'ifi EXPLANATION or \NaTOMICAI, PI.ATM. 



Fig. 20. C'Uws of Aiilm : o, rt-nirsl filamciiU ; m, mcmlnuttiiu espU)>i<'n ( f the t^rmiiuj joiol, kd- 

 rmiK««l Im-dcsiIi the cUw*. 



Fig*, a, 20 : *bo«ii>K ibo up|>cr sdJ uixli-r riJc o( iLo Jomcrtic crklicl {4t^ta aratMMoiJta). 



Kip. '.'7. MuilUr) p«l|>i {t<) uf iho cricket ; b, gale*. 



1 i/. U''. Lower li|> uf tltc i-rickcl : a, incatuni ; d, labiiim ; (, ••Uiiioiul arUculctioo*, divided into 

 two, three, ur mure \u\>vs ; cc, apparmtlj S'juintcd |«l|<i, jct tbc b«Ml joint enveloped or 

 roliri-alo'l in itic lip. 



I'ij;. tj'>. Maii'lil.l. • "f ill.- ).'ra»«lioppcr (.-Ifryrfiiiw) ; A, luoUr pUlc. 



Vig. :i«». .>Uu.|il.l.» of iJu' ctukcU 



ri(.'«. ;U, ',iS. Fonin of aiilcnnzc 



I'ig. ;;;l. .*H'rrntc<l anlvniiiv. 



F'ig. 34. Laiiirllifiirin antciintr. 



Fig. 3-">. rcctinalc*! anlonnn; ; bipe'linatol, if it produce* two long Iccth, intlead of one ; and iabcl- 

 la»e, when the bnincheH nro very long, ari'l flalfciicd like the nyt of a tan. 



Fig. 1 1 . SelBccoos antenniv : filifumi, wlien the anlennu' are of une<{ual thirkncMi ; uoDilifom, •• io 

 Gg. 4*2 ; cnnifurni, nhen tapering, and angulated at the ride^ ; cubulate, when nhort, and 

 pointed at the tip ; ftuifonii, when narrowed at the two extremities and thickened in the 

 centre, a.H in fig. 43 ; elavate, when they gradunll)- thicken at the top, as in 37 and 35 ; 

 genictilatc, when bent as in 31> abc ; capitate, when terminated in a knob or head, a« 80 , 

 pluroottc, when tlie lateral filaments go off from a »liaft, like those of a feather ; uodoae, 

 when tho juinU are thickened in varioai parts like knobs ; vertioilUtc, when whorls of bain 

 arc placed at e<|tial dtitancvs upon the juinLs ; fasciculate, when the haira arc gathered io 

 bundles upon carh joint ; seopiferou.*, when a single bundle is placed upon one joint ; 

 pahnate, when the antcniiiv arc short, broad, and divided by deep divL'ion.s ; auriculatc, 

 when one of the ba-^al jointi is dilated into a hhield or ear partially eovering tho rest ; 

 ll«sile, when they arc terminated by a cleft knob ; ramose, when several of the joints throw 

 out branehc!" ; furcate, when there arc two branches like a fork ; ariitlate, when the antcnnx 

 arc terminate<l !iy a fine bristle, as in the onlcr Mcsf* ; dentate, when the joints arc anned 

 with short spines ; cylindrical, when they an< of e<|ual diameter throughout ; prismatic, 

 when they rc-scmble a pri-im, or arc forrnctl of three sides. 



11 r.VRT.S OK THE DIGESTIVE APrAR.VTlS.— PLATE B. 



Figs. 2, 3. a »h(>w< the esoph.igns, U'ginning in fig. 3 just behind the head, and terminating in an eo- 

 largcmciit wfaieh is the crop; or, if the crop is al«cnt, it terminates in the ginard d. The 

 esophagus is a simple tube, except in the lepidoptcra. 



Fig. 4 c represents tho position and relation of what has been denominated a Mud.fnr it^'titf^. The 

 giixanl i* ^bown in position, fig. '2 c. The true stomach, or, as railed by - . .. ' ^[fXf^ 



the chylifif rtnlricU, is .«ern in fi,'-. '1 k 3 d : in thi.' org.in tV..- f ..vl \ ■ .id or 



pulpy, and remains until ' '.\kes place. The in' ■■^ in 



fig. 3, whcrv the lat''ral tii) 1 : it preserves a ■ -Vxl, as 



is seen at /; and in Mime instances it Is enlarged or inflated, *a at g. The eircnm is teen 

 at g fig. 2. 



