. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. narrow longitudinal white lines, alternating with rows of raised nodules which are topped by short white bristles. Some of the latter have a small black tip at the point of junction of the bristle with the nodule. The median white line is the most clearly defined. The row of nodules occuring along the infrastigmatal fold bears a greater number of bristles than any of the others. This larva is illus- trated on Plate 55, fig. A. Pupation occurs on the leaf of foodplant, the pupa being actually l
. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. narrow longitudinal white lines, alternating with rows of raised nodules which are topped by short white bristles. Some of the latter have a small black tip at the point of junction of the bristle with the nodule. The median white line is the most clearly defined. The row of nodules occuring along the infrastigmatal fold bears a greater number of bristles than any of the others. This larva is illus- trated on Plate 55, fig. A. Pupation occurs on the leaf of foodplant, the pupa being actually longer than the mature larva. Pupa : Length, averaging about 14 mm. Color, at first a clear green, changing later to wood brown with darker markings. The anterior end is rather acutely pointed; pos- terior end gradually tapering. Fine longi- tudinal pencilings, suggestive of the light lines of the larva are usually present, or at least faintly indicated. Plate 55, fig. B il- lustrates the pupa. On the same species of plant there were found quantities of the larvae of Choreutis gemmalis Hist. This larva eats away the green parenchyma and one layer of the epi- dermis of the leaf, leaving only a thin trans- parent membrane. It particularly seems partial to the central portions of the leaf. A fine network of webbing is spun, which includes a tunnel - like structure, running parallel with the midrib. In this tunnel the larva pupates. When it is about ready for emergence the pupa pushes forward to the end of the tunnel and its fore-portion is extruded, so that the moth will be free to exit without having to traverse any of the tunnel. It is easy to note a plant of Peresia which is infested with the above larvae, as it has a seared and curled appearance. The imago has a rather weak flight. When it is at rest, the wings are held in a peculiar arched or semi-folded manner which gives the appearance of the moth having freshly emerged, and the wings having only partially expanded. For dete
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