Handbook of medical entomology . 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, bic
Handbook of medical entomology . 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. 150. Stigmal plate of Dermacentor andersoni; (a) of male, (6) of female. After Stiles,(c) permacentor variabilis, male- (d) Glyciphagus obesus; («) Otodectescynotis; (/) Tyroglyphus lintneri; (g) Tarsonemus pallidus; (h) anal plateand mandble of Liponyssus; (e) to {h) after Bank?. 262 Hominoxious Arthropods gg. With eyes. h. Anal groove distinct; posterior marginal festoons Base of the capitulum (fig. 150c) rectangular dorsally; usually ornate Dermacentor Koch. j. Adults with four longitudinal rows of large denticles oneach half of hypostome; stigmal plate nearly circular,without dorso-lateral prolongation, goblets very large,attaining 43/* to 115M in diameter; not over 40 perplate, each plate surrounded by an elevated row ofregularly arranged supporting cells; white rust want-ing; base of capitulum distinctly broader than long,its postero-lateral angles prolonged slightly, if at all;coxae I with short spurs; trochanter I with smalldorso-terminal blade. Texas, Arizona, etc
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsectp, bookyear1915
