The Delphacidae of Yukon Territory, Canada (Homoptera: Fulgoroidea)
Total Page：16
File Type：pdf, Size：1020Kb
University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Center for Systematic Entomology, Gainesville, Insecta Mundi Florida 6-1-1992 The Delphacidae of Yukon Territory, Canada (Homoptera: Fulgoroidea) Stephen W. Wilson Central Missouri State University, [email protected] Follow this and additional works at: https://digitalcommons.unl.edu/insectamundi Part of the Entomology Commons Wilson, Stephen W., "The Delphacidae of Yukon Territory, Canada (Homoptera: Fulgoroidea)" (1992). Insecta Mundi. 453. https://digitalcommons.unl.edu/insectamundi/453 This Article is brought to you for free and open access by the Center for Systematic Entomology, Gainesville, Florida at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Insecta Mundi by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Vol. 6: No. 2, June, 1992 79 The Delphacidae of Yukon Territory, Canada (Hornoptera: Fulgoroidea) Stephen W. Wilson Deparbnent 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 genera are described: Aschedelphax Wilson and Yuiw~lphmWilson. Six new species are described: Asc~lphmhock Wilson, Delphumdes anufrievi Wilson, D. erneljanovi Wilson, Javesella I& Wilson, Nothodelphaxg2acia Wilson, and Yuhnodelphax kendallae Wilson. Ascheaklphax cobmdensia (Beamer), Javesella kilmani (Van Duzee), Yuiwnodelphaxpediforma(Beamer) and Y. stmmineosa (Beamer) are new combinations. Kwnezovielh matisi Anufriev and Emeljanov is a junior synonym of K. macleani Wilson and Delphuccdes hyalinu Beamer is a junior synonym of Nothoclelphm albomrinata (Stil). Ofthe 32 species included in the study, 18 have a Holmtic distribution - 10 of these are arnphi-Beringian. The remaining 14 species are restricted to the Nemtic, 5 of these are recorded only from the Yukon and Northwest Territories. Introduction surveyed the delphacid fauna of Alaska and found 15 Our hnited knowledp of the delphacid fauna of species in 10genera. Ten of these Alaskan speciesalso far northern environments comes from a number of occurredinthe Palaearctic.The recent faunal surveys faunal and revisionary studies. Numerous papers of Mongolia and far-eastern Fhssia included several have been published which include information on species previouslythought to be limitedto the Nedc the Palaemtic fauna (catalogued by Nast 1972,1979, (Anufriev and Averkin 1982, Anufriev andEmeljanov 1982). Recent summary works on this fauna include 1981,1988). those for Great Britain (LeQuesne 1960), Fennotxandia The following survey of the Yukon delphacid (Ossiannilsson 1978), Estonia (Vilbaste 1971), fauna is based on specimens principally collected by Mongolia (Dlabola 1965,1966; Emeljanov 1982) and E. Bijdemast, S. G. and R J. Cannings, C. S. Guppy far-eastern Russia (Anufriev and Emeljanov 1988). and G. G. E. Scudder. Information provided for each For the Nearctic fauna most mrds are in scattered species includes 1) reference to illustrations of the male genitalia and distribution maps, 2) a listing of species descriptions (e. g., Beamer 1948,1951), revi- sions (Scudder 1963, 1964) and the lists of taxa for synonyms, 3) a summary of collecting data for the Quebec and Alberta (Moore 1944,1950; Strickland specimens examined, 4) information on biology, and taxa 1953). Scudder (1979a) noted that 81 species of 5) an overview of the species' distribution. New am delphacids are known from Canada and 40 more am described in detail. undescribed or unrecorded; he didnot provide a list of Collectinglocalities providedin Map 1correspond species. to locality numbersgiven underthe Yukon distribution The delphacid fauna of the far north (above 60°N) of each species. The key for identification is based is virtually unknown. There are a few published principally on male specimens. Female specimens records for the Northwest Territories (Scudder 1963) were incorporated into the key where possible; those and none from the Yukon Territory. Wilson (1988) included in the summary for each species were 80 Insecta Mundi specimens that had identical collecting data as 8(7). Notal median longitudinal pale stripe slightly associated males. lighter than rest of notum; aedeagus with elongate slender apical processes (Figs. 19- 21) ................. Nothcdelphax tshauniua Anufriev Key to Species of Yukon Delphacidae 8'. Notalrnedianlongitudinalpalestripemuchlighter than rest of notum; aedeaguswith small apical 1. hnswith 2 longitudinal median carinae ...... 2 teeth (e. g., Figs. 32 - 34) .............................9 1'. hnswith 1 longitudinal median carina ........ 5 9(8'). Forewing of brachypter extending to or beyond 2(1). Large pits present onhns,thorax, and abdomen; pygofer, posteriormarginconcolomus;aedeagus blackwith partialdorsal longitudinalpale stripe with basal l/4 broadly rounded on dorsal aspect on head and thorax ...................................... 3 (Fig. 25) ..... Nothodelphax albooarinata (SGl) 2'. Pits aknt;light browr~,posterior halfofpronotum 9'. Forewing of brachypter extending to fifth and apices of forewings cream, abdomen brown abdominal tergite, posterior margin white; to black; male genitalia as in Figs. 1 - 3 ......... aedeagus with basal 1/4 sharply pointed on Criomorphus wilhelmi Anufriev and Averkin dorsal aspect (Fig. 28) ................................... ..... Nothodelphux ebuneocarinata (Anufriev) 3(2). Male pygofer with one median postemventral tooth, styles elongate, extendingto dorsal one- 1qT). Body entirely black; aedeagus as in Figs. 32 -34 third of pygofer (Figs. 4 - 6); female mesonotum ..........................Nothoclelphaxglacia Wilson and forewings black ....................................... 10'. Body with some pale markings; aedeagus as in ............................ Achomtile acuta Scudder Figs. 38 - 40, 43 - 45 .................................. 11 3'. Male pygofer with three median postemventral ll(10'). Aedeagus with teeth extending almost one half teeth or with a postemventral concavity; styles length of aedeagus (Figs. 38 - 40) .................. short, not extending beyond dorsal one-half of ................ Nothodelphux umbrata Emeljam pygofer; female mesonotum and fomwings 11' Aedeagus with teeth not extending beyond one bmwn ..........................................................4 third length of aedeagus (Figs. 43 - 45) ......... ................. Nothoctelphrw: guentheri @labola) 4(3). Male pygofer with three median pmteroventral teeth, genitalia as in Figs. 7 - 9A ................... 1x6'). Distinct pale stripeborderinglongitudinal median .......................Achorotile subarctica Scudder carinae on notum ...................................... 13 4'. Male pygofer with a median postemventral 12'. Pale stripe not present bellow mesonotum may concavity; genitalia as in Figs. 10 - 12 ........... have blackmarkings lateral to lateral carinae), .............................Achorotile styhta Beamer body with brown or pale markings ............ 16 (1) Head, includingeyeg,muchnamwer than thorax 13(12). Male anal tube with spines crossing(Figs. 48,52) (in dorsalview, distancebetweenlateraledge of .................................................................. 14 eye and tegulasubequa1towidthofeye);pronotal 13'. Male anal tube with spines parallel or diverging lateral carinae straight, extending to posterior c margin of pronotum; male pygoferwith lateral inflated lobes (Figs. 13- 15) ........................... 14(13). From blackwith yellow carinae; style with outer ..........................Megamelua flavua Crawford margin stmngly concave in middle (Fig. 51); 5'. Head, including eyes, nearly as wide as thorax; aedeaguswith numerous small teeth on dorsal pmnotal lateralcarinae usually stronglycurved aspect on left side (Fig. 49) ............................ laterally, not extending to posterior margin of .............. Ribautodelphax albostriata (Fieber) pmnotum; male pygoferwithout lateral inflated 14'. Fmns mottled brown with yellow carinae; style lobes ............................................................6 with outer margin broadly convex in middle (Fig. 55); aedeaguswith large spine in middle of 6(5'). Metatibial spur without marginal teeth .......... 7 dorsal aspect (Fig. 54) ................................... 6'. Metatibial spur with marginal teeth ............. 12 ................ Ribautodelphux puailla Emeljanov 7(6). Distin&Palestripeborde*glongitudina1median 16(13'). Apex of style acute (Fig. 68) .............................. carinae on notum ........................................8 ............ Chilodelphax magniipns (Crawford) 7'. St@not~-t;notum~alewithdarkmarkin%s 15'. Apex of style with irregular teeth (Fig. 61) ....... to solid black .............................................. 10 .........................Unkanodes exciaa (Melichar) Vol. 6, No. 2, June, 1992 81 Figures 1 - 1B. 1- 3. Criomorphw wilhelmi. 4 - 6. Achomtile ma&. 7 - 9. A. subadca 10 - 12. A. styk 13- 15. Megamelus flwus. 1,4,10,14-Anal tube, lateralview. 2,5,8,11,15 - Aedeagus, lateralview. 3,6,9,12 -Styles, caudalview. 7 - Malegenitalia, lateral view. 13Pygofer and anal tube, caudal view. Figure 4 - 6,lO - 12 after Scudder (1963). 16(12'). Male pygofer, in caudal view, as long or longer 17(16). Frons pale yellow toblack, carinaeconcolorous(at than wide, not appearing to flare outwards least