. L'entomologiste américain. L'entomologie. De couleur noir. Il fait son apparition dans l'état ailé en septembre, et au début de la somme folloTring- mer le g-reen et sliining vésicule creuse, avec sa peau aussi fin que celui d'un capsicum, peuvent être découvertes presque plein-gi propre sur des peupliers, et parfois sur des peupliers baumiers. À cette période il y a alwaj a trouvé un seul pou-riant sans ailes à l'intérieur, qui a par sa seule ex- ertions provoqué la croissance de l'audace, et qui seront par la suite donner naissance à l'intérieur d'une très grande et prospère famille de jeune plante- poux, dont l'ev

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. The American entomologist. Entomology. Color—Black. It makes its appearance in the winged state in September, and early in the folloTring sum- mer the g-reen and sliining hollow gall, with its skin as thin as that of a capsicum, may be dis- covered almost full gi-own upon cottonwoods, and occasionally upon balsam poplars. At this period there is alwaj's found a single wingless riant-louse inside it, which has by her sole ex- ertions caused the growth of the gall, and which will subsequently give birth inside it to a very large and flourishing family of young Plant- lice, all of which will eventually acquire wings and leave the gall in the ensning September. The Sumac-gall (Ehois, Fitch), Fig. 89.— This tomato-like gall occurs on the leaves both of the Smooth Sumac (BMts glabra) and the Stag- horn Sumac (Bhus typhina), and in the States both of Illinois and New York. Like the preced- ing, its shell or skin is quite thin, and the winged flies are found inside it in prodigious [Fig. 89.]. Color—Greenish yellow, with a ro.9y cheek. numbers in September. Early in the spring, as we have been informed by Dr. Wm. Manlius Smith", of Manlius, N. Y., each gall contains but a single wingless mother-louse in company with numerous larvffi. The winged fly has the veins of its wings ari'anged in the same pattern as those of the preceding species (Fig. 88), but diflers in having four-jointed instead of six- jointed antennro. It is also a very much smaller insect. It is remarkable that there are two Chinese, one Japanese, and one Indian gall, growing upon different species of exotic Sumacs, and ap- parently analogous in their structure to our American Sumac-gall. They are described as being, some of them like a radish-pod, some like an ox-horn and over two inches long, and some branched like a stag's horn. One of these Chinese Sumac-galls, which is not uncommonly to be met with in drug stores, is shaped much like ours, but has a much tougher and thicker rind. On breaking

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