EXPLA3STA.TION" TO PLATES. 



PLATE T. 



C'AliHAGK WORJ1S. 



(Original.) 



Fin. 1. Pieris rapee %* 



FIG. la. Pieris rapie :, , ovipositisg. 



FIG. 16. Pieris rapcecf 



FIG. lo. Pieris rapue, larva 1 of different stages. 



FlG. Irf. Pieris rape?, chrysalis. 



FIG. 2. Pin si a. braiu<ic<r. larva. 



FIG. -2a. Plusia branjica; pupa and cocoon. 



Fro. 3. J\[amestra picta, larva.. 

 FIG. 3a. -J/rtmesfra picta, motli . 

 FIG. 4. Pionea rimosalis, larva. 

 FiG.4a. Pionea rimosalis, moth. 

 FIG. 5. Mamestra chenopodii, larva. 

 FIG. t>. Plutella cruciferaruin, larva. 

 FIG. Ga. Flittella cruciferarum, pupa. 



PLATE II. 



THE LESSER LOCUST. 



(From Report I, TJ. S. E. C.) 



FK;. 1. ('al>jifenns atlitnitt. newly hatched or in 

 first larval stage, from side; Ib, same, 

 while yet pale, from above; lc. aii- 

 tt'una of same. 



FIG. 2. Second stage ; '_', antenna : 2b, thorax, from 

 above- :>. thorax, from side. 



FIG.:;. Third stajre: ::.'/, ant-nna; 3fc, thorax, from 

 above: :;<, thoiax, from si<l< j . 



FIG. 4. Fourth stagt\ or r'rsi j.upnl stage: 4n, an- 

 tenna; !'/, thorax, fioui above; *'. 

 thorax, from side. 



FIG. 5. Fifth, stage, of true pupa; ">, antenna; 06, 

 thorax, from above; 5c, thorax, from 



side; ad, pupal exuvuc, or last skin 



shed. 

 FIG. 6. Sixth stage, or mature insect; the figure 



showing a typical male natural size. 

 FIG. 7. Typical female, with wings expanded 



natural 8ize. 

 FIR. 9. Enlarged thorax of mature insect, from 



above ; ( J, same, from side. 

 FIG. 10. Anal characters of male, from, above; 



JOrt, same, from side; 10&, same, from 



behind. 

 Fi<;. 11. Anal characters of female, from side; lla, 



anal characters of female, irom above. 



PLATE III. 



FOREST TREE INSECTS. 



(Original.) 



FIG. 1. Xoti.atv.s erichsonii, female (enlarged). FIG. Id. Larch twig denuded by A T . erichsonii. 



FlG, Iff. \ei)tat'is erichsonii, outline (natural size). 



FK;.!/>. 

 FlG. lc\ 



erichsonii, larvae of different 



<'>nii, cocoon. 



FIG. 2. fielechia abieticida, adiilt (enlarged). 



!!.. _'</.. Twiji of spruce damaged by G. abieticida. 

 FIG. 3. Turtrix f unit far ana, male (enlarged). 



PL ATI: iv. 



HAND-i;i.O\Vi:i: roR UXDEHSlMtAYlKG AND l".)\V!>KUIXG WlTil 1N6ECTICJDB8. 



(Original ; W. S. Barnard, del.') 



FIG. 1. Direct powder blower; bellows, V; hollow 

 handles, It; powder can. /;,- to dis- 

 charge. *; i'eed adjuster,^; screw-<-aj>.//. 



FIG. 2. Powder-can iii section; blast tube, er; side 

 slot and feed regulator, oj; body of 

 can, 'i>: screw-cap, >t. 



FIG. 15. Exterior cieiv of can n:i(h crooked extension 

 < .'U.i'; screw-cap, /; 

 gaiiuf,/'.- upward discharge, --. 



FlG. 4. Bellow*, a.m. and tfni<jbt extension pipe 

 >'!!/> iff! iliachcrfjp; bellows, /:,- ln-ad,./'; 

 gau/e valve cover, Z; handle, h; fau,y>,- 

 coii]de, or hose, r.- j)ij)e, /, discharge, ,;. 



FIG. ~>. Compact beUoiog~c&n arrangement; cau,pp; 



screw-cap, .'/.- handle, A; valve gauze, 

 Z: liead.j,- discharge pipe, h,e,r,c. 



FIG. 0. Hand bellotcs Kpraij bloirer ; bellows, ", 

 <ian>;e. valve, Z; handle, ft; discharge 

 pipe, h ;/ r i s; spray, s; screw -cap 

 couple,.*/; can.p; apex,a;; bases, a n; 

 supj)ly tube, I. 



FIG. 7. Liquid can in section; blast pipe, ?/; can,/); 

 suction pipe, xp y; blast inlet, ?/; a]>ex, 

 .(: bases, < n : su]>ply tube, I. 



FlG. H. MoUth spray-blotter n-(th direct dischargf: 

 inoulh piece, o ; blast tube, tejs; 

 cou()le. f; screw-cap,;/,- can, p; apex, 

 a 1 ; bases, a ii; supply tube, i. 



PLATE V. 



U.VU'S.U'K I't/.ML 1 rMKl;rtl'RAYI-;R AND Al'l'I-'UTEXAXCES FOR Al'l'LVING I.NSKCTK IUKS. 



FIG. 1. K-napsc.ck pi'mp undersprai/er iu opera- 

 tion: loops, b b; support can, k: suc- 

 tion hose. / h <'; ejeotbt-pump, c x; pis- 

 ton u>.l extension, .<'.- to eddy cham- 

 ber J)ox,/,]e, it: siile spray, x. 

 2. Edd;i chdii-hrr nuzzle, natural si/.e; lace 

 view and sectiou. 



(Original: W. S. Barnard,^.) 



FIG. 3. Eddy clmmbcr nozzle, f, for direct dis- 

 charge,. 



FIG. 4. Trailing pipe fork; its stem pipe, f; y-fork, 

 ii: inside s]>ring rods, a js; flexile 

 joints, ci- : lii'an -plate, or shoe, ee,- uoz- 

 /.]{' arm-pipes, i i; their swing, m n tit; 

 nozzles, n n. 



