seven in the evening
From half-past six in the morning till live in the afternoon the air is filled with mosquitos . An hour before sunset a species of small gnats -- called tempraneros , because they appear also at sunrise -- take the place of the mosquitos . Their presence scarcely lasts an hour and a half . They disappear between six and seven in the evening . After a few minutes ' repose , you feel yourself stung by zancudos , another species of gnat , with very long legs . The zancudo , the proboscis of which contains a sharp-pointed sucker , causes the most acute pain , and a swelling that remains several weeks . `` The means that are employed to escape from these little plagues are very extraordinary .