INSECT ENEMIES OF EASTERN FORESTS 
KEY TO LEPIDOPTEROUS LARVAE—Continued 
20. Caterpillars bearing transverse rows of prominent branched 
spines—Continued 
Head black; body reddish to blackish on dorsum, dotted with 
light green; spines below spiracles usually light and those 
above are black; on birch. May—July 
N ymphalis j-album (Bdv. and Lec.), p. 369. 
Head bilobed, black; body black sprinkled with aha dots: 
a black dorsal line interrupted by a row of 7 or 8 reddish 
spots; spines black; abdominal legs reddish; on elm, poplar, 
and willow. May —September_ Nymphalis antiopa (L. . p. 369. 
Head pea green, glossy, ocelli black; body pea green; a broad 
reddish spiracular stripe, below which is a white stripe and 
another reddish line; spiracles yellowish narrowly ringed with 
black; most of spines yellowish tipped with black; on decid- 
uous erowth. July-September _ __ Automeris io (F.), p 380. 
Head reddish brown; body dull brown to blackish, cov ei with 
small, pale yellowish dots; spiracles pale; narrowly oval; 
clothed with bristles and compound spines ; bristles rusty 
brown tipped with black; compound spines black or banded 
with white; on oak. May- —August 
Hemileuca mara (Drury), p. 380. 
Similar to H. maia, but with a broken yellowish subspiracular 
stripe and spines shorter; on spiraea 
Hemileuca lucina Hy. Edw., p. 380. 
Zils Ehoraxsbearingslong- prominent spines: 22= 52 as ea ee ee 
Spines short and blunt, some merely enlaneed Guloencles yas = a= 
22. AGsinglenpairoflongespinesion) thorax22 =o 222 oes eee 
Two or more pairs of prominent spines on thorax______________-_ 
23. Spines on second thoracic segment large, barbed and club-shaped; 
dorsum of some of segments angular; length about 1% inches; 
head bilobed and covered with small sharp tubercles 
Basilarchia spp., p. 370. 
Spines on second thoracic segment stiff, slender and about as long as 
body is thick; other spines short_________- Anisota spp., p. 381. 
Head cherry red; body pale tawny red with white granulations; 
on hazelnut and oak. July-September 
Anisota stigma (F.), p. 381. 
Head jet black; body with black and yellow or orange stripes; 
onoak. July—October__Anisota senatoria (A. & 8.), p. 381. 
Head greenish to light brown; body greenish to grayish with 
white granulations; a subdorsal and a lateral pink stripe; anal 
plate and anal legs amber colored; on oak. July—October 
Anisota virginiensis (Drury), p. 382. 
Head cherry red; body pale yellowish green with 7 dark green or 
blackish longitudianl lines; on maple. June—October 
Anisota rubicunda (F.), p. 3838. 
24. All spines stout and black; the largest pair situated on the first ab- 
dominal segment; the head and a dorsal hump on the first ab- 
dominal segment red; length about 1 inch. Head black in the 
earlier instars seagate ale Seca, Oe Schizura concinna (A. & 8.), p. 404. 
Two pairs on thorax and the caudal horn much larger than others 
and yellow with black prickles; body green; secondary hairs 
conspicuous; caterpillars large_Hacles imperialis (Drury), p. 384. 
Five pairs on thorax and the caudal horn long and spiny; others 
smaller; body bluish green to brownish; caterpillars large 
Citheronia regalis (F.), p. 3838. 
25. Thorax bearing one or more pairs of short and blunt tubercles or 
spines. 
Spines short and blunt, but prominent, subequal in length. 
Two pairs of tubercles on thorax and one on eighth ab- 
dominal segment yellow or reddish, others rudimen- 
tary. Body bluish white; length about 2 inches 
Callosamia promethea (Drury), p. 379. 
Two pairs of tubercles on thorax modified into knobs, 
others more or less rounded; those on dorsum red and 
yellow, others bluish; all bearing short black spines; 
body bluish green; large__- Samia cecropia (L.), p. 377. 
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