. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 30 THE PLUM CURCULIO. DESCRIPTION. THE EGG. The egg of the plum curculio (see fig. 10) is rather broadly elliptical, dilute milky- white in color, the surface smooth and shiny; the micropyle is inconspicuous, and the ends indistinguishable. The length is variable; measurements of many specimens show a variation of from to mm., with a range in width of from to mm. The average size of 30 eggs was found to be by mm. THE LARVA. WTien full grown—length 6 to 9 mm., breadth to mm
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 30 THE PLUM CURCULIO. DESCRIPTION. THE EGG. The egg of the plum curculio (see fig. 10) is rather broadly elliptical, dilute milky- white in color, the surface smooth and shiny; the micropyle is inconspicuous, and the ends indistinguishable. The length is variable; measurements of many specimens show a variation of from to mm., with a range in width of from to mm. The average size of 30 eggs was found to be by mm. THE LARVA. WTien full grown—length 6 to 9 mm., breadth to mm.; a yellowish-white, footless grub; nearly cylindrical, slightly flattened on ventral side; body curved toward ventral side, bow-shaped; sides of each segment from second thoracic to eighth abdominal expanded into lobe above and below a depressed lateral line. (See figs. 11 and 12 and PI. I,. Fig. 10.—The plum curculio (Conotrachelus nenuphar) Egg. (Original.) a fleshy fig. 3.) Head labrum. as broad as long, about 1 mm. each way; color nut-brown; epistoma, clypeus, and mandibles darker; epicranial suture and its continuation as a median line. 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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