Lysander, all velvety black, with patches of green and crimson on their wings. The females of these species do not court the company of the males, but are found slowly flying in places where the shade is less dense. In the moist parts great numbers of males are seen, often four species together, threading the mazes of the forest, and occasionally rising to settle on the scarlet flowers of climbers near the tops of the trees. Occasionally a stray one is seen in the localities which the females frequent. In the swampiest parts, we saw numbers of the Epicalia ancea, one of the most richly-coloured of the whole tribe of butterflies, being black, decorated with broad stripes of pale blue and orange. It delighted to settle on the broad leaves of the Uraniæ and similar plants where a ray of sunlight shone, but it was excessively wary, darting off with lightning speed when approached.
To obtain a fair notion of the number and variety of the animal tenants of these forests, it is necessary to follow up the research month after month and explore them in different directions and at all seasons. During several months I used to visit this district two or three days every week, and never failed to obtain some species new to me, of bird, reptile, or insect. It seemed to be an epitome of all that the humid portions of the Pará forests could produce. This endless diversity, the coolness of the air, the varied and strange forms of vegetation, the entire freedom from mosquitos and other pests, and even the solemn gloom and silence, combined to make my rambles through it always pleasant as well as profitable. Such places are paradises to a naturalist, and if he be of a contemplative turn
