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Djvu Document Vol. (~ No.2, June, 1992 79 The Delphacidae of Yukon Territory, Canada (Homoptera: Fulgoroidea) Stephen W. Wilson Department of Biology, Central Missouri State University, Warrensburg, MO 64093 Abstract Twenty nine species of Delphacidae are recorded from the Yukon Territory, Canada, two additional ones from an adjacent region of Northwest Territories, and one species from coastal Alaska. Two new ienera are described: A8chedelphaxWilsonandYakorwdelphaxWilson. Sixnewspeciesaredescribed:AschedelphaxhJ:Jchne Wilson. DelphacodesanufrieviWilson, D. ernelianoviWilson, Javesella llaWilson, Not1wdelphaxglar:iaWilson, and Yukonodelphax kendalkre Wilson. Aschedelphax colorad.ensis (Beamer), Javesella kilmani (Van Duzee), Yukonodelphaxpediforma (Beamer~ and Y. stramineosa(Beamer) are new combinations. Kusnezoviella matisi Anufriev andEmeljanov isa juniorsynonym ofK. macleaniWilson andDelphacodes hyalinaBeameris a junior synonym ofNot1wdelp/w,x albomrinata (8t8.1). Ofthe 32 species included inthe study, 18 have a Holarctic distribution - 10 ofthese are amphi-Beringian. The remaining 14 species are restricted to the Nearetie, 5 of these are ~rded only from the Yukon and Northwest Territories. Introduction ~ar northern environments comes from a number of OCCUITe In e ae c. erecen aun surveys aunal and reVISlonary studies. Numerous papers Of MOngOlia and far-eastem RUsSia illCLUded several have been published which include information on speciespreviouslythoughttobelimitedtotheNearetic thePalaearctiefauna(cat81oguedbyNast1972,1979, (Allufrie... andAverkin1982,Anufrie vandEmelj8nO" 1982). Recent summary wOIks on this fauna include 198~~liowingsurvey of the Yukon delphacid thoseforGreatBritain(LeQuesne19(0),Fennoscandia (Ossiannilsson 1978), Estonia (Vilbaste 1971), • 1] ma ;8. G~an .... annmgs, .. uppy aroeas mUSSla evan el]anov . and G. G. Eo SeudE1eP. Infonnation providedfor eash Forthe Nearetie fauna most records are in scattered species includes 1) reference to illustrations of the species descriptions (e. g., Beamer 1948, 1951), revi­ sions (Scudder 1968, 1964) and the lists of taxa for Quebec and Alberta (Moore 1944, 1950; Strickland specImens eXamlne, In1'onna on on 10 ogy, an ove~liew 1953). Scudder (1979a) noted that 81 specIes of 5} an ofthe species' distribution. New taxa delphacicls are known from Canada and 40 more are are described in detail. undescribedorunrecorded; he didnotprovide a listof Colleetingloealitiespr:'OVicIedinMap1 correspond toloca1i numbers 'venundertheYukondistribution Thedelphacidfaunaofthefarnorth(above &)"N) is virtually unknown. There are a few published records for the NorthwestTemtories(Scudder 1963) were mcorpora m t e y w ere POSSl e; ose and none frOm the Yukon Temtory. Wilson (1988) included in the summary for each species were 80 Insecta Mundi specimens that had identical collecting data as 8(7). Notal median 1000gitudinai pale stripe slighlJy associated males. lighter than rest of notum; aedeagus with elongateslenderapicalprocesses(Figs. 19 21) ................. Nothodelp1uJX tshaunicn Anufrlev Key to Species of Yukon Delphacidae 8'. Notalmedianlongitudinalpalestripemuehlighter thanrestofnotum; aedeaguswith small apical 1. Frons with 2 longttudinal median carinae ...... 2 teeth (e. g., Figs. 32 34) 9 I'. Frons with 1 longitudinal median carina ........ 5 9(8'). Forewmg of brachypter extending to or beyond 2(1). Largepitspresentonfrons. thorax.andabdomen; pygofer,posteriormarginoon.coloro'tls;aedeagus blackwithpartialdorsallongitudinalpalestripe WIth basall/4broadlyroundedondorsalaspect on head and thorax 3 (Fig 25) Notbodelpbax albocarinata (8tlil) 2'. Pitsabsent,lightbrown;posterim: halfofpronotum 9'. Forewmg of brachypter extendmg to fIfth and apicesofforewingscream, abdomenbrown abdominal tergite, posterior margin white; to blaek; male genitalia as in Figs. 1 8 ......... aedeagus with basal V4 sharply pointed on Criemorphus wilhelmi Anufriev and A-leFkin dorsal aspect <Fig. 28) .. ..... Nothodelp1uJX eburneocarinata (Anufriev) 3(2). Male pygofer with one median posteroventral tooth, styles elongate, extendiilgto dors8.1 one­ 10(7'). Body entirely black; aedeagus as in Figs. 32 -34 th~ofpY~er~~ 4-6);femalemesonotum .......................... NothodElphax gW;cia WilSOll anOrewlIlgsoa . 10'. Body with some pale markings; aedeagus as in Acborotilem;uta 8cu dder Figs. 38 40, 43 - 46 11 3'. Male pygofer with three median posteroventral 11(10'). fdldeagu!l with teeth extending almost one half teethorwith a posteroventralconcavity; styles length of aedeagus (Figs. 38 - 40) .. short, not extendingbeyond dorsal one-haltof ................ NothoGelp.w umbmta Emeljanov pygofer; female mesonotum and forewings 11' Aedeagus with teeth not extending beyond one brown 4 third length ofaedeagus (Figs. 43 40) ......... ... Nothodelp1uJX guentheri (Dlabola) 4(8). Male py gofer with three median posteroventzal teeth, genitalia as in Figs. 7 - 9A .. 12(6') Distinctpalestripeborderinglongitudinalmedian ....................... Achorotile 8Ubm ctica Scudder cannae on notum 13 4'. Male pygofer with a median posteroventral 12' Pale stripe not present (yellow mesonotum may concavity; genitalia as in Figs. 10 12 .. haveblackmarkings lateralto lateralcannae), ............................. Achorotile stylata Beamer bodywith brown or pale markings 16 5(1'). Head,includingeyes,muehnarrowerthanthol'ax 13(12). Maleanaltubewithspinescrossing(Figs. 48, 52) (indorsalview, distancebetweenlateraledgeof .................................................................. 14 eyeandtegulasubequaltowidthofeye);pronotal 13'. Male anal tube with spines parallel or diverging lateral carinaestraight, extendingto posterior .................................................................. 15 margin ofpronotum; male pygoferwith lateral fuf18.ted lobes (Figs. 13 - 16) .. 14(13). Frons blackwith yellow carinae; stylewith outer : Mega~lusfla~t8Cr=ord margin strongly concave in middle (Fig. 51); 5'. aedeaguswithnumerous small teeth ondorsal aspect on left side (Fig. 49) . laterally, not extending to posterior margin of .............. Ribautodelp1uJX albostriata (Fieber) pronotum;malepygoferwitboutlateralinftated 14'. Frons mottled brown with yellow ear..nae; style lobes 6 with outer margin broadly convex in middle (Fig. 50); aedeaguswithlargespineinmiddleof 6(5'). Metatibial spur without marginal teeth 7 dorsal aspect (Fig. 54) . 6'. Metatibial spur wiLlI marginal Leeth 12 ................ R~1X1UtodiilphaXpustlla Eirieljanov 7(6). DistincLpalestlipebortleting lougitudinalllledian 15(13'). Apex ofstyle acute (Fig. 68) .. carinae on notum 8 Chilodelphax magnifrons (Crawford) 7'. Stripenotpresent;notumpalewithdarkmarkings 15'. Apex of style WIth Irregular teeth (Flg. 61) ....... to solid black 10 ..... .... ......... Unkanodes excisa (Melichar) J Vol. 6, No. 2, June, 1992 81 f\ () (l r -..... '" ~ --~ ~ r-l. ~ l:f: ( ~ ~ I ..' V ., . I 0\ ~\ U \ Q "" '" ~ ('J"--- 2 I:' \. - / ~\ ~ ~ A \\ If I Vi ./ ,- -- / ~~~/- \'\ // / l,. 1\/1 ~ /7 ,.., \. / / ./ Y,J'-,'( ..:> ). \f /- 0 / / II 0 ./ ./ ~ I "( I \ A n 1')1 Y' \ \ I ~ \ I ,r- ~ 1Ll. 10 / 11\ 11 1 \ / \ J(\ -<..~ • #--- /\~ J \ /..-- r - ...... (j _t-- I \ II \ ) \ 11 \ \ ~ ," ........... I -,,, ....... ........ r"" A J .... / ,',- -.......r ~ " ~ '--", \~~J \ / t, -- \ V f / ......--: °::°.'::-: '-.:.~ :'.: ::-Z·.: ---- " ./ " / --- ---- 12 "'" \' -- - --- !Y ...... / 1'2 "" "- -- Figures 1-15. 1 • 3. Criomorphus wilhelmi. 4 •6. Achorotile aeuta: 7. 9. A subaretiai. 10· 12. A 8tjLata. 13· 15. Megamelii8 floous. 1,4, 10, 14·Analtube,lateralview.2, 5,8, 11,15.Aedeaglls, lateralview 3,6,9, 12·Styles,csudalview 7·Malegenitalia, lateralview. 130 Pygofer and anal tube, caudalVlew. Figure 4 • 6, 10 - 12 afterSCUdder (1963). 16(12') Male pygofer, in caudal View, as long or longer 17(16) FronspaleyeIlowtobIack;carinaeCOllCOIorous(at than wide, not appearing to flare outwards least anteriorly) 18 postenorly(e. g., FIgs. 17, 63); Ifstyles dIverge 17'. Frons mottled brown to black, cannae strongly then not appearingto layalongventral margin contrastingyellow orwhite 23 of pygofer (e. g., Figs. 66, 81) 11 16'. Male pygofer, in caudal view, wider than long, 18(17). Male mesonotum yellow with black markings ovaLe, appearing to flare ouLwards posteriorly lateral to lateral carinae 19 (e. g., Figs. 116, 118); styles stronglydivergent, 18'. Male mesonotum not as above 20 appearing tolay along venLralmarginofpygofer (e. g., Figs. 106, 115) 26 82 Insecta Mundi 19(18). Male pygofel with dorsolateral aspect strongly 29'. Aedeagus withblunt venual projection and deep producedcaudally(Figs.62, 63); analtubewith indentation on dorsal aspect (Fig. 114) .. spines AsChedelphax hoehne 'Nilson . Javesella simillima (LiImav tlOri) 19'. Malepygoferwithdorsolateralaspectnotproduced eaudally; anal tube without spines . 80(28'). Aedeagus with apex sharply angled ............ Delphacodes campestris (Van Duzee) anteroventrally, lacking numerous teeth (Fig. 119) JavB8ellii llii Wilson 2~18') Male pygofer with caudally directed median 30'. Aedeagus with apex broadly rounded, with proJection ventral to base ofstyles (Fig. 70) ... numerous teeth (FIgS. 122, 126) 31 ACXlnthodelphax analis (Crawford) 20'. Male pygofer Without median proJection ....... 21 31(30'). AedeagusWith teeth alongmostofventral aspect and teeth in basalonehalfofdorsalaspect(Fig 21(20'). Male head and notum black; styles each With 122) Javesella beringiaca Emeljanov dorsally projecting tooth near base on medial 31'. Aedeagus with teeth only in apical one half(Fig. aspect
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