. The American entomologist and botanist. ter received fromMrs. Mary Treat, of New Jersey, two diiiteronspupte which probably belong to this species,and which had also in the larva state infesteda Cecropia worm. The Cecropia Chalcis Fly—(Chalets maria,N. Sp.*)—In May, 1869, we received from Mr. Chalcis maria, N. Sp. —? yellow, beautifully markedwith black. Head, yellow witli au arcuate black markbehind base of the antenuK, corinected with a line short lon-gitudinal black line leading to lower ncLlhis, aud fromthence to postei-ior margin of ociipul which is marginedwith black; nrothorax with a
. The American entomologist and botanist. ter received fromMrs. Mary Treat, of New Jersey, two diiiteronspupte which probably belong to this species,and which had also in the larva state infesteda Cecropia worm. The Cecropia Chalcis Fly—(Chalets maria,N. Sp.*)—In May, 1869, we received from Mr. Chalcis maria, N. Sp. —? yellow, beautifully markedwith black. Head, yellow witli au arcuate black markbehind base of the antenuK, corinected with a line short lon-gitudinal black line leading to lower ncLlhis, aud fromthence to postei-ior margin of ociipul which is marginedwith black; nrothorax with a medium black dot. Antenna(scape < H joints) 10-jpint«d; scape fulvous with superim-edge black, flagellmn dark brown or black. TImrax withlarge shallow close-set punctures: somewhatstriated trunsvcrbtly, triliuear with black, the three lines 102 THE AMERICAN ENTOMOLOGIST. V. T. Chambers, of Coviiigtou, Ky., numerousspecimens of the hitherto uudescribecl beautifullarge Chalcis fly flgured herewith (Fig 66), [Fig. 06.]. Colors—Black and yellow. which he had taken from the cocoon of thePolyphemus moth, -which is quite common, andissues as early as the middle of Februaiy inthat locality. He says, I was satisfied thatthe cocoon did not contain a living Polyphemusand therefore opened it. It contained so littlebesides these insects and their exuviae, as tosuggest strongly the old idea that the caterpillarhad been metamorphosed into them (as in asense it had). There were 47 of them, of which23 were females. As all the males, and someof the females were dead when I opened thecocoon, I think it likely that the former neverdo emerge, and perhaps but few of the latter;otherwise Polyphemus would soon be exter-minated. We can very well imagine that most of theseChalcis flies would die in their efibrts to escapefrom the tough cocoon of the Polyphemus, butit so happens that these same parasites havebeen found by Mrs. Mary Treat, of Vineland, connected by a transverse lin
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