. Ants; their structure, development and behavior. The Degenerate Slave-makers.—This group embraces onlytwo genera, Strongylognathns and Harpagoxenus, formerly known asTomognathus. Strongylognathns is a strictly palearctic genus, con-fined, so far as known, to Europe, western Siberia, Asia Minor andthe southern shores of the Mediterranean. It contains only two spe-cies, testaceus and huberi, but the latter has several subspecies andvarieties (christophi, rehbinderi, afcr and c a cilice). These ants arevery small, measuring only mm. in length, and of a yellowishor dark brown color. The
. Ants; their structure, development and behavior. The Degenerate Slave-makers.—This group embraces onlytwo genera, Strongylognathns and Harpagoxenus, formerly known asTomognathus. Strongylognathns is a strictly palearctic genus, con-fined, so far as known, to Europe, western Siberia, Asia Minor andthe southern shores of the Mediterranean. It contains only two spe-cies, testaceus and huberi, but the latter has several subspecies andvarieties (christophi, rehbinderi, afcr and c a cilice). These ants arevery small, measuring only mm. in length, and of a yellowishor dark brown color. The head of the worker and female is more orless excised behind, with very prominent posterior corners and sub-parallel sides. The mandibles are toothless, narrow, pointed andsickle-shaped, like those of Polyergus, but without denticles. All ofthe forms occur only in nests of Tetramorium cespitum (Fig. 273, of),a very common ant which they closely resemble in size and appear-ance. i. Strongylognathns huberi (Fig. 273, c).—This species was origi-.
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectants, bookyear1910
