. Ants; their structure, development and behavior. eyes; poly-morphic. Antenme 12-jointed. Pedicel 2-jointed ( i-jointed in ).— Female resembling that of Dorylns but with vestigial eye>.Gaster not gaping at the tip. Sting vestigial.—Male with 2 closedcubital cells in the wings. Genitalia with strongly developed laminaannularis; subgenital plate furcate. Eciton (with subgen. Eciton (Fig. 145) and Acamatus ()), Cheliomyrmex (Fig. 148). Tribe 3. LEPTANILLII. Paleotropical.—Worker minute, monomorphic, eyeless. Antennfe12-jointed, inserted further apart than in the preced
. Ants; their structure, development and behavior. eyes; poly-morphic. Antenme 12-jointed. Pedicel 2-jointed ( i-jointed in ).— Female resembling that of Dorylns but with vestigial eye>.Gaster not gaping at the tip. Sting vestigial.—Male with 2 closedcubital cells in the wings. Genitalia with strongly developed laminaannularis; subgenital plate furcate. Eciton (with subgen. Eciton (Fig. 145) and Acamatus ()), Cheliomyrmex (Fig. 148). Tribe 3. LEPTANILLII. Paleotropical.—Worker minute, monomorphic, eyeless. Antennfe12-jointed, inserted further apart than in the preceding tribes. Labialpalpi i-jointed.—Female resembling that of Dorylus, eyeless. Gastergaping at the tip.—Male minute, with small eyes, ocelli and mandiblesand no veins in the wings. Leptanilla (Fig. 149). Subfamily III. MYRMICIN& Mayr. Worker with a sting. Frontal carinae and clypeus usually as in theEctatommii. Palpal joints commonly reduced in number. Pedicel dis-tinctly 2-jointed; very rarely the postpetiole is campanulate and as. FIG. 82. Worker of Myrmoteras binghaiui of Tenasserim. (Bingham.) broad as the succeeding segment. A stridulatory organ is present in atleast many of the genera.—Female usually winged, often very differentfrom the worker and much larger; very rarely ergatoid.—Male withcerci (absent in Ancrgatcs). Genitalia usually partly concealed, rarelycompletely retractile (Carcbara}. Gaster usually short. In somegenera there are wingless, ergatoid males.—Pupa? always naked, with-out cocoons. IHE HISTORY OF i. PSEUDOMYKMII. J39 Tropicopolitan.—Characterized by the closely approximated frontalcarinje in the worker and female (in Pscudomynna even recalling- theconditions in the Dorylinse). Clypeus not distinctly wedged in betweenthe frontal carinae. Sima (Fig. 67), Pseudomyrma. Tribe 2. MYRMICII. A cosmopolitan, negatively characterized group comprising all thegenera that have the clypeus produced back between the frontal carinsa
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectants, bookyear1910
