. The American entomologist. Entomology. 72 THE AMERICAN ENTOMOLOGIST. ping an egg along with a minute drop of poison into eacli puncture. Until the following spring these eggs always lie dormant, as in many other such cases; for Dr. Fitch is altogether wrong in asserting that there are two distinct broods of Wool-sower Gall-flies every year, generating two distinct sets of galls.* Wo have examined hundreds of these galls at all seasons of the year; and never yet did we find one at a later period than the end of July, that was not bored up, empty and untenanted. In fact, it is not often that t
. The American entomologist. Entomology. 72 THE AMERICAN ENTOMOLOGIST. ping an egg along with a minute drop of poison into eacli puncture. Until the following spring these eggs always lie dormant, as in many other such cases; for Dr. Fitch is altogether wrong in asserting that there are two distinct broods of Wool-sower Gall-flies every year, generating two distinct sets of galls.* Wo have examined hundreds of these galls at all seasons of the year; and never yet did we find one at a later period than the end of July, that was not bored up, empty and untenanted. In fact, it is not often that they remain on the twigs through the winter; for when ripe they are attached so very slightly to the twig upon which they grow, that they can readily be slipped up and down like the beads of a rosary, and the least lateral jerk displaces them entirely. The Leafy Oak-sail. (Qiiercus fnniosa ? Biissett. )t This gall, the immature stage of which we herewith present a drawing (Fig. 4G a), has [ eUjlor—Green. for many years been a puzzle to us; and even now its history is not yet completely developed, S"^Trnt" R-', \.'\. II, r:;l-. -iciwill-oiit ol II that 1 iistances, is to m'ESS ttiut lie is sa lid meauing auother tbiug. Uut as we are i though we have examined hundreds of speci- mens of it. When mature it often attains a diameter of two and a quarter inches, and the modified leaves of which it is composed are then much longer and jiroportionally much wider than they are at first, so that instead of being what the botanists term "lanceolate" they be- come " oval," with their tips usually acute, and occasionally with a more or less well-developed acute tooth projecting from one side of the leaf. Just as, in the case of the Pine-cone Willow- gall,* although the leaves of the willow upon which it grows are always sharply toothed upon their edges, those of (he gall itself are never toothed at all, so in the case of this Leafy Oak
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectentomology, bookyear1
