Handbook of medical entomology . 456. Left spiracle of n>Tnph of Argas persicus. After Nuttall and Warburton. Ixodoidea, or Ticks 63 ?spiracles are very small; coxae unarmed; tarsi without ventral spurs,and the pulvilli are absent or rudimentary. In habits and life history the Argasidas present striking characteris-tics. In the first place, they are long-lived, a factor which counts formuch in the maintenance of the species. They are intermittentfeeders, being comparable with the bed-bug in this respect. There aretwo or more nymphal stages, and they may molt after attaining matu-rity. The f
Handbook of medical entomology . 456. Left spiracle of n>Tnph of Argas persicus. After Nuttall and Warburton. Ixodoidea, or Ticks 63 ?spiracles are very small; coxae unarmed; tarsi without ventral spurs,and the pulvilli are absent or rudimentary. In habits and life history the Argasidas present striking characteris-tics. In the first place, they are long-lived, a factor which counts formuch in the maintenance of the species. They are intermittentfeeders, being comparable with the bed-bug in this respect. There aretwo or more nymphal stages, and they may molt after attaining matu-rity. The female lays comparatively few eggs in several small batches. Nuttall (1911) concludes that The Argasidae represent the rela-tiveh primitive type of ticks because they are less constantly para-. 46. Argus persicus. Dorsal and ventral aspects. (X4). After Hassell. sitic than are the Ixodidae. Their nymphs and adults are rapidfeeders and chiefly infest the habitat of their hosts. * * * Owingto the Argasidce infesting the habitats of their hosts, their resistanceto prolonged starvation and their rapid feeding habits, they do notneed to bring forth a large progeny, because there is less loss of lifein the various stages, as compared with the Ixodidae, prior to theirattaining maturity. Of the Argasidae, we have in the United States, several specieswhich have been reported as attacking man. Argas persicus, the famous Miana bug (fig. 46), is a very widelydistributed species, being reported from Europe, Asia, Africa, andAustralia. It is everywhere preeminently a parasite of fowls. 64 Parasitic Arthropods According to Nuttall it is specifically identical with Argas americanusPackard or Argas miniatus Koch, which is commonly found on fowls- in the United States, in the Southand Southwe
Size: 1821px × 1371px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsectp, bookyear1915
