ILLUSTRATIONS. 11 



Page. 

 Fig. 11. Map showing various localities in Europe from which parasite material 



has been received 169 



12. Anastatus bifasciatus: Adult female 170 



13. Anastatus bifasciatus: Uterine egg , 171 



14. Anastatus bifasciatus: Hibernating larva 171 



15. Anastatus bifasciatus: Pupa from gipsy-moth egg 171 



16. Diagram showing two years' dispersion of Anastatus bifasciatus from 



colony center 173 



17. Schedius Jcuvanse: Adult female 176 



18 . Schedius Jcuvanse: Egg 179 



19. Schedius Izuvanx: Third-stage larva still retaining attachment to egg 



stalk, and anal shield 180 



20. Schedius huvanx: Pupa . 180 



21. Schedius huvanx: Egg stalk and anal shield of larva as found in host 



eggs of gipsy moth from which the adult Schedius has emerged, or in 



which the Schedius larva has been attacked by a secondary parasite . 181 



22. Schedius huvanx: Larval mandibles 181 



23 . Tyndarichus navse: Larval mandibles 181 



24. Pachyneuron gifuensis: Egg 182 



25. Pachyneuron gifuensis: Larval mandibles 182 



26. Anastatus bifasciatus: Larval mandibles 182 



27. Gipsy-moth egg mass showing exit holes of Schedius huvanx 186 



28. Apantales solitarius: Adult female and cocoon 189 



29 . Limnerium disparis: Cocoon . 191 



30. Limnerium disparis: Adult male 191 



31. Apanteles fulvipes: Adult 193 



32. Apanteles fulvipes: Larvae leaving gipsy-moth caterpillar 194 



33. Apanteles fulvipes: Cocoons surrounding dead gipsy-moth caterpillar. „ 195 



34. Apanteles fulvipes: Cocoons from which Apanteles and its secondaries 



have issued 199 



35 . Blepharipa scutellata: Adult female 213 



36. Blepharipa scutellata: Eggs in situ on fragment of leaf 214 



37. Eggs of Blepharipa scutellata and Pales pavida 214 



38. Blepharipa scutellata: First-stage larvae 215 



39. Blepharipa scutellata: Second-stage larva in situ 215 



40. Blepharipa scutellata: Basal portion of tracheal "funnel " 216 



41. Compsilura concinnata: Adult female and details 219 



42. Map showing distribution of Compsilura concinnata in Massachusetts . 222 



43 . Tachina larvarum: Adult female and head in profile 225 



44. Chalcis flavipes: Adult 241 



45. Chalcis flavipes, female: Hind femur and tibia,, showing markings... 242 



46. Chalcis obscurata, female: Hind femur and tibia, showing markings . . 242 



47. Chalcis flavipes: Full-grown larva from gipsy-moth pupa 243 



4S. Chalcis flavipes: Pupa, side view 243 



49. Chalcis flavipes: Pupa, ventral view 243 



50. Gipsy-moth pupae, showing exit holes of Chalcis flavipes 243 



51. Monodontomerus xreus: Adult female 244 



52 . Monodontomerus sereus: Egg 249 



53. Monodontomerus xreus: Larva 249 



54. Monodontomerus xreus: Pupa, side view . '. . .-_• 249 



55. Monodontomerus xreus: Pupa, ventral view._ 249 



56. Gipsy-moth pupa showing exit hole left by Monodontomerus xreus 250 



57 . Trichogramma sp . in act of oviposition in an egg of the brown-tail moth . 256 



