. Bulletin of the Department of Agriculture. Agriculture; Agriculture. A VI i ItY IN IIYPElU'AJUsn ISM 23 ranges from 25 to 38 days. According to observations made upon aha individuals carried through their development in glass cells, between 3 and 4 days are passed in the egg, about 48 hours is each of the firsl four larval stages, from 4 to 7 days in the Last larval Btage, and 12 to 14 days in the pupal stage. When there is but one gen- eration annually about 11 months are spent in the host cocoon, nearly all of this period as a resting mat lire larva, which is the hibernating form. Unf
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. A VI i ItY IN IIYPElU'AJUsn ISM 23 ranges from 25 to 38 days. According to observations made upon aha individuals carried through their development in glass cells, between 3 and 4 days are passed in the egg, about 48 hours is each of the firsl four larval stages, from 4 to 7 days in the Last larval Btage, and 12 to 14 days in the pupal stage. When there is but one gen- eration annually about 11 months are spent in the host cocoon, nearly all of this period as a resting mat lire larva, which is the hibernating form. Unfertilized females de- posit eggsquite as readily as those that have been mated. The progeny re- sulting from partheno- genetic reproduction are entirely males. ecpelmixus saltator (lixdemaxx) (Fig. 7) The biology of this species has been discussed in detail by McConnell . who studied it par- ticularly in its role as a primary parasite of the Hessian fly. He also states that specimens reared by Phillips from the galls of various species of Harmolita, the joint worms, have been identified as this species. That it is actually prim- ary on the Hessian fly has been demonstrated by McConnell by breeding it experimentally upon puparia known to have been free trom other parasites. The writers have definitely determined that it is frequently hyperparasitic by rearing hundreds of specimens from field-collected cocoons of Apantt h s melanoscelus. They have also bred it in the laboratory upon this primary parasite. As a parasite of Apanteles in New England, Ewpdminus saltator -'â ems in general to have three generations annually, although there is -Mine variation in this. The first adults appear about the end of May or the first of June. The first-generation cocoons of the Apan- teles, which are formed soon afterward, are sometime- extensively parasitized; and the female hyperparasites emerging from these cocoons attack the second brood of Apanteles. Normally 24 to 30 days arc required fo
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