File:Bulletin of the U.S. Department of Agriculture (1917) (19878074804).jpg

Title: Bulletin of the U.S. Department of Agriculture
Identifier: bulletinofusdepa513796191719unit (find matches)
Year: 1913 (1910s)
Authors: United States. Dept. of Agriculture
Subjects: Agriculture
Publisher: (Washington, D. C. ?) : The Department : Supt. of Docs. , Govt. Print. Off.
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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62 BULLETIN 536, U. S. DEPARTMENT OF AGEICULTUEE. THE ADULT. DESCRIPTION. A general idea of the relative size and coloration of the adnlt of the Mediterranean fruit fly may be gained by an examination of text figures 1 and 14, and Plate I figure 1, and Plate VIII figure 3. The adults vary from 3.5 to 5 mm. in length. The description by Froggatt is as follows: Size 4 to 5 mm. about the size of an average house-fly, but looking somewhat smaller when dead, because the body shrinks up beneath the thorax. -General color, ocherous yellow, lighter on the sides of thorax and basal joints of the antennae. The eyes of the usual reddish purple tint, with a blackish blotch in the center of the forehead, from which spring two stout black bristles, a fine fringe of similar bristles round the
Text Appearing After Image:
Fig. 14.—The Mediterranean fruit fly (Ceratitis capitata): Adult male. Greatly enlarged. (Original.) hind margin of the head, with some coarser ones curving round in front of the head between the eyes. The thickened basal joints of the antennae pale yellow, the termi- nal segments black to the tips. The dorsal surface of the thorax convex, raised, and broadly rounded with the scutellum, the ground color creamy white to yellow, marbled with shiny black blotches forming an irregular mosaic pattern, the lighter portions clothed with very fine white bristles. These light-colored bristles more lightly scattered over the dark areas, and the whole bearing large stout black bristles thickest on the black surface. In many of the pictures of this insect the black areas are drawn as if they were projecting bosses or knobs, but this is incorrect; the whole forms a regular rounded surface. The wings are broad, semiopaque, with the extreme base blotched with ocherous or brownish yellow, with the rest of the basal area curiously marked with black, form- ing dark lines of the radiating nervures, with dark lines and spots between; beyond this is a broad irregular transverse ocherous band, slightly lined with black, blotched at the extremity; another similar shaped and colored blotch runs along inside but

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