\\\Ot\Ted List of Fobest I\Sects of Britisii Couivibia P\Bt '"I
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4 Jouw-; .. \ i. F,:-;T<l'101.. SO(' BBIT. CO J.nll\l\. VOl.. 63 (1966) , DE!'. I, 1966 In view of the intensity of surveys Fores t District and Yukon Territory in southwestern British Columbia, the as in the Kamloops and Nelson Fores t absence of records of these weevils in dis tricts of southern British Colum this region is noteworthy. However, bia. While this may merely reflect a it would be premature to conclude higher population level in the north that neither species occurs in this ern areas, the scarcity of adults in area, until there have been extensive collections from some southern local surveys for root damage; most rec ities where root d '1. mage is common ords of H. warreni in the Okanagan - suggests that a dL erence in the be West Kootenay region are for reared h aviour of the insects may be respon s pecimens, and there are no perching sible for the disparity. Climatic fac records in some localities where there tor '; in the northern regions, such as is a high incidence of root damage. !(;wer clay time temperatures or short An analysis of 11 years' Survey col ~: umm e r lllghts may be more eonduc lections showed that the frequency of ive to cliurnal activity than are con· perching records was almost three clitions preva iling i.n southern British times as great in the Prince George Columbia. References Reid, R. W. 1952. Hypomolyx piceus (DeG.) on lodgepolE: pine. Ca n. Dept. of Agr., For. BioI. Div. Bi-monthly Progress Rept. 8: (4) 2-3 . Stark, R. W. 1959. Studies of the pine root weevil Hylobius warreni Wood in Alberta (1957). Interim Report (1959 ), For. BioI. Lab., Calgary, Alta. Warren, G. L. 1956. The eo-ect of some site factors on the abundance of Hypomolyx piceus (Coleoptera: Curculionidael. Ecology 37: (l) 132-139. :\\\OT\TED LIST OF FOBEST I\SECTS OF BRITISII COU IVIBIA P\BT '"I. BBEPIII~\E_ CEOMETRINAK STEH HHINAE \ N D L\BE 1NTII~\E (GEOMETBrDAE ) B. A. SUGDEN1 Members of the subfamilies Bre prolegs regularly graduated in size. phinae, Geometrinae, Sterrhinae and The la r vae of' Geometrinae, Sterrhi La urentiinae are not rega rded as eco nae, and Larentiinae have only one pair of a bdominal prolegs. The body nomically important forest insects in may be short and stout or twig-like Bri tish Columbia. Only three species with lobed sides, prominences and en are known to have reached epidemic larged tubercles; or slim and tapered proportions: E p i r r ita autumnata with a sh arply bilobed heacl. The lar vae ran ge from green, buff, brown, omissct Harr. in 1954 on apline fir in grey, or black. They are solitary de the central Interior; Rheumaptera sp. foliators of conifers and broadleaved In 1962 on western white birch in the trees a nd shrubs. The number of col Skeena River Valley; and Operoph lections per hos t is shown in brackets tera b1'1lceata Hlst. in 1958 and 1959 only when fewer than five. Pupation on trembling aspen and willow in may occur in the litter on the forest floor or in silken cocoons in the foli north-eastern British Columbia: all age or bark crevices of trees or shrubs. were of short duration. BREPHINAE Larvae of Brephinae differ from those of the other three sub-families Brephos infans oregonensis Swett in having four pairs of abdominal Alnus spp., B etula papyri/era Marsh (2 records). Distributed throughout I Forest Entomology Labor atory, Department of Forestry of Canada, Vernon, B.C. southern British Columbia including JOU IC,AL E;l\TOMOL. Soc. B RIT. COl'\" ~[B I.\ , VOl.. 63 (1966). DEl". 1. 1966 5 I / I .. ! .. o . .. / / / o • Fig. I-Location of points where Hylobius pinicola and H. warreni have been collected in British Columbia and the Yukon Territory. 6 JO UH .\.\1. E ' TO ~ "'I. S,w. RI : I.I.. C OI.! · "IU .\, VOL. 63 ( 1966 ), DEC. 1, 1966 Varcouver Island; rare on forest Va ncouver Island. LARVA: 1 inch; trclS. hea d small, granular, sharply bilobed T,ARV A: 1:V8 inches; head immac wi th a n gles half as high as height of ula L; light green; ocelli black; body hea d, brown or yellowish-green shad brigh t green; indistinct, pale yello'N ed with brown ; body granular, taper ish-white dorsal, addorsal and sub dor."::. l lines; spiracles, m edium buff ing to front, yellowish -green to red outlined with black ; broad yellowish d ish - brown; pale s pecimens with wh i tc su bspiracular stripe; four pall's brown dorsal line <..ln d faintly raised of a L:-j ominal prolegs, very small 8n a ddorsal lines, indistll1ct on TI-III; third a bdominal segment, gradually dorsal a nd addorsal lines less con increasing on fourth and fifth to SpiCUOll S on dark specimens; two reach normal size on sixth; ven ter pl'ominr nt addorsal tllbercles inclined faintl l marked with irregular, pale toward h ead on TI; cel vical shield yellowish-green lines. tapering to a paint; dark specimens Le .. cobrephos brephoides Wlk. -- with subspiraculal' a rea and venter Salix spp. (2 r ecords), B etula sp. (1) , dark reddish - brown ; pa le p:nkish Alnus sp. (1) . Interior British Col ven tral line; A2 - 5 on pale larvae umbia from Wingdam, Peachland, marked with reddish-brown subspira La rkin, Hupel, and MIle 178 Alaska cular spots, bases of prolegs reddish Highway; rare. LARVA : 11/ 8 inche,;; brown ; venter immaculate. h ead medium green marked ,vith light STERRHINAE brown on frons and side:>· ocelli, dark Cosymbia pendulinaria Gn --Betu Za brown , area between ocelli, whitish; spp. Alnus spp. Throughout British body velvety, grass gr een wLh bluish Columbia; common. LARVA: 1 inch; green venter, dorsum with three pairs head small ; pale yellowish- ouff hea v of fine yellowish lines; spiracles, darl{ ily marked with brown or pale tan, brown outlined with blac.k; broad, pale vertexa' lines; body (two color yellow subspiracular stripe; four pairs phases with m termediates) : (a ) pale of a bdomina l prolegs, similar to B. green with indistinct white dorsal in/ans,' mid-ventral line, white. a nd subdorsal lines, us ually with GEOMETRINAE brown spot anterior to spiracle on AI: s ubspiracular area of abdomen Nemoria darwiniata Dyar - Salix m a rked wi h pale greyish-brown; spp. (3 records), Arbutus menziesii venter imrraculate: (b) dors um ir Pursh. (1), Symphoricarpos racemosa regula rly mottled with contrasting Michx. (1) . Southern British Colum patches of brown, yellow, white and bia, Enderby, Cascade, Vancouver and reddish-ora n ge; AI-6 with oblique Victoria; common on shrubs but rare latera l stripes of dark brown a nd pale on forest trees. LARVA : V8 inch, head yellowish-buff; dark brown or black small, square, medium browll ; body spot a nterior to spiracle on AI; venter yellowish - brown to reddish - brown mottled WIth shades of brGwn; vent with four pairs of lateral lobes on r a l line on Al-5 irregular pale yellow A2-5; prominent dorsal tubercles on ish green: (c ) in t ermedia tes, pale TI and cervical shield; cone-like tu green; dorsum lightly mar!<ed with bercles on TIl and III and AI, 6 and sh ades of brown; spot anterior to 7; venter of abdomen suffu:;ed with spiracle on Al usually bro..vl1 or tan; dark brown. venter mottled with brJwn and tan; Nemoria unilinearla Tayl.- Thu1rl yellowish - green, irreg1llar ventral plicata Donn. (1 record) . Britist: ~ol line. umbia: Sidney: rare. LARVA: SImIlar Cosymbia data ria Hlst -- Quercus to N . darwiniata, but green. garryana Dougl. Southern Vancouver Mesothea viridipennata Hlst. - I sland; rare. LARVA: 1 inch; head Salix spp., Alnus sp . (1 record). Van small, tan; body similar to dark phase derhoof, Mud River, Wasa Lake and of C. pendulinaria. JOURN A L EXTO:lror.. SOc. BIn']' . CO L1 ·:lfHl .I. VOl .. 6~ (1866). Dr.(' . 1. 1966 7 LARENTIINAE line; som e with gr ey or blackish sub Nyctobia limitaria Wlk . - Picea -" piracular ma rkings; venter immac glauca (Moench) Voss., P. engelmanni ulate, pale green . P a rry, P. sitch ensis (Bong.) Carr., P. Operophtera occidentalis Rlst. -- mariana (Mill.) BSP., T suga h eter o P01~ulu s tremuloides, P . trich ocarva phylla (R a f.) S a r g., Pseudotsuga Torr. and G r ay ( I record) , Salix spp , m en zi es ii A bies lasiocarpa (DougI. ), Acer spp. (2) , Quercus garryana (2), (Rook) Nutt., A. amabilis (DougI.) Alnus rubra ( 1). Southwestern, cen Forb., A. grandis (DougI.) Lindl, tral coastal regions of British Colum Thuja plicata Donn ., Larix occidellt bia, occasionally common. LARVAE : alis Pinus contorta P. Nutt., DougI., :l4 inch; similar to O. bruceata; some monticola DougI. (3 r ecords), Taxus ~ pecimens also with blacki:ih mark brevitolia Nutt. (1) . Throughou t ings. Brlt~ Columbia; common south of latitude 56'. LARVA: 11/8 inches; Epirrita autumnata omisso Rarr.- h ead medium green, moderately re J' suga hcterophylla, T . mertensiana tractile; body green, subdorsal lines (Bong.) Carr., Abies lasiocarpa, A. pale green or yellowish-green; sub amabil'ts, A. grandis, Picea cngelman spiracular stripe, pale yellow or yel ni, P. glauca, P. sitchensis, Pseudo lowish-white; ventral line whitish or tsuga mell:ziesii, Thuja plicata, Pinus greenish-white. contorta (2 records), Larix occident Cladaro atroliturata Wlk. - Alnus aiis ( 1) , B etula spp., Alnus spp. spp., B etula sp. (1 record). Southern Throughout British Columbia; com interior of British Columbia; rare. mon; an infestation of short duration LARVA: 1 inch; head velvety green; r ecor ded in 1954 near th e Nation Riv body slender, immaculate, velvety er Proj ect Road.