. Circular. Agriculture; Agriculture; Entomology. Insect Enemies of Greenhouse and Ornamental Plants 17 LARVA. Short, thickened, wrinkled and curled in burrow when at rest; head chestnut brown, lightest in center where it is bisected by two darker lines, arcuate on hind margin; jaws black, antennas and palpi reddish brown. PUPA. Pale yellow with black eyes; tip of snout and spines, on abdomen reddish brown, wing-pads dark colored at tips; dorsal surface of head smooth, bearing a few scattered hairs; thorax broad showing a depression on either side and a central suture; abdomen tapering to extr
. Circular. Agriculture; Agriculture; Entomology. Insect Enemies of Greenhouse and Ornamental Plants 17 LARVA. Short, thickened, wrinkled and curled in burrow when at rest; head chestnut brown, lightest in center where it is bisected by two darker lines, arcuate on hind margin; jaws black, antennas and palpi reddish brown. PUPA. Pale yellow with black eyes; tip of snout and spines, on abdomen reddish brown, wing-pads dark colored at tips; dorsal surface of head smooth, bearing a few scattered hairs; thorax broad showing a depression on either side and a central suture; abdomen tapering to extremity, each segment furnished with a spine on either side with anal one bearing two and a number of spiny hairs on apex; surface shows several fine hairs upon head with two longer ones above eyes; snout and legs curled downward, wings folded down forming a pad on either side. This insect was evidently introduced into New Jersey green- houses in orchids imported from some tropical country of the Eas- tern hemisphere. During the middle of the day the beetles seem. Fig. 31. Cholus cattleyae Champ. to prefer to rest in the curled, basal portion of the leaf, where a considerable part of their feeding takes place. In New Jersey, Dendrobium findlayanum and D. crystallinum seem to be attacked more than other species. Cholus Gattleym Champ. (Fig. 31) This attractive species, which belongs to the Curculionidce, is about 11 mm. long, 5 mm. wide, black and characteristically marked with white, and has been found as a rule associated only with Cattleya gigas, but other species are sometimes injured. It feeds on the surface of the pseudo-bulb and punctures the leaves with large holes, the tissue surrounding these punctures finally turning black and becoming hard and dead. The larval and pupal. 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
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Keywords: ., bookcentury1900, booksubjectagriculture, booksubjectentomology
