. The Cattle grubs or ox warbles, their biologies and suggestions for control. Warble flies; Cattle; Insect pests. The adult of H. lineatum (fig. 19) measures from 12 to 13 millimeters in length and has a wing expanse of from 23 to 25 millimeters. The female with ovipositor fully extended measures 17 millimeters in length. The gen- eral color of the adult is black, banded with yellowish and orange hair. The shade of the colors varies somewhat with different specimens and also changes according to the position and light in which the insect is viewed. The front, sides, and back of the head are c
. The Cattle grubs or ox warbles, their biologies and suggestions for control. Warble flies; Cattle; Insect pests. The adult of H. lineatum (fig. 19) measures from 12 to 13 millimeters in length and has a wing expanse of from 23 to 25 millimeters. The female with ovipositor fully extended measures 17 millimeters in length. The gen- eral color of the adult is black, banded with yellowish and orange hair. The shade of the colors varies somewhat with different specimens and also changes according to the position and light in which the insect is viewed. The front, sides, and back of the head are covered with yellowish-white hairs. The thorax is clothed with yellowish hairs except dorsal- ly, where the posterior part of the protho- BM rax and the mesothorax are Fig. 14.—Hypoderma line- more thinly atum: Posterior stigmal POVprpfi with plates of fourth-stage covered witn larva. Greatly en- black and some larged (Laake) yellow hairs. On this area there are four distinct longitudinal lines which are nearly naked and shining. The basal segments of the abdomen are covered with grayish-yellow hairs, the middle segments are brownish black, and the terminal segments are clothed in orange-yellow hairs. The femora are black and the tibiae and tarsi brown. The entire legs are well covered with black and orange-colored hairs. The wings are slightly fuscous and the veins are dark brown to black. Fig. 15.—Hypoderma bovis: Posterior stigmal plates of fourth-stage larva. Greatly enlarged (Laake). 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 Bishopp, F. C. (Fred Corry), 1884-1970. Washington, D. C. : U. S. Dept. of Agriculture
Size: 1457px × 1715px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubj, booksubjectinsectpests
