E N TOMOLOGICAL SOCIETY OF BRITISH COLUMBIA, PROC. (1953), VOL. 50, MAY 15, 1954 31

NOTES ON THE LIFE HISTORY OF CORYPHISTA MEAD I PACK. AND FORM BADIARIA HY. EDW. (: GEOMETRIDAE)

GEORGE A . HARDY Victoria, B.C. The followiIlg notes on the life with a chain-like formation due to a hi ~ t o r y o f the Coryp.his/a meadi series of interrupted black hyphen­ 1':tck. may be () f interest as bearing like marks along the centre of the (111 the rebtiunship o f the colour line, placed at the junction of two seg­ forms. A female of the form badiaria ments. The wider part of the line is was taken on l\Iount Prevost on May suffused with pale lemon yellow, and 20, 1952. From this specimen a batch contains two black tubercles, The of ova was ubtained and the I-esulting spiracles are black and are centred on larvae were rea red to maturitv . the spiracular line, giving to the seg­ Ova. Laid in small box on Mav 20- m ents containing them the appearance 23 inclusive, singly or in short strings of three black dots. U nderside fuscous in which the lI\'a were laid side by with a medium white line. When full side, until a total of 75 was obtained. feci the larva measures 25 mm; it is :-;hape oblong, smooth with minute then a strikingly ha ndsome caterpillar. reticulations. Size 0.75 111m . x 0.50 mm. Pupa. Pupated June IS. All went Colour creamy, becoming darker to­ below the surface of the soil within wards hatching til11e. all hour or so. Colour dull mahogany 1st Instar. Hatched May 27. Length hrown , cremaster shining, black, with 2 ml11. Headlight brown ; body colour­ two short, stout outwardly curved less, translucent, soon becoming green hooks. Length 14 mm. by 4 mm. The after feeding. No markings. The pupa is enclosed in a cocoon made of larva does not cat the egg shell. The loosel y cemented soil particles just be­ food plant is Ilerrosa ,' other lmv the surface of the ground. plants, placed before it were refused. 'When jolted the larva hangs by a silk Imagines. Nearly all emerged on thread to the twig or leaf from which Tulv 8th almost at the same time. it has fallen. When mildlv disturbed \;Vith about 60 arriving' at once the it draws the body into a tig'ht vertical rearing box presented a li vely appear­ loop, claspers and true le gs touching. ance. III this position it remains mo ti onless Remarks. The ova hatched in seven fo r some time, or until all is quiet cl ays from time of laying. The larval ;lgain. periocl was 19 days, while the pupal 2nd Instar. June 1st. LeIlgth 10 111m. life was completed in 23 cla ys, m a king Head pale br()vvn; body da rk green to a total o f 49 days from egg to adult. hlack with w hite interrupted spiracu­ From the 75 ova (Jbtained, 57 adults br line Feeds at first on undersid e \\'ere reared. Of these, 29 were ty pica l (J f leaf, che'wing' throug h the epidermis JIIeadi and 28 were of the form badiaria l)[l une side onl v. Later it fe eds at with no intermediate g rades. Sexes edge of le a f ill t he usual manner. we r e indiscriminateh ' distributed 3rd Instar. June 6th. L ength 14 ml11. am()ng the twu fo rl11 s, \~'ith m ales pre­ Jlead as bef()re; !Jor!\, black vvith a da m i na ti ng. h ruad irregular spir;lcular line and \\i ith such a marked distinction the fu ur thin 'l()n g- itudinal lines on the name badiaria is a convenient term to llack. all white. l'nd erside dark oli ve di sting'uish this colour phase from g reen. typical lIleadi, the colour form frolll 4th Instar. June 10th. Length 18 mm. \~ ' hi c h the miginal description was Head orange: body as before but with drawn. The uniformitv with which the intensification of the black and white; la rvae developed, pupa ted and the spiracular line verY conspicuous and adults emerged, each stage at about 32 ENTOMOLOGICAL SOCIETY OF BRITISII COL UMBIA, PROC. (1 953 ) , VOL. 50, M AY 15, 1954 the samc t im e almust t() the minute, ma ting w(Juld he delayed until the is rathc r rcma rkable under confine­ foll (lwing spring, as the iem:t1e lIIeadi ment, f, badiaria fr()m which the o va were An a tte mpt to mate thc Illoth s "vas (Iht:l in ed was ve ry wurn alld m inu s unsuccessful. As this spccies is :Ippar­ a h inel \\'lIIg, evide ntl v : 1 hil '('rt1:lt­ e ntly sin g le brooded, it is possihle t hat (' d s pecime n,

TWO DECADES OF HOUSEHOLD PESTS IN VANCOUVER: A SUMMARY OF ENQUIRIES

G, J, SPl' N CE R University of British Columbia, Vaowuvn, B ,C.

There are ccrtain ulla \'()ida l)le iIll­ \ Vill carpe ll te r hees 111 n :l il h ll ks in perfectiuns in these rec(.rds, \\,:tl ls a nd he tween s hinglc:-; IIll rllnts 1. Citizcns uf this i'ru\ince :lI1d ()f destr(l v the hllusc? Vanc(luvel- have I)ccn s l(.\I' t() Con cerning' i>roug'ht in tu r ea li ze that they call ge t a m casur e hou ses (I n cu t ti u\\'ers o r leaves, :tj,h id s, (If hclp h()Ill t he U nive rsity ill CI)]1 - thrips, Id (ltches (I ll h('] I\' leaves, IH. re r s Ile cti o n 'with their ill sect pr()hlems, ill rnse stems, LeplugluSJ'/J (Ill holl y, 2, :Vlany e nquiries havc com c ill and aphids ;\Ild scale (I ll fe rn s, have iJ een allsV\'ered ()\'e r the tele ­ Odd ill sel'ls Ihi1H~' In . esp, p r; fl phylla ph(.ll e : only in late r \,e:lrs h:I\'e (Jill/It! I .el'. . ' S('Il1C o f these mcssages hcen 11 1) I'11 - t:li\;; hein g- attracted I ' , g:IS r ec()rded. 3. Those rec()rded h:l\,c iJ een 1l1 ()stl 'v' \I" .rks. lett e r s sent t(. enquirers, (II \yhich J hIring- war \e:lrs. "hllw t(l raise silk:''' carl)ol1 copies are on f·ile. J 1,)1\' t(. re move to:lds, s nak e~ a nd -+ , \V hi le 95 pe r cent, (Ii these r ec() rds l1wl es fro1ll ga rdc n s, are fr()m Va n couve r , I have pur­ l lo\\' to tell sexes ot g ui1l ea iuwl a nd pose h ' included S()111C fr(lm oth e r muskrat. ]Join ts in the Province t() show the ] 1,,\1' ttl I' emllve Ili es and I1l i t('~ i r()11l s pread ()f an or its di strihu­ 1llushr()o1ll heds. ti()n. ~rites in ho ne\'-hee colo ni es and on ,1, l\![os t ()i the e nquiries COIlle ill dur­ earthwor1ll clt1tuI-es. ing: the summer 111()nths when r a111 J I(.V\' to remove s warm s (It h"ne\'­ :I\~'a'v' on fieldwork. Ilees fro1ll g·arde n s. With'the U nive l·sit\· hecoming he t­ J low to re: lI- frogs and toads zlild to te r known, the volu1l1'e of e nquiries is start earthwor1ll farms, steadil y increasing until nnw they \VI1\' has a 1l1oo se a hell ~ average 30 to 40 per month t hroug h()ut vVh\' :Ire there ll U s kunks 111 ~'C ntral the a cade mic \'ear. S0111 e of these en­ I\·,C. ? a nd Sl) o n. qUIries sent' to The Fntnmologist. l'1'edit m e with e ncycl(.pedic kn»wl­ Therel(.re the f(d lowing' re c ( . r d~ are edge ; S0 1ll e I can hand to other m e m­ cut dOWll heavilv to include o nh' hers of (,ur D e pa rt111 e n t, hut the res t those affect ing' hu'1l1 es, ill o ne \\ :!\' ()'r :I nother. L • J have to :l1lS\I'e r. S:11l1Jl les Ilf these a re:- J n vie ll' " i the ;i1)()le- 11l c1lti nncci i111 - pe rlecti()lls ill these r cc('1'(l s , I can g i\'c T ype s of que stions sent In to an you ()nly a ll idea Ilf what household Entomologist pest s occu r in \';ln C()U Ver ; it is at hest, :I 111\\' t,) rem()ve 11l 0SS fr()1ll !'I1()f :; , (Jn l V' :In illdicalioll anel therefo re cU l'\'es \N hat rot ife r s occur in Il10SS ()n n H. i ,,) o r 'histogra1lls of rccords a r e of littlc ] Ill w til pre\'ent vvuodpeckers drilling usc and arc c(ll1 seque ntly omitted :t 11d in r()ofs ;Ind pi g'e() n s fr()11l (Il u li ng ihe e11quiries are g rouped int', t, ,pies CI ,rill ces. llr C:l teg»ries.