INSECTS AFFECTING PARK AND WOODLAND TREES 



50Q 



A large, slender bodied spanworm about 1^ inches long and marked with dark purple 

 brown and reddish markings, occur; on maples in July 



L>rge maple spanworm, Sab u lodes transversata, p. 539 

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



summer Maple leaf stalk borer, Epinotia claypoleana, p. 540 



Maple leaves with irregular, oval holes l / 1Q to */ IO inch in diameter may have been injured 



by this species Maple leaf cutter, Incurvaria acerifoliella, p. 541 



Yellowish, black-spotted, caterpillarlike larvae nearly ^ inch long, feed on the foliage of 



American elms in August Hylotoma scapular is. p. 542 



A brilliant, bottle-green, oval beetle y% inch long, with silvery white, green-marked wing- 

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



Alder leaf beetle, Chrysomela scalaris, p. 542 

 A small, long-snouted weevil about 3/ j6 inch long, with strongly ridged elytra and prettily 

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



Conotrachelus anaglypticus, p. 544 

 A red-headed, black-spined caterpillar about 1 inch long, feeds on elm foliage 



Violet tip, Polygonia interrogationis, p. 544 

 A yellowish, spiny, black-marked caterpillar about 1 inch long, feeds on elm 



Hop merchant, Polygonia comma, p. 545 

 A brown-headed, yellowish brown, spiny caterpillar about 1 inch long, feeds on elm 



Gray comma, Polygonia progne, p. 546 

 A stout, pale green or reddish brown larva about 3 inches 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, Ceratomia amyntor, p. 546 

 Dark striped measuring worms about 1 inch long, defoliate apple and elm trees in early 



spring ....... Spring cankerworm, Paleacrita vernata, 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, Sphinx kalmiae, p. 548 

 A variable, light green caterpillar about 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, Ceratomia undulosa, p. 548 

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

 dark hair pencils arising on the median line, occurs in midsummer on various food- 

 plants Apatelodes torrefacta, p. 549 



