Bulletin of the Maryland Agricultural Experiment Station . Fig. iS.^Epicauta vittata: a, full grownstage of second larva: b, portion of the dorsalskin of same: c, pseudo-puim. or coarctatelarva, lateral view; d, same, dorsal view. with the legs and mouth-parts reduced to mere is known as the coarctate lar_ BULLETIN NUMBER 23, DECEMBER, 1893. 93 yal stage (Fig. 23, c. d.) The fifth moult causes this hardeued shellto split open and from it there issues the ultimate larva, which resemblesthe scaraboid stage in appearance, except that the larva is more activeand moves about-without
Bulletin of the Maryland Agricultural Experiment Station . Fig. iS.^Epicauta vittata: a, full grownstage of second larva: b, portion of the dorsalskin of same: c, pseudo-puim. or coarctatelarva, lateral view; d, same, dorsal view. with the legs and mouth-parts reduced to mere is known as the coarctate lar_ BULLETIN NUMBER 23, DECEMBER, 1893. 93 yal stage (Fig. 23, c. d.) The fifth moult causes this hardeued shellto split open and from it there issues the ultimate larva, which resemblesthe scaraboid stage in appearance, except that the larva is more activeand moves about-without feeding, however. It burrows a short distanceinto the soil, where it forms a cavity within which, in the course of a fewdays, it transforms with the sixth moult to the true pupa, (Fig. 24.)It is in the coarctate larva stage that the insect generally passes the win-ter, the true pupa state being assumed only in earlysummer just before the perfect beetles issue from theground. These curious larval changes are designated ashypermetamorphoses by entomologist
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectagriculture, bookyear
