. The American entomologist. Entomology. 104 THE AMERICAN ENTOMOLOGIST. The Bastard Oak-apple' (Q. inanis, Osten Sacken, Fig. 79), matures like tlie preceding; in June, but is found exclusively upon the Rod Oak(qt(ercn)i riilji-a). It differs from the pre- ceding in never reaching so larjiO a size, in the central cell not being •\voody, but consisting of a mere shell which can be readily l)rokon with the thumb-nail, and in its being only connected with the external rind by slender radiating- (ila- nicnts. Males and females {Cynipsij. itmnis. (). S.) absolutely undistinguishable from the. (.olo
. The American entomologist. Entomology. 104 THE AMERICAN ENTOMOLOGIST. The Bastard Oak-apple' (Q. inanis, Osten Sacken, Fig. 79), matures like tlie preceding; in June, but is found exclusively upon the Rod Oak(qt(ercn)i riilji-a). It differs from the pre- ceding in never reaching so larjiO a size, in the central cell not being •\voody, but consisting of a mere shell which can be readily l)rokon with the thumb-nail, and in its being only connected with the external rind by slender radiating- (ila- nicnts. Males and females {Cynipsij. itmnis. (). S.) absolutely undistinguishable from the. (.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]. 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
