. Bulletin. Agriculture. 124 MAINE AGRICULTURAL EXPERIMENT STATION. I915. the abdomen, the rest of the body being light yellow or whitish. There are for more southern localities and probably for Maine at least two distinct broods each summer and winter is passed in the egg Fig. 26. The inimical leafhopper (Deltoccphalus inimicus): a, Adult; b, face; c, vertex and pronotum; d, femak genitalia; e, male genitalia; /, elytron; g, nymph. All enlarged. (After Osborn and Ball.) Eggs hatch in early spring and the young of the first generation reach their maturity the later part of June, and th
. Bulletin. Agriculture. 124 MAINE AGRICULTURAL EXPERIMENT STATION. I915. the abdomen, the rest of the body being light yellow or whitish. There are for more southern localities and probably for Maine at least two distinct broods each summer and winter is passed in the egg Fig. 26. The inimical leafhopper (Deltoccphalus inimicus): a, Adult; b, face; c, vertex and pronotum; d, femak genitalia; e, male genitalia; /, elytron; g, nymph. All enlarged. (After Osborn and Ball.) Eggs hatch in early spring and the young of the first generation reach their maturity the later part of June, and the eggs deposited by adults of this generation hatch in a short time and the young develop during mid-summer and reach maturity by August or early September. Their development is irregular enough so that consid'erable numbers of nymphs and adults may be found at any time during the summer and early autumn but ordinarily adults are only found in late fall or early winter and it appears quite certain all deposited eggs before winter and that the winter is passed then in the egg stage. How far this Hfe cycle will apply to the condition in Maine it is somewhat difficult to say but from the abundance of well developed nymphs and adults in late August and early September it seems probable that the two generations are produced about as in the latitude of Iowa and Xew York. The range of food plants in this species is considerable but it seems to favor blue grass as its first choice of food plant and the distribution of the species is apparently quite in agreement with the distribution. 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 Maine. Agricultural Experiment Station, Orono. [Orono. ]
Size: 1284px × 1947px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookleafnumber46, booksponsoruniversityo, booksubjectagriculture
