. Annual report. New York State Museum; Science; Science. REPORT OF THE STATE ENTOMOLOGIST IQI4 245 Rhopalomyia capitata Felt 1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 363, 364 1909 Ottawa Nat., 22: 247 This rather large species appears to be quite abundant in some localities. It seems to have a pronounced gregarious habit judging from the large number of galls on limited patches of Soli dago s e r o t i n a and S. canadensis. The galls attain full devel- opment from the middle till the latter part of September, the insects appearing in considerable numbers shortly thereafter, as many as
. Annual report. New York State Museum; Science; Science. REPORT OF THE STATE ENTOMOLOGIST IQI4 245 Rhopalomyia capitata Felt 1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 363, 364 1909 Ottawa Nat., 22: 247 This rather large species appears to be quite abundant in some localities. It seems to have a pronounced gregarious habit judging from the large number of galls on limited patches of Soli dago s e r o t i n a and S. canadensis. The galls attain full devel- opment from the middle till the latter part of September, the insects appearing in considerable numbers shortly thereafter, as many as 62 being reared in one day from a lot of galls. A Tachinid, Dichaetaneura leucoptera Johns., determined by its describer, was reared September 7, 1906 from this gall and presum- ably from this species. Gall. The terminal rosette galls produced by this species are about cm in diameter and composed of numerous small cells, each surrounded by a few leaflets about one-fourth the normal size and the entire mass is provided with a calyxlike whorl of longer leaflets. The length of the leaflets around the individual cells and the mass appears to be very naturally correlated with the degree of infestation, since the more populous heads have shorter leaflets. The individual galls occur at the base of the deformity among the leaflets, are somewhat conical in shape, about 4 mm high, 2 mm in diameter and not very unlike the gall ofR. racemicola. See plate 10, figure 2; plate 13, figures 1,2, and also New York Museum Bulletin 175, plate 1, figure 1, for a colored illustration. Male. Length mm. Antennae as long as the body, sparsely. Fig- 59 Rhopalomyia capitata; fifth antennal segment of male, enlarged (original). 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 New York State Museum. Albany : University of the Sta
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