Annual report on the New York State Museum of Natural History (1888) (19371878171)

Title: Annual report on the New York State Museum of Natural History

Identifier: annualreportonne4218newy (find matches)

Year: 1870 (1870s)

Authors: New York State Museum of Natural History

Subjects: New York State Museum of Natural History; Natural history museums; Natural history

Publisher: Albany, N. Y. : The Trustees

Contributing Library: American Museum of Natural History Library

Digitizing Sponsor: BHL-SIL-FEDLINK

Text Appearing Before Image:

(23) Report of the State Entomologist. 165 Europcea, it seems to have found our native species, Larix Americana, commonly known as the tamarack or hackmatack, particularly adapted to its tastes, as shown in the havoc which it inflicts in the tamarack swamps of New York and New England. The insect is illustrated in Fig. -A. For details of life-history, and its description, reference may be made to the writings of Dr. Packard in the reports of the Commissioner of Agriculture, above cited. For

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Fig. 4.— The larch saw-fly, Nematus Erichsonii, in natural size and enlarged, and the larch worm of different ages, in natural size. (From Packard.) the present it will suffice to say that the parent saw-fly emerging from her cocoon in the month of May, probably not long thereafter resorts to the larches and inserts its oval, cylindrical eggs, according to Dr. Packard, in two rows of incisions in the terminal shoot or one of the side shoots, causing a twisting and deformity therein from the presence and growth of the eggs. The larvse, hatching in June, mature rapidly, " in from five to seven days, or not more than ten," when they descend from the trees and inclose themselves within their elongate oval cocoons beneath moss or other convenient shelter. This occurs the last of June or in early July, in New York. They remain unchanged within the cocoon during the winter and assume the pupal form the following spring, as is the habit of many of the Tenthredinidce.

annual report of the regents 1888 pristiphora erichsonii symphyta illustrations book illustrations insects new york state new england high resolution images from internet archive

1888

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