. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 48 The general appearance of the female is shown in figure 16 at a, much enlarged, the .segments of the antennas being shown still more enlarged at h. The genitalia or sexual organs of the male are illustrated, also greatly enlarged, at c. DISTRIBUTION. It seems probable that this species, like others found in greenhouses, and in habitations, storehouses, and indoors generally, has been intro- duced from abroad; and it is perhaps tropical, at least in origin. The present known distribution includes the following
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 48 The general appearance of the female is shown in figure 16 at a, much enlarged, the .segments of the antennas being shown still more enlarged at h. The genitalia or sexual organs of the male are illustrated, also greatly enlarged, at c. DISTRIBUTION. It seems probable that this species, like others found in greenhouses, and in habitations, storehouses, and indoors generally, has been intro- duced from abroad; and it is perhaps tropical, at least in origin. The present known distribution includes the following localities: Wash- ington, D. C.; Richmond and Gordonsville, Va.; Njack, Tappan, and Cornwall-on-the-Hudson, N. Fig. 1(5.—Diplusis violkuhi: o, I'nuale fly; l>, female anleiinal ; c, male guuitalia; (/, larva; e, breastbone of larva—a, h, much enlarged; c, d, c, more enlarged (from Coquillett). This species first attracted attention in 1806, when it was noticed by Mr. Dorsett on sweet violets in the vicinity of Washington, D. C. One of our correspondents, Mr. W. V. V. Powers, writing under date of January 27, ISOU, stated that he had noticed this insect three years earlier, and although he could not feel certain that there was any con- nection between the appearance of this pest and the introduction of the so-styled California violet, it was noticed that they ])oth appeared the same year in his vicinity, Cornwall-on-the-Hudson, N. Y. NATURE OF INJURY. The maggots, as previously stated, conceal themselves in folds of the young, growing leaves, causing a distortion or curling into irregu-. 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 United States. Bureau of Entomology. Washington : G. P. O.
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