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. Ants; their structure, development and behavior. FIG. 200. Atta texana. (Orig-inal.) a. Soldier ; b, thorax of same inprofile ; c, worker media ; d. workerminima ; all drawn to same scale. 334 ANTS. ccpnnts ( Fig. iSSi, being yellowish, compact, irregularly polygonal orpyriform bodies, . mm. in diameter, and consisting of ellipticalcells much like those of the yeast plant (Saccharoinyccs). To thisfungus I have given the name Tyriiiioinyccs fonnicaniin. C. •iclicclcri( Fig. 186, /;) is a nocturnal species which nests under stones on thedry hills of western Texas. It collects small plant
. Ants; their structure, development and behavior. FIG. 200. Atta texana. (Orig-inal.) a. Soldier ; b, thorax of same inprofile ; c, worker media ; d. workerminima ; all drawn to same scale. 334 ANTS. ccpnnts ( Fig. iSSi, being yellowish, compact, irregularly polygonal orpyriform bodies, . mm. in diameter, and consisting of ellipticalcells much like those of the yeast plant (Saccharoinyccs). To thisfungus I have given the name Tyriiiioinyccs fonnicaniin. C. •iclicclcri( Fig. 186, /;) is a nocturnal species which nests under stones on thedry hills of western Texas. It collects small plant slivers and culti-vates on them a flocculent, snow-white mycelium with well-developedkohlrabi clusters and heads, or bromatia and gongylidia, as 1prefer to call these hyphal modifications in this and the other fungicultivated by the Attii. In both of our species of Cyphomyrmex the ^ . *~ -. -*.,, : FIG. 201. One of the craters of an Atta nest; about graph by C. G. Hartman.) natural size. (Photo- gardens are small (only a few cm. in diameter) and of irregular are never suspended but lie on the floors of small dilations in therough earthen galleries of the nest. 2. Mycetosoritis. — Our single species, M. hartinani (Fig. 189), isa small brown ant, which lives in the sand of the Texan post-oakwoods. Here it builds small craters, the openings of which run downvertically into the sand to a depth of 24-79 cm., suddenly dilating atlong intervals into two to four subspherical chambers, which varyfrom cm. in diameter (Figs. 190 and 191). As a rule, thesechambers, which are thus strung along the gallery like beads on athread, increase in size with the depth. While excavating theirchambers the ants leave the rootlets of plants dangling into them assuspensoria for their fungus gardens. These consist of flower anthers THE FUNGUS-GROWING ANTS. collected fro
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectants, bookyear1910