. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. The eggs are deposited on the vines, tendrils and leaf stems, but not on the leaves of the foodplant. They are laid in clusters of from ten to fourteen, and hatch in from four to six days. The average time of hatching at a uniform temperature of 80 is five days. Egg. About 1 :25 mm. tall by mm. in circumference. Spherical, the base slightly flattened. The surface of the tgg is smooth, and of a light yellow color, but this is nearly obscured by a partial covering of a bright yellow or orang


. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. The eggs are deposited on the vines, tendrils and leaf stems, but not on the leaves of the foodplant. They are laid in clusters of from ten to fourteen, and hatch in from four to six days. The average time of hatching at a uniform temperature of 80 is five days. Egg. About 1 :25 mm. tall by mm. in circumference. Spherical, the base slightly flattened. The surface of the tgg is smooth, and of a light yellow color, but this is nearly obscured by a partial covering of a bright yellow or orange substance which has the appearance of being an exudate. This has a fatty or resinous appearance, and seems to be laid on the surface in irregular longitudinal lines or bands. These bands have numer- ous globules or droplets adhering to their surfaces, which bear a resemblance to oily pearls. These features are brought out in our illustration on Plate PLATE 3 Egg of Papilio polydamas lucayus magnified x 22. Drawing by J. A. Comstock The young larvae are gregarious in their earlier phases, but separate as they mature. Larva, first instar. Head larger than body; glistening jet black, covered sparsely with short black vibrissae. Mouth parts black, except the basal joint of the antennae, and the labrum, which are gray-white. The body ground color is a soiled gray-yellow. On the first cervical segment there is a prominent black scutellum, from which arises a number of single black hairs. Anterior to this is the orifice of the eversible glands. This orifice is white. The body is covered with the usual number of rows of black fleshy papillae characteristic of the polydamas—philenor group. Each papillus bears a single black bristle. Legs black, as are also the prolegs and anal prolegs. There is a black plate on the anal extremity, on which are superimposed a number of black papillae bearing hairs. The first instar is illustrated on Plate Please note that these images are ext


Size: 1544px × 1618px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1900, books, booksubjectnaturalhistory