. Annual report of the Agricultural Experiment Station. Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). On Certain Grass-Eating 63 Trap L,antern Record. C. interminellus, 1889. June. bi July- ^ ?3 0 69 19 I I 3 4 3 5 8 6 I 8 I 10 5 II II I 12 I I3'i4 15 I 5 16 2 17 I 3 18 I 19 I 20 4 21 4 25 I 27 I 2 2 5 I I 6 5 7 3 8 3 9 I 10 1 2 15 I .7 I 21 30 I I 1 Males . Females. I 4 I The period of flight extends through June and July ; individu- als have been taken as late as September 30. This long period of flight indicates great irregularity in time of
. Annual report of the Agricultural Experiment Station. Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). On Certain Grass-Eating 63 Trap L,antern Record. C. interminellus, 1889. June. bi July- ^ ?3 0 69 19 I I 3 4 3 5 8 6 I 8 I 10 5 II II I 12 I I3'i4 15 I 5 16 2 17 I 3 18 I 19 I 20 4 21 4 25 I 27 I 2 2 5 I I 6 5 7 3 8 3 9 I 10 1 2 15 I .7 I 21 30 I I 1 Males . Females. I 4 I The period of flight extends through June and July ; individu- als have been taken as late as September 30. This long period of flight indicates great irregularity in time of breeding, but this does not necessarily imply more than one generation a year. This species is quite prolific ; one female laid one hundred and fifty eggs after capture and confinement in a vial. From obser- vation of other species the average is probably between three and four hundred and one might expect to find individuals laying over five hundred eggs. When first laid the eggs are of a pale yellow- ish color ; they gradually turn to an orange buff" color and hatch in about eight days. The larvae begin to feed soon after hatching. Their favorite position is in the axil of a leaf, where they eat the soft parenchyma. Even when but a few daj^s old the larvae eat most voraciously. When the larvae are about a week old they begin to spin webs in the axils of the leaves ; frequently several leaves are fastened together, in the midst of which the larvae feed. When grass is not to be had the larvae will feed upon sheep sor- rel {Rumex acetoselld). About a month after hatch- ing, the last of September, the larvae begin to con- struct cylindrical perpendicular nests near the sur- face of the soil (Fig. 5). These nests are usually attached to one or more stalks of grass. The out- side of the nest is covered with finely chewed bits of grass, while the inside is smoothly lined with silk. The nests are about a quarter of an inch long and about one-sixteenth of an inch in diameter. A
Size: 1086px × 2300px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., book, bookcentury1800, bookcollectionbiodiversity, bookdecade1880
