. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 22 BULLETIN 964, TJ. S. DEPARTMENT OF AGRICULTURE. second and third joints of the proboscis. Probably in this pumping procedure the food is taken into the body through the proboscis. After continuing this process for several minutes at a time the pro- boscis is straightened and drawn from the tissue of the leaf and swung to its natural position on the ventral surface of the body for a short time; then it is again swung down and cleansed by a stroking process with the forelegs which clasp the proboscis between the tarsa


. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 22 BULLETIN 964, TJ. S. DEPARTMENT OF AGRICULTURE. second and third joints of the proboscis. Probably in this pumping procedure the food is taken into the body through the proboscis. After continuing this process for several minutes at a time the pro- boscis is straightened and drawn from the tissue of the leaf and swung to its natural position on the ventral surface of the body for a short time; then it is again swung down and cleansed by a stroking process with the forelegs which clasp the proboscis between the tarsal joints. After gradually sliding the proboscis through them the insect starts feeding again. This habit has been noted alike in all ages of the nymph and adults, both males and Fig. 16.—Type of cage used in conducting molting experiments witli the garden flea-liopper. PROTECTIVE HABITS. Both the males and females arc saltatorial, as the metathoracic legs are much longer 9,nd stronger than the others. The male is found to be decidedly more active than the brachypterous female, a fact probably due to the possession, in addition, of true wings. The adult individuals generally are active and strong as runners and hop- pers. When they are only slightly disturbed they hasten imme- diately for concealment to the opposite side of the leaf of the plant. If the approaching object, however, appears with a violent disturb- ance, the individual will hop many times its own length to the ground or to another plant where immediate protection may be 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 United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O.


Size: 1783px × 1402px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookauth, bookcentury1900, bookdecade1910, booksubjectagriculture