. Insects affecting domestic animals [microform] : an account of the species of importance in North America, with mention of related forms occurring on other animals. Parasites; Insects, Injurious and beneficial; Animaux domestiques; Insectes nuisibles. 192 INSECTS DOMESTIC ANIMALS. and often with a coinplicatud structure, while the tei miiuil Heguicnt of the female is biU)bed. The species of Ornithohim are white or trans- parent and especially characterized by having sliarp curved append ages meeting in front of the clypeus. TrichothctcN is at once kn«>\vii by the three-jointed
. Insects affecting domestic animals [microform] : an account of the species of importance in North America, with mention of related forms occurring on other animals. Parasites; Insects, Injurious and beneficial; Animaux domestiques; Insectes nuisibles. 192 INSECTS DOMESTIC ANIMALS. and often with a coinplicatud structure, while the tei miiuil Heguicnt of the female is biU)bed. The species of Ornithohim are white or trans- parent and especially characterized by having sliarp curved append ages meeting in front of the clypeus. TrichothctcN is at once kn«>\vii by the three-jointed antenna'. Otiier genera of the family do not «'on tain species infesting domestic animals, and hence need not be noticed here. LOUSK OK DUOKS AND GEEHE. (DocophoruH iclerodea Nitzsch.) This 8])ecies has been recorded from so many different members of the order of birds containing the ducks and geese that it n>ay be con- siilered as common to the order. It was described by Fitzsch in 1818, and has been mentioned by most writers on parasites since that time. It is about 1 mm. in length, and has the head and thcnax of a bright reddish color with darker bands. The abdomen is white in the center, with broad, dark reddish, horny bands at the sides, with a darker spot at the margin. It occurs conunonly on our native ducks. Little Red Swan Louse. {Doeophonia cyi/ni Denny.) Notwithstanding the apiiarent abundance of this species, it does not a])pear to have been described before 1842, when it was described and rtgured by Denny (Mouog. Anop. Hrit., p. 95, jd. 1, tig. 1), but accord- ing to tills author it was figured by Re«li (Exper., PI. IX, tig. inf.), which would carry its recognition back two hundred years. It is common on both the wild and domesticated swans, and Denny states that he has received it from the bean goose. II IS 1 mm. in length, of a robust form, the head decidedly rounded in front, except at the extreme tip, where it is slightly excavated. In color the head, tho
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherwashi, bookyear1896
