. FiG. 1. Reservoir near Cañitas, Ledesma, Province of Jujuy. Found breeding A. rondoni in August, 1927, later found to produce a predominance of A. pseudo- punctipennis. of a reedy swamp behind the reservoir was a breeding-place highl}^ favored by rondoni. (See Fig. 2.) This ditch was connected with the adjacent swampy lake but presented a different flora; its margins were grassy, the water was fairly clear, there was a certain amount of detritus present, but no visible algae. On the other hand, the swamp contained cat-tails, supported a profuse growth of green algae and bred A. pseudopunctip
. FiG. 1. Reservoir near Cañitas, Ledesma, Province of Jujuy. Found breeding A. rondoni in August, 1927, later found to produce a predominance of A. pseudo- punctipennis. of a reedy swamp behind the reservoir was a breeding-place highl}^ favored by rondoni. (See Fig. 2.) This ditch was connected with the adjacent swampy lake but presented a different flora; its margins were grassy, the water was fairly clear, there was a certain amount of detritus present, but no visible algae. On the other hand, the swamp contained cat-tails, supported a profuse growth of green algae and bred A. pseudopunctipennis. From a collection taken in the ditch on March 2, 1927, 100 con- secutive larvae were examined. Of these, 98 were of the tarsimacu-
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherslsn, booksubjectdi
