arise from each end and shorter ones along the 
Sidesics:)...5e). qe ee tere Cnidocampa flavescens. 
(3) Various hardwoods and shrubs—Body with 9 pairs of 
lateral brown processes, the 3rd, 5th, and 7th pairs 
curved, twisted, and longest. These processes 
clothed with stinging hairs 
Phobetron pithecium. 
14. Typical caterpillars 
Clothed with ‘harrs7or“bristles/2) 5 eee eee 
Row of branched spines across top of each body 
SEOMENE iLA.SIOROe Le Oe ee eee 
Body naked or sparsely hairy; horny or wart-like 
tubercles or spines on some segments 00... 
Body naked; a prominent horn or eyelike tubercle on 
Sthiabdominalseoment.) .<cen So) nee 2 eee 
Body naked; one or more prominent dorsal humps on 
eachsabdominalysecment 2) see eee 
Body naked; anal projections ending in stemapoda 
or modified anal legs, or head armed with antlers 
Body naked (loopers or measuring worms) ................... 
Body without prominent tubercles or filaments on 
dorsumiss5-pairs-abdominal, lees) 225 eb2 2a) ae 
15. Borers 
Ins budsStemss Shoots: twits: sce eee ee 
Inj fruit; nuts; cones Seeds) (hon -laiew ai eens eee ee 
Insbark wood, roots 2. = eb 5 ee eee ee 
16. Hairy, gregarious, raise front and rear ends when 
disturb@d) sess: ostielen dart oe oe ea eater eet ee 
Hairy or bristly; solitary or gregarious; body prominently 
marked but with hair pencils, brush-like tufts, or 
TUSSOCKSic:. 24.2 =. Shatin ieee Rares Tete Rican odice . Aiee Does 
Hairy or bristly; with long hair pencils, brushlike tufts, or 
GUSSOCK Sy ain) sete ie Letra eas eee eee ole 
17. (1) Apple, birch, basswood, elm, oak, ete—Head black; 
neck with yellow ring; cervical shield waxy yellow; 
body black with narrow, yellow stripe 
Datana ministra. 
(2) Oak, beech, gray birch, hickory, butternut—Similar to 
ministra except for an entirely black cervical 
STS hag ie ates fey ius aks ie ay one Datana angusi. 
(3) Oak and sycamore—Head and neck black; cervical 
shield waxy orange-yellow; body black, with white 
or yellow stripes; clothed with longish hairs 
Datana contracta. 
(4) Walnut, butternut, hickory—Head and body black; 
clothed with long, dirty white hairs 
Datana integerrima. 
(5) Apple, azalea—Head, cervical shield, legs mahogany 
red; body black with a broken white line 
Datana major. 
(6) Sumac—Head dark red or black; shield reddish- 
brown; anal plate blackish; body yellow with 
reddish to blackish stripe ...........Datana perspicua. 
280 
iw) 
(o6) 
