190 ORDER HYMKNopTKRA. 



The Qmt srction has two !itil>M<rtli>n!i, l)><? Mv<«nil cotitainini; twu «livi^i•'t]|| : 



HulMcrtinn I. I'lirriPllAtiA : AMomcn M-wtle : larric fi-oling u(>un vrgruMr matirr. Tliu c«rnUtBa 



ikr faniilii<)i TtHtkrtdimdit mkI Vrottrida. 

 8ulMc«<li»n II. KnTomiiI'IIAOA : AUionu'ii •tUrhrU >>y • portion of iu IranorrrM- tJtaiMrIrr : Urra 

 wilb •li^klly doTDlo|iml tr»phi, Mid fur the moat p«rt fn^l iiarm*iliralty u|Min otkrr liviii); invirU. 

 Diriniun 1. Spict'i.irKRA : AUIoiurn with >n ftiin),'niiil plurirkKc oriJurt : Urrv for the 

 moti p«rt fi<f<dtng tipon otbrr liviti); insect*. Tliu> iliviMon rtititainii, m kt prrxctil roiulilulcj, 

 tb« Cynipida, Eraniida, JcMnrumorhda, Chalndida mhI VroOotrupidit. 

 I>ivl<iun *2. Triiri.irBiiA : Kxtn'niiijr of the aMonirn tudular, n-inunilr, aiKl fumiubcU with 

 • minute »ting : Urvao fintliii^ upon the Unric of other h)'ni<'noptrrtiu.i iuwcLit, or upon 

 dead iaioctjt drpwiitcd )>j the pArvnt with hvr c);^") fur the iiup|>ort of the young when 

 hatched. The Chry$idida. 



The wcoml M.'cti«»n has two siil>«'clion8 : 



Subiiectiun I. I'r.CDONU ( Lalrvillc) : The )>aml joint of the land ryUi>drical : larrir frcdinj; upnn 

 ii(ori><l iniiectji, or animal fluidn provided \>y ncuten. Familitsi Crabronidir, iMrrxda, UrmUcidtr, 

 Spkfgida, ScfJiidtr, Mutillida, Formicida, Vupidir. 



Su)>«ortion II. McLLirr.RA ( LatreiUc) : Ba»al joint of the posterior tami dilated for pollen-Lcarent : 

 larrc feed upon hunej or poUen-pa-itc de|>oaitud by the neuters. Families Andrtmda, Apida. 



TentlirtMlinidae. 



Tiiiii family romprehpn<is th<«io hynn-nopfera iLsiinlly rnlletl taxrflitt. The antrnnB» aro morr 

 variahle as to the numlicr of juint.«, thntt in most of the insects of other familii*?. The 

 families of the onler are fomn-d from considerations that r«'late to the number ami fom> 

 of the joints of tlie antennn*, and tlie numlx-r and lorm of the cells of the winps. 



The insects of this family are less active than the wasps or ichm-umon flies : they fly 

 slunnishly, and do not np|>ear nnxioiis to escajK- when alKHit to W capnind. Ihe winRs 

 fold horizontally uixm the Ixniy when at rest. The female is provid*"*! with an instrument 

 rcsf mhlini; a saw, or rather a double saw, which is hnlgeil in a ri.>>sure Inneath the al>du- 

 men, and covered by two narrow pieces that i>erform the office of a scabbard. The two 

 bladesof the saware jdaced side by side, and so skilfully articnlate<l that when withdrawn 

 from the scabbard they move up and down. This saw, however, has dillVrent forms in 

 different sawflies : it has, moreover, one advantaire over the carixnter's >aw, which only 

 cuts in one direction, and therefore is liable to pinch if it is not well Mt, «s|>ccinlly when 

 employe<l in sawing green Wtx-Ki ; but the saw of the fly has teeth Ujxin the sides, so that 

 It can move easily by cutting a frw groove. It might jjcrhaps 1* calletl a rasp or jilt, as its 

 teeth have the form of the teeth of these instruments. When in u.«e, the saw moves in ft 



