Fifth report of the United States Entomological Commission, being a revised and enlarged edition of Bulletin no7, on insects injurious to forest and shade trees . Fig. \W.—Pimpla eonquisitor: a, larva; b, head of do. from front; c,pnpa; d, adult female (hair line indicating natural size); e, end of maleahdomen from above; /, same from the side—all enlarged. (After Riley.) found very abundantly in the Bags, but may be a secondary parasite. (7) Dinoearsisthyridopterygis Ashmead.* This parasite was bred from the bags in Florida by H. Ashmead, who believes it to be parasitic on the eggs
Fifth report of the United States Entomological Commission, being a revised and enlarged edition of Bulletin no7, on insects injurious to forest and shade trees . Fig. \W.—Pimpla eonquisitor: a, larva; b, head of do. from front; c,pnpa; d, adult female (hair line indicating natural size); e, end of maleahdomen from above; /, same from the side—all enlarged. (After Riley.) found very abundantly in the Bags, but may be a secondary parasite. (7) Dinoearsisthyridopterygis Ashmead.* This parasite was bred from the bags in Florida by H. Ashmead, who believes it to be parasitic on the eggs. (8) Tachina Fig. lOl.—Hemiteles thyridopterigis: a, male ; 6, female;e, sack of bag-worm cut open, showing cocoons of parasite,natural size. (After Riley.) We have bred a large bluish Tachinid from the bags. Its eggs are commonly attached to the bags externally, near the neck, and the young larvae, on hatching,work their way into the case. TTiey frequently fail, however, to reach the Bag-worm. 34. THE WHITE-SPOTTED TUSSOCK-MOTH. Orgyia Jeucostigma (Abbot and Smith). The caterpillar of this moth is now and has been for some time amost grievous pest in our cities. We have observed it on BostonCommon, where for years, as stated by the late Dr. Brewer, it has beeninjurious to the elms, as well as the maples. Though the species ex-tends from Maine and Canada to the Southern States, it is most abun-dant in the ITew England and Middle States, and more common in *Mr. Ashmeads description (Canadian Entomologist, XVIII, No. .>, p. 97, May(1886), shows that this species can not belong to Dinoearsis, as
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