XIV 



LIST OF ILLUSTRATIONS 



PAGE 



Insect Visitors to the Milkweed 

 {Asclcpias cornuti). The in- 

 sects are the red-spotted bee- 

 tles {Tetraopes tetraophihal- 



mus). Colored plate 36 



Swamp Milkweed {Asdepias 



incarnata) 37 



The Hutterfly Milkweed, Golden- 

 rod, and Insect Guests. Initial 



drawing 40 



Ruby-throated Ilumming-bird. 



Initial drawing 42 



Bill, Head, and Feathers of Ruby- 

 throated Humming-bird, show- 

 ing how pollen of plants is 



carried 45 



Male Ruby-throated Humming- 

 bird (7'r«f/ii7«.v ro/M/^ri.v) ... 48 

 Spiny (ialls on Wilch-hazcl, and 



Plant Lice. Initial drawing . 49 

 Spiny Gall on Witch-hazel, show- 

 ing the gall-producing aphid 

 {Ilamamclides spino.ins) in the 

 act (tf leaving the gall. . . 51 

 Wild Bergamot {Monarda fi.stu- 

 losa) and its little yellow but- 

 terfly visitor, Tcrria.i lisa . 55 

 Troilus Butterfly visiting the 

 Cardinal Flowi-r (Lobelia car- 

 dinal ix) 57 



"Moth {T ilea poly plum II. i) . ... (iO 

 Polyphemus Caterpillar on bass- 

 wood in contracted attitude. . 61 

 Protective resemblance in the 

 Snout Butterfly (Libythca back- 



manni) 64 



Tree Toafl {Ilyla versicolor) ... 73 

 Male Walking-stick {Diaphcro- 



mera femorata) 77 



Leaves of Red Oak, showing 

 Walking-stick protected by its 

 resemblance to veins of the 

 leaf, and Round-wing Katydid, 

 almost invisible against leaf 



background 79 



W ild Goo-seberry Branch showing 



PAGE 



young green Walking-sticks 

 (Diapkeromera femorata) on 

 the upper surface of the leaves . 81 

 Dune landscape, showing habitat 

 of Orange-tipped Butterfly. 



Initial drawing 83 



Orange-tipped Butterfly {An- 

 tkocharis genntia), resting on 

 flowers of Arabis lyrata. Col- 

 ored plate 84 



Datana Moth. Initial drawing. 86 

 Two Moths (Datana contractu) . 87 

 Moth (Datana angnssi) viewed 

 from above, showing markings 

 in simulation of a dried, 



rolled leaf 89 



Datana Caterpillars grouped at 

 the top of a branch in sim- 

 ulation of a flower 91 



Ge<mietrid Moth. Initial droning 93 

 Acontia and Stenoma Moths. 



Initial dratcing 94 



Geometric! Larva on twig of 



Sassafras 95 



Moth (Acontia crastriodes) and 

 bird excrement which it re- 

 sembles 96 



Moth (Stenoma .schlaegeri) on 

 upper surface of Strawberry 



Ix-af 97 



CatcK-ala Larva blending with the 



color of a twig. Initial drawing 99 

 Weevil on Oak Bark. Initial 



photograph by C. T. II ills . . 101 

 Thread-legged Bug and Walking- 

 stick. Initial photographs . . 105 

 Bumble Flower Beetles and Oak 



Trees. Initial drauing . . . 107 

 Bumble Flower Beetle and 



Bumblebee 109 



Schizura Caterpillar. Initial 



photograph 110 



Case of protective resemblance 

 both in form and color — the 

 caterpillar Schizura ipomco! 

 feeding on dogwood leaf . . . Ill 



