ILLUSTRATIONS. 



PLATES. 



Page. 



Plate I. Calosoma sycophanta Frontispiece. 



II. Fig. 1. — View of parasite laboratory at North Saugus, Mass. 

 Fig. 2. — View of parasite laboratory at Melrose Highlands, 



Mass 56 



III. Fig. 1. — Roadside oak in Brittany, with leaves ragged by 

 gipsy-moth caterpillars. Fig. 2. — M. Rene Oberthur, Dr. 

 Paul Marchal; with roadside oaks ragged by gipsy-moth 



caterpillars 76 



IV. Fig. 1. — Caterpillar hunters in the south of France, under M. 

 Dillon, 1909. Fig. 2. — Packing parasitized caterpillars at 

 Hyeres, France, for shipment to the United States, 1909... 76 

 V. Fig. 1 — View of interior of one of the laboratory structures, 

 showing rearing cages for brown-tail moth parasites. Fig. 

 2. — Box used in shipping immature caterpillars of the gipsy 



moth from Japan 152 



VI. Different stages of the gipsy moth (Porthetria dispar) 156 



VII. Different stages of the brown-tail moth (Euproctis chrysorrhcea) . 160 

 VIII. Fig. 1. — Boxes used in 1910 for importation of brown-tail moth 

 caterpillars, with tubes attached directly to boxes. Fig. 

 2. — Interior of boxes in which brown-tail moth caterpillars 

 were imported, showing condition on receipt. Fig. 3. — 

 Boxes used in shipping caterpillars of the gipsy and brown- 

 tail moths by mail 164 



IX. Fig. 1. — Headgear devised by Mr. E. S. G. Titus as a protection 

 against brown-tail rash. Fig. 2. — Show case used when 

 opening boxes of brown-tail moth caterpillars received from 



abroad 164 



X. Fig. 1. — Large tube cage first used for rearing parasites from 

 imported brown-tail moth nests and latterly for various pur- 

 poses. Fig. 2. — Method of packing Calosoma beetles for 



shipment 164 



XI. Fig. 1. — Egg of gipsy moth containing developing caterpillar 

 of the gipsy moth. Fig. 2. — Egg of gipsy moth, containing 

 larva of the parasite Anastatus bifasciatus. Fig. 3. — Egg of 

 gipsy moth, containing hibernating larva of Anastatus bifas- 

 ciatus which in turn is parasitized by three second-stage 



larvae of Schedius kuvanse 172 



XII. Fig. 1. — View of cage used for colonization of Anastatus bifas- 

 ciatus in 1910. Fig. 2. — Views of cage prepared for use in 



colonization of Anastatus bifasciatus in 1911 172 



XIII. Outdoor parasite cage covered with wire gauze 204 



XIV. Outdoor parasite cages covered with cloth 204 



XV. View of large cage used in 1908 for tachinid rearing work ...... 204 



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