. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. Larva of ^S mm. in one of the intermediate instars may be described as follows. Body, creamy buff, sparingly covered with short colorless hairs. A broad black scutelkmi crosses the top of the first seg- ment. On the 5th segment, mid-dorsally in the center of the seg- ment, there is a black spot. A similar spot occurs on the 6th seg- ment at its juncture with the 7th. On the 10th segment at its juncture with the 11th there is a narrow black bar across the back. These latter three black markings


. Bulletin of the Southern California Academy of Sciences. Science; Natural history; Natural history. Larva of ^S mm. in one of the intermediate instars may be described as follows. Body, creamy buff, sparingly covered with short colorless hairs. A broad black scutelkmi crosses the top of the first seg- ment. On the 5th segment, mid-dorsally in the center of the seg- ment, there is a black spot. A similar spot occurs on the 6th seg- ment at its juncture with the 7th. On the 10th segment at its juncture with the 11th there is a narrow black bar across the back. These latter three black markings were not observed on all ex- amples. The rear half of the caudal segment is dark chestnut. Spira- cles, pale brown, encircled by darker brown. Abdomen concolor- ous with body, as are also the legs and prolegs. The hooks on the latter are dark brown. Head, dark chestnut, sparingly covered with short colorless hairs. Ocelli, colorless, on dark bases. Spinneret, white. Mouth parts, solied white. Mature larva, length 45 to 57 mm. The ground color is lighter, and is described by Riley as "edematous ; In other respects there is little change from the intermediate instar above described. Many of the points noted by Riley do not need repetition here. His figure of the mature larva is somewhat more elongated than noted by us. Plate 34 shows an actual photograph of the larva in its last PLATE 34 Mature larva of Megafhymus yuccae navajo enlarged about x 2. Photo by Menke 91. 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 Southern California Academy of Sciences. Los Angeles, Calif. : The Academy


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