Volume 22, Issue 2
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645


The blood meal source for 4,957 engorged mosquitoes collected from 1964 through 1968 was determined by a capillary precipitin technique. and comprised most of the specimens tested; other species tested included and The predominant feeding of and was upon mammals, and of upon birds. The feeding pattern varied widely, and the proportion that had fed upon birds ranged from 42% in 1966 to 83% in 1965. An analysis of forage ratios provided an index of host preference of in 1966. The data reported further substantiate the role of as the principal vector of western equine encephalitis and St. Louis encephalities in the western United States.


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