Identifier: handbookofmedic00rile (find matches)
Title: Handbook of medical entomology
Year: 1915 (1910s)
Authors: Riley, William Albert, 1876- Johannsen, Oskar Augustus, 1870-1961 Metcalf Collection (North Carolina State University). NCRS
Subjects: Insect pests Insects as carriers of disease Medical parasitology
Publisher: Ithaca, N.Y., The Comstock publishing company
Contributing Library: NCSU Libraries
Digitizing Sponsor: NCSU Libraries

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ture to therest of the integument and generally disappearing on distention;capitulum subterminal, its anterior portions often visible dorsallyin the adult; eyes present in some species,f. Integument pitted, without rounded tubercles; body providedwith many short stiff bristles; eyes absent. On horses, cattle and man (fig. 48) Otiobius Banks. O.megnini, a widely distributed species, is the type of this genus.♦Adapted from Banks, Nuttall, Warburton, Stiles, et, al. 26o Hominoxious Arthropods ii. Integument with rounded tubercles or granules; body without stiff bristles Omithodoros Koch. g. Two pairs of eyes; tarsi IV with a prominent subterminal spurabove; leg I strongly roughened. On cattle and man. O. coriaceus gg. No eyes; no such spur on the hind tarsi. h. Tarsi I without humps above 0. talaje. hh. Tarsi I with humps above. i. Tarsi IV without distinct humps above. On hogs, cattle and man O. turicata ii. Tarsi IV with humps nearly equidistant (fig. 142). Africa. O. moubata a/toom.
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149. Hasmaphysalis wellingtoni. Note short palpi, .^fter Nuttall and Warburton. fj-fa-nij dd. With scutum or shield (fig. 50); festoons usually present; coxteusually armed with spurs, tarsi generally with one or two ventralspurs; pulvilli present in the adults; sexual dimorphism pronounced IXODIDiE e. With anal grooves surrounding anus in front; inornate; without eyes;no posterior marginal festoons; venter of the male with non-salient plates. Numerous species, 14 from the United States,among them I. ricinus (fig. 49 and 50), scapularis, cookei, laexa-gonus, bicornis. Ixodes Latr. (including Ceratixodes). ee. With anal groove contouring anus behind, or groove faint or obsolete,f. With short palpi (fig. 149). g. Without eyes, inornate, with posterior marginal festoons; malewithout ventral plates. Numerous species. H. chordeilis and leporis-palustris from the United States Ilcemaphysalis Koch. Acarina 261

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