Image: Hardwicke's science-gossip - an illustrated medium of interchange and gossip for students and lovers of nature (1886) (14769069502)

Description: Identifier: hardwickesscienc22cook (find matches) Title: Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature Year: 1886 (1880s) Authors: Cooke, M. C. (Mordecai Cubitt), b. 1825 Taylor, J. E. (John Ellor), 1837-1895 Subjects: Science Natural history Publisher: London : Robert Hardwicke Contributing Library: MBLWHOI Library Digitizing Sponsor: MBLWHOI Library View Book Page: Book Viewer About This Book: Catalog Entry View All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: iedwith wings, etc., and work down the scale till wereach the genus Demodex or Hypopus, among theAcari, whose structure is extremely simple. Thesubject of vegetable parasites, generally of a fungoidtype, such as that occasioning ring-worm, I do notpropose touching upon, nor yet that large and inter-esting subject of Helminthology, so ably treatedof by the late Dr. Cobbold. Tutting aside, then, such insectsasmosquitoes, horse- flying, the species of the genus only being able to take-short flights, which are little more than leaps. Theirmouths are formed for suction, and from their largesize these parasites must be injurious. The grouse,owl, plover, and several other birds, are the hosts oi;this genus. Next we may mention the Stenopteryxhirundinis, an insect about the same size, and verylike the last, except that the wings are merely rudi-mentary. It is found about the nests and upon theyoung of the swallow. Passing still further down thescale we come to the Melophagus ovinus, or sheep- Text Appearing After Image: I £• 74-—Parasite of Flying Fox, 2 . X 20. flies, etc.—some of which suck the blood of their host,but do not make their dwelling there, while otherslay their eggs beneath their skins, and whose larva?are nourished there, and which consequently are, forat least a part of their lives, true parasites—we find,as perhaps one of the most highly organised, or at allevents very nearly allied to the Diptera, the genusOrnithymia (Fig. 72). This genus contains severalspecies, all of which are of large size, being but littlesmaller than the common bluebottle fly, and equippedwith a pair of well-developed wings, though they,probably from disuse, do not seem of much service for tick, called in Scotland the kade, and which is toowell known to require description, beyond the factthat it is not a tick at all, and is entirely distinct fromthe proper sheep-tick, which is a species of Ixodes.Closely allied to this is the genus Lipoptena, foundupon the stag (see Fig. 73). In both these generathe Note About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.
Title: Hardwicke's science-gossip - an illustrated medium of interchange and gossip for students and lovers of nature (1886) (14769069502)
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