
stages, and grew to good Size. 
No field observations were made on this maple. 
Norway maple and the box elder are the most favored species of the maples. 
They are not as freely eaten, however, as many other food plants. 
17. platyphyllos and T. vulgaris are the lindens usually included by nurserymen as 
T. europea, hence -the designation Tilia sp. is adopted in the absence of specific determi- 
nation, 
