. Elementary entomology . Fig. 403. The fig insect {Blastophaga grosso7-inn), whose introduction has made Smyrna fig culture possible in California. (Enlarged) a, adult female ; b, head of same from below; c^ from side ; d, male fertilizing female; e, female igfeuing from gall; /, adult male, (.\fter Westwood, from Howard) Suborder H. The Stinging Hvmenoptera {Aculeata) In the second suborder the female bears a well-developed sting at the tip of the abdomen, which is effectively used as an organ of offense. The trochanters of the hind-legs have but a single seg- ment in all of the ants, wasps,


. Elementary entomology . Fig. 403. The fig insect {Blastophaga grosso7-inn), whose introduction has made Smyrna fig culture possible in California. (Enlarged) a, adult female ; b, head of same from below; c^ from side ; d, male fertilizing female; e, female igfeuing from gall; /, adult male, (.\fter Westwood, from Howard) Suborder H. The Stinging Hvmenoptera {Aculeata) In the second suborder the female bears a well-developed sting at the tip of the abdomen, which is effectively used as an organ of offense. The trochanters of the hind-legs have but a single seg- ment in all of the ants, wasps, and bees which form this suborder. 1. THE ANTS {FORMICINA) A long chapter might well be devoted to these well-known in- sects, for many interesting volumes have been written by some of our greatest naturalists concerning their remarkable intelligence and the highly developed organization of their society.^ Every one recognizes an ant, but the so-called white ants, or termites (Tenni- tidae, order Platyptcrd), and the velvet ants {JMiitillidac) may be distinguished from them by the fact that the first segment of the 1 See the most interesting monograph of Dr. W. M. Wheeler, "Ants," Colum- bia Biological Series.


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Keywords: ., bookcentury1900, bookdecade1, booksubjectentomology, bookyear1912