Image from page 086 of "Introduction to zoology; a guide to the study of animals, for the use of secondary schools;" (1900) (14781828241)

Identifier: introductiontozo00dave

Title: Introduction to zoology; a guide to the study of animals, for the use of secondary schools;

Year: 1900 (1900s)

Authors: Davenport, Charles Benedict, 1866-1944 Davenport, Gertrude Anna Crotty, 1866-

Subjects: Zoology

Publisher: New York, Macmillan company London, Macmillian and co., ltd.

Contributing Library: MBLWHOI Library

Digitizing Sponsor: MBLWHOI Library

Text Appearing Before Image:

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Text Appearing After Image:

FIG. 66.--Tdbanus Ihieola, white-lined horse-fly. X 1.2. Photo, byW. H. C. P. FIG. 7. — Chrysops, handed horse-fly. X 1.5. Photo, by W. H. C. P. The black-flies (Simuliidse r) are representatives of thelong-horned flies (Nematocera). They are familiar pestsin the forests of our Northern country. The females, whichalone suck blood, occur in such num-bers and are so active that they rendercertain places almost uninhabitable toman. Their bite often produces wide-spreading and painful inflammation,accompanied by swelling (Fig. 68).The larvse are aquatic. The Southernblack-fly or buffalo gnat sometimescauses the death of domestic animals. The gall-gnats (Cecidomyidse 2) areminute flies which lay eggs on plants. The larva? maketheir way into the plant tissue, and cause the further de-velopment of the tissue to be abnormal, so that excrescences

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1944

Image from page 86 of "Introduction to zoology; a guide to the study of animals, for the use of secondary schools;" (1900)

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