. The American entomologist. Entomology. (.oloi—Drill) spring form of the preceding arc adaiuablc from this gall in .June: but after repeated trials we have never succeeded in breeding from it a single autumnal female, and wc do not believe that any such form exists in this species. Hence, and also in consequence of the very great dis- similarity of the galls, and their always grow- ing upon distinct species of oak, we are com- pelled to consider these two gall-flies as distinct species, although when placed side by side the forms generated in the spring ari'exact h like each other. TiiK Oak-i
. The American entomologist. Entomology. (.oloi—Drill) spring form of the preceding arc adaiuablc from this gall in .June: but after repeated trials we have never succeeded in breeding from it a single autumnal female, and wc do not believe that any such form exists in this species. Hence, and also in consequence of the very great dis- similarity of the galls, and their always grow- ing upon distinct species of oak, we are com- pelled to consider these two gall-flies as distinct species, although when placed side by side the forms generated in the spring ari'exact h like each other. TiiK (iALL* (Fig. SO «) is rciuark- It-iK SO]. •First described liy the sonior Editor under nimi.^ luercm piunui in Proc. Sor. Phil. Ill p. tiSli, (. | ' able for beisig the only American gall that is known to grow out of the acorn. It occurs in- discriminately upon Black and Red Oak. reach- ing maturity in August and September. At that period it is solid but fleshy, and when cut into is of a pink color inside ^hading into yellow towards the middle. '^nl)se(|uently, as it dries, it becomes ^o Innl ,is to In- i ut witli difhcultv,. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Metcalf Collection (North Carolina State University). NCRS. New York : Max Jaegerhuber
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectentomology, bookyear1
