INSECTS AFFECTING PARK AND WOODLAND TREES 5O9 



A large, slender bodied spanworm about i J^ inches long and marked with dark purple 

 brown and reddish markings, occuri on maples in July 



Large maple spanworm, S a b u 1 o d e s t r a n s v e r s a t a, p. 539 

 Small caterpillars boring maple or buckeye leaf petioles cause the foliage tc drop in early 



summer Maple leaf stalk borer, K j) i n o t i a clay p o 1 e a n a, p. 540 



Maple leaves with irregular, oval holes '/.o to */„ inch in diameter may have been injured 



by this species -Maple leaf cutter, Incurvaria a c e r i f o 1 i e 1 1 a. p. 541 



Yellowish, black-spotted, caterpillarlike larvae nearly 3/( in. h long, feed on the foliage of 



American elms in August Hylotoma scapularis, p. 542 



A brilliant, bottle-green, oval beetle ',i inch long, with silvery white, green-marked wing- 

 covers, feeds on the leaves of elm. linden, willow and alder 



Alder leaf beetle. C h r y s o m e 1 a s c a 1 a r i s, p. 542 

 A small, long-snouted weevil about V.f, inch long, with strongly ridged elytra and jjrettily 

 marked with dark brown, yellowish white and reddish brown, occurs on elm 



C" o n o t r a c h e 1 u s a n a g 1 y p t i c u s, ]). 544 

 A red-headed, black-spined caterpillar about i inch long, feeds on elm foliage 



Violet tiji, 1' o 1 y g o n i a i n t e r r o g a t i o n i s, j). 544 

 A yellowish, spiny, black-marked caterpillar about i in( h long, feeds on elm 



Hop merchant, P o 1 y g o n i a c o m m a, p. 545 

 A brown-headed, yellowish brown, spiny caterpillar about i inch long, feeds on elm 



Ciray comma, P o 1 y g o n i a p r o g n e, p. 54^' 

 A stout, pale green or reddish brown larva about 3 in<hes long, with a conspicuous caudal 

 horn and four large, tubercular elevations on the thoracic segments, occurs in early 

 September on elm, beech, linden and probably ash 



Four-lined sphinx. C e r a t o m i a a m y n t o r, p. 546 

 Dark striped measuring worms about i inch long, defoliate apple and elm trees in early 



spring Spring cankerworm, Paleac ri t a v e rn a t a, p. 547 



A stout, apple-green caterpillar 3 inches long, with seven oblique stripes on, each side and 

 a light blue caudal horn, feeds on the leaves of ash, lilac and mountain laurel 



Ash sphinx, S j) h i n x k a 1 m i a e, p. 54'"^ 

 A variable, light green caterpillar about i J^ inches long, with reddish legs and caudal horn 

 and a series of seven oblique white stripes on each side of the body, feeds on the 

 foliage of white and black ash, lilac and privet 



Wavy ash sphinx, C e r a t o m i a u n d u 1 o s a, ]>. 548 

 A pretty, yellowish or whitish, long-haired caterpillar about i'^ inches long, with three 

 dark liair pen. ils arising on the median line, occurs in midsummer on various food- 

 plants Apatelodes torrefacta, p. 549 



