TABLE OF SKRira. 9 



The PnYLLorilACA contaiiis tlie fainily Tt'ii(limlini(l<r, which 

 comprises the insects ordiiiurily termed Saw-Hies, from the construc- 

 tion of the ovipositor, which consists of two saws which are alter- 

 nately protruded and employed in prei)aring a place for the reception 

 of the ejrgs as well as in conducting them to their destination. 



The Xyl()FHA(ja contains the family UrocerkUr, distinguished 

 from the j)rec ding by the one-spurred anterior tibia;, and by the 

 l)()rer-like ovipositcjr constructed for boring into timber in which the 

 eggs are de}M)8ited. 



The Pakasitk'A comprises the families Ci/niplda', Evnnndoe, Ich- 

 iii'iimut>i<i(e, Bnicoiildie, Chaleldidw and Proctotrupid(e, and named 

 on account of the habits of the majority of the siKJcies, the larvae of 

 wliich are parasitic upon or within the bodies of other insects. 



The TuniLiFKUA contains the family Cliri/.'<ldl<l<i\ distinguished 

 l)y having the abdomen composed of only three, four or five visible 

 segments, the renuiinder being transformed into a tubular, retractile, 

 telescopic-formed apparatus which is furnished at the extremity with 

 a minute sting or ovi{)ositor. 



The Heterocjyna comprises the Formiddie and the closely allied 

 families Poneridiv, Doryllda' and MiirmmdiP, composing the well 

 known and singularly interesting tribe of Ants. 



The Fos.st)Kiis contains the families Muflllidw, Scoliidce, Snpi/gidce, 

 I'otiipilidte, Sphecidcey Larridce, NiiS)<onid(r, Beinbeeidie, Phifanthid(e, 

 I'nnphredonidve and Cmbronldie, comj)rising the sand and wood 



wasps. 



The Diplopteryga contains the families Masaridff, Emnenidoe 

 and Vespid(e, the first two comprising the solitary wasps, composed 

 of males and females only, and the last the social wasps consisting of 

 males, females and workers. 



The Anthophila contain'^ the AndrenklcB and Apidce, comprising 

 the extensive and interesting family of Bees. 



IRANS. AHER. KNT. SOC. (2) 8UPPL. VOL. 1887. 



