. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. THARSALEA HERMES Edw. For several years past the writers have endeavored to se- cure larvae of this butterfly in the vicinity of San Diego, but without success. In June of 1932 Mr. Fred Thorne induced a female to lay in captivity, but the resultant eggs did not hatch. In nature the eggs are laid on the stems of Rhamnus crocea Nutt. (Red Berry) and remain over the summer, fall and win- ter, giving forth larvae in the early spring. On April 28, 1935 a single larva was beaten from Rhamnus, and ra
. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. THARSALEA HERMES Edw. For several years past the writers have endeavored to se- cure larvae of this butterfly in the vicinity of San Diego, but without success. In June of 1932 Mr. Fred Thorne induced a female to lay in captivity, but the resultant eggs did not hatch. In nature the eggs are laid on the stems of Rhamnus crocea Nutt. (Red Berry) and remain over the summer, fall and win- ter, giving forth larvae in the early spring. On April 28, 1935 a single larva was beaten from Rhamnus, and raised to maturity, thus furnishing the material for this partial record of the metamorphosis. Egg. Echinoid; covered with deep pits surrounded by high and somewhat irregular walls, rising to crests at their junctures. Micropyle deeply depressed. Color white. See Plate PLATE 19 Egg of Tharsalea hermes, greatly magnified. Photo by Menke, retouched by Comstoek Mature larva. Length, extended, 13 mm. Slug shaped, robust, with the usual small retractile head. The ground color of the body is apple green. A mid-dorsal band of slightly darker green runs from the fourth to the eleventh segments. This is margined with yellow- ish green, and is shown on Plate 20, fig. D. Laterally there are two rather indistinct longitudinal inter- rupted yellow bands on each side, and the infrastigmatal fold is edged with yellowish green. Abdomen, pale green. Spiracles, dark brown. Legs, pale green, almost colorless, with pale brown points. Prolegs, pale green with brown hairs on the claspers. The body is sparingly covered with silvery white dots which, under high magnification, are noted as pillar-shaped stout pro- jections with rounded ends. One of these is illustrated on Plate 20, fig. C. There is also a complete body vestiture of minute short brown hairs which are not erect, and are only discern- ible with a strong lens. Those on the front of the first seg- ment and on the caudal end are much long
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