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. Author manuscript; available in PMC: 2014 Jun 11.
Published in final edited form as: J Med Entomol. 2012 Mar;49(2):270–276. doi: 10.1603/me11073

Fig. 1.

Fig. 1

Map of catch basin study sites in Alsip, IL, a residential suburban area ≈20 km southwest of downtown Chicago. The 19 catch basins were sampled for larvae and pupae three times per week from 14 June to 29 September 2010. White circles indicate catch basins with intermediate or high larval abundance for <10% of samples. Gray circles indicate basins with intermediate or high abundance for 10–25% of samples. Black circles indicate basins with intermediate or high abundance for >25% of samples.