. A year of Costa Rican natural history. Leaf-cutting Ants. 1. Workers of Atta octospinosa from near Tres Rios (x2). 2. Workers of Atta cephalotes from Juan Vinas (). 3. Male of A. cephalotes from Cartago (). To face p. 1S4. I, 2. Army Ants, Eciton prcrdator, Agua Buena Creek. The Larva of Dragonfly, Cora, Juan Vihas. x^Ys. To face p. 18s JUAN VINAS—ABOVE THE LAGUNA 185 Ascalaphid related to the ant-lions but differing from themin having antennse as long as or longer than the body, andknobbed at the tip. This individual presented a moststretched-out appearance, for it had arrange
. A year of Costa Rican natural history. Leaf-cutting Ants. 1. Workers of Atta octospinosa from near Tres Rios (x2). 2. Workers of Atta cephalotes from Juan Vinas (). 3. Male of A. cephalotes from Cartago (). To face p. 1S4. I, 2. Army Ants, Eciton prcrdator, Agua Buena Creek. The Larva of Dragonfly, Cora, Juan Vihas. x^Ys. To face p. 18s JUAN VINAS—ABOVE THE LAGUNA 185 Ascalaphid related to the ant-lions but differing from themin having antennse as long as or longer than the body, andknobbed at the tip. This individual presented a moststretched-out appearance, for it had arranged itself withantennse, body, wings, and hind legs held parallel to thevine to which it clung, the wings being folded over the bodyin roof-wise fashion. The current of the Naranjo was swift but there werequieter pools in it here and there, owing to the numerousstones in its bed forming partial dams. At one of thesepools, about 3 P. M. on August, 2 P. saw a male dragonfly{Brechmorhoga pertinax eurysema) poising with rapidlyfluttering wings over a certain limited area. By graduallylowering the net to within a few inches of the insect andthen bringing it down into the water as fast as I could, Icaptured the specimen. No other
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1917
