Robber flies (Diptera: Asilidae) new to Canada, British Columbia, Yukon and the Northwest Territories with notes on distribution and habitat

8 Pages·1994·4.5 MB·English

by  Robert A Cannings

J.Entomol.Soc.Brit.Columbia91,December, 1994 19
Robber flies (Diptera: Asilidae) new to Canada,
British Columbia, Yukon and the Northwest Territories
with notes on distribution and habitat
ROBERT CANNINGS
A.
ROYALBRITISHCOLUMBIAMUSEUM,VICTORIA,B.C.V8V1X4
ABSTRACT
Twenty-onespeciesofrobberfliesfromBritishColumbia,notpreviouslyreportedinCanada,
arelisted.Threegeneraarealsonew: Callinicus,Coleomyia,andMegaphorus.Twoadditional
genera {Stichopogon andAndrenosoma) and 12 species already known from Canada are re-
portedforthefirsttimefromBritishColumbia.SixteenspeciesnewtotheYukon,andsevento
theNorthwestTerritoriesarealsorecorded.TheserecordsupdatethelistofAsilidaeforthisre-
gionlastpublishedbyStoneandothersin 1965.
Keywords: Diptera, Asilidae, British Columbia, Yukon, NorthwestTerritories, distribution,
status
INTRODUCTION
Thispapermakes some additionstothe listofthe robberflies (Diptera: Asilidae)ofBritish
Columbia, Yukonand westernNorthwestTerritories anddiscussesthe statusofotherspecies.
Someofthesenewrecordsrepresentrecentcollections,somearetheresultoftheexamination
ofunidentifiedormisidentified specimens in variouscollections, and some arerecordsofma-
terialsimplynotpreviouslypublished.ThestartingpointforthelististhetreatmentoftheAsil-
idae by Martin and Wilcox in the Catalogue ofDiptera of America by Stone etal (1965).
Speciesnotlistedfromthe region in thatCatalogue, andthathavenotappeared insubsequent
publications, are considered new records. Three short lists (Foxlee 1941, 1944; Hine 1904),
overlookedandnotinthe 1965Catalogue,arealsoincludedhereasnewmaterial.Twenty-five
specieswhoseoccurrencesintheregionhavebeenpublishedsincetheCatalogue,arelistedsep-
aratelyandtheirstatusisclarified.ThepurposeoftheselistsistoupdateStone'sCataloguefor
the westernCanadianregion.
FewpublicationsrelevanttotheasilidfaunaoftheregionhaveappearedsincetheCatalogue
waspublished.Adisoemarto(1967)summarizedthedistributionoftherobberfliesofAlberta,
and included some data from surrounding regions. Adisoemarto and Wood (1975)'published
someBritishColumbiarecordsintheirrevisionofDioctriaandrelatives,asdidMartin(1975)
in his work on the Asilini and Wilcox on Ejferia (1966) and Stenopogon and Scleropogon
(1971).Cannings(1989)addedanumberofspeciestotheCanadiantotalinastudyoftheasilid
faunaofaFestucagrassland intheOkanaganValleyofBritishColumbia.
Thespecieslistshereareannotatedwithbriefcommentsonrange,distributionintheareaun-
derconsideration,andotherinformation.Localitiesare givenforthose speciesrepresentedby
only one ortworecords. Museum collectionscontaining the material examined are: the Cali-
fornia Academy ofSciences, San Francisco [CAS]; Canadian National Collection, Ottawa
[CNC];SpencerEntomologicalMuseum,UniversityofB.C.,Vancouver[UBC];RoyalBritish
Columbia Museum, Victoria [RBCM]; Royal Ontario Museum, Toronto [ROM]; Pacific
ForestryCentre,Victoria [PFC]; UniversityofGuelph,Guelph [UG].
RESULTS
Twenty-one species and three genera previously unrecorded in Canada are documented
(Table 1). The generaare Callinicus, Coleomyia, andMegaphorus. Twelve otherspecies and
two genera {Andrenosoma and Stichopogon) have not previously been reported from British
Columbia. SixteenspeciesarenewtotheYukonandseventotheNorthwestTerritories.
20 J.Entomol.Soc.Brit.Columbia91,December, 1994
Table1
RangeextensionsofAsilidae.Speciesarenewlyrecordedforthejurisdictionindicated.
CAN=Canada;BC=BritishColumbia;YT=YukonTerritory;NWT=NorthwestTerritories.
VT W
1 1 i> 1
X X
Leptogasterarida
X X
Leptogasterfornicata
X X
^Callinicuspollenius
^Coleomyiahinei X X
Cyrtopogonablautoides X X
Cyrtopogonauratus X
Cyrtopogonbimacula X X
Cyrtopogondasylloides X X
Cyrtopogondubius X X
Cyrtopogonfalto X
Cyrtopogonfumipennis X
Cyrtopogonglarealis X
Cyrtopogonlineotarsus X X
Cyrtopogonprinceps X X
X
Cyrtopogonsansoni
Eucyrtopogondiversipilosus X
Eucyrtopogonnebulo X
Eucyrtopogonpunctipennis X X
Heteropogonsenilis X X
Lasiopogonactius X X
Lasiopogoncanus X X
X
Lasiopogoncinereus
Lasiopogonhinei X X
Lasiopogonprima X X X
Lasiopogonwillametti X X
X X
Nicoclesdives
Nicoclesrufus X X
^Stichopogonfragilis X X
X
^AndrenosomaJulvicaudum
Laphriaastur X X
X
Laphriagilva
X
Laphriaindex
X X X
Laphriainsignis
X X
Laphriajanus
X
Laphriamilvina
X
Laphriapartitor
X X X
Laphriaposticata
V Y
Laphriasackeni /\
Laphriaventralis X X
X
Laphriavivax
Laphriavultur X X
X
Ejferiafrewingi
Machimuscallidus X
Machimusvescus X X
^Megaphoruswillistoni X X
1. GenusisnewtoCanada
2. GenusisnewtoBritishColumbia.
J.Entomol.Soc.Brit.Columbia91,December, 1994 21
ListofRobberFliesNewto Canada,BritishColumbia,
YukonTerritory,andNorthwestTerritories
Specificlocalitiesarelistedwhenonly afewcollectionsitesareknown,otherwiseageneral
descriptionofthedistribution is given. The faunal elementtowhich the speciesbelongs is in-
dicatedbythefollowingterms:
Beringian: restricted tothe northernpartsoftheregion,especially Alaska, theYukon, andex-
tremenorthwesternMackenzie.
Boreal: transcontinental in the Boreal Forest and south, to varying degrees, in the western
mountains.
Cordilleran: mountainforestsofwesternNorthAmerica.
Holarctic: parts ofboth North America and Eurasia, usually Arctic-Alpine or Boreal Forest
species.
Intermontane: plateaus and valleys ofthe western mountain ranges; predominantly grassland
species. Afew species inthis category also spread into the grasslandsofthe westernGreat
Plains.
PacificCoast: westoftheCoastMountains; lowlandforestorseabeach species.
Southern: fromcoasttocoastsouthoftheBorealForest,transcontinentalatleastintheUnited
States; inCanadaonly inextremesouthernareas.
Western: westernmountainsandassociatedlowlands,oftenextendingintotheadjacentareasof
-
theGreatPlains.
SubfamilyLeptogastrinae
Leptogaster arida Cole. Western; dry forests and adjacent grasslands ofthe south coast and
southern InteriorofBritish Columbia [CNC, RBCM]. Ranges east toAlbertaand south to
California.NewtoCanadaandBritishColumbia.
Leptogasterfornicata Martin. Intermontane; dry forests and adjacentgrasslands ofthe south-
emInteriorofBritishColumbia.Pavilion [UBC]; specimensfrom Osoyoos [RBCM,UBC]
areclosetothisspecies.AlsoknownfromIdaho.NewtoCanadaandBritishColumbia.
SubfamilyDasypogoninae
Callinicuspollenius (Cole). Cordilleran; dry forestsofthe southernInteriorofBritishColum-
bia[CNC,RBCM,UBC,PFC].SouthtoWyomingandCalifornia.GenusnewtoCanadaand
BritishColumbia.
ColeomyiahineiWilcoxandMartin.Cordilleran; dryforestsofthe southernInteriorofBritish
Columbia [CNC, RBCM, UBC]. South to Oregon and Idaho. Genus new to Canada and
BritishColumbia.
Cyrtopogon ablautoides Melander. Cordilleran; dry forests ofthe southern Okanagan Valley
(Oliver[CNC]). SouthtoWashington.NewtoCanadaandBritishColumbia.
CyrtopogonauratusCole.Cordilleran; subalpineforestsofsouthernBritishColumbianorthto
theCaribooregion[CNC,RBCM].EasttoAlbertaandsouthtoUtahandWyoming.Newto
BritishColumbia.
Cyrtopogon bimacula Walker. Boreal; widespread in British Columbia, Yukon (north to Old
Crow),andNorthwestTerritories[CNC,RBCM,UBC].Trans-CanadasouthtoNewHamp-
shireandNewMexico. NewtoYukonandNorthwestTerritories.
CyrtopogondasylloidesWilliston.Cordilleran; subalpineforestsofsouthernBridshColumbia
[CNC,RBCM,UBC]. SouthtoCalifornia.NewtoCanadaandBritishColumbia.
Cyrtopogon dubius Williston. Cordilleran; subalpine forests of southern Coast Mountains
(Squamish,DiamondHeadTrail [CNC]). SouthtoOregon.NewtoCanadaandBritishCo-
lumbia.
22 J.Entomol.Soc.Brit.Columbia91,December, 1994
Cyrtopogonfalto Walker. Boreal; forests ofcentral British Columbia (Skeena River Valley
[CNC]). East toNovaScotia, south along the Appalachians toFlorida. New toBritish Co-
lumbia.
CyrtopogonfumipennisWilcoxandMartin.Cordilleran;mountainforestsnorthtothesouthern
Yukon (Nahanni Range Rd., km 128; Carcross [UBC]). South to Washington and Idaho.
NewtoYukon.
Cyrtopogon glarealis Melander. Cordilleran; forests ofthe British ColumbiaInteriornorth to
thecentralYukon(PellyCrossing[UBC]).EasttoAlberta,southtoCaliforniaandWyoming.
NewtoYukon.
Cyrtopogon lineotarsusCurran. Cordilleran; forestsofthe British ColumbiaInterior(Robson
[RBCM]),northtoN.W.T.(Yellowknife[CNC]).AccordingtoFisherandWilcox(1987),C.
predatorCurranisasynonymofC. lineotarsus; C.predatorisknownfromFortEraserand
Fort St. James, B.C. [CNC]. East to Alberta, south to Washington and Montana. New to
BritishColumbiaandNorthwestTerritories.
Cyrtopogon princeps Osten Sacken. Cordilleran; subalpine forests ofthe Cascade Mtns. of
southwestern British Columbia [RBCM]. South to California. New to Canada and British
Columbia.
Cyrtopogon sansoni Curran. Cordilleran; Kootenay region ofsoutheastern British Columbia
(Robson [CNC]).EasttoAlberta. NewtoBritishColumbia.
EucyrtopogondiversipilosusCurran.Cordilleran;forestsoftheBritishColumbiaInteriornorth
tothesouthernYukon(Carcross [UBC]).EasttoAlberta. New toYukon
Eucyrtopogon nebulo(Osten Sacken). Cordilleran; dry forestsandadjacentgrasslands; wide-
spreadinBritishColumbia(Cannings 1989)northtothenorthernYukon(OldCrow,Mason
Hill [RBCM, UBC]). South toCalifornia. New to Yukon. Yukon specimensmayrepresent
anundescribedspecies.
Eucyrtopogon punctipennis (Melander). Cordilleran; forests of southern British Columbia
[CNC,RBCM,PEC]. South toIdahoandWashington. NewtoCanadaandBritish Colum-
bia.
Heteropogonsenilis(Bigot).Cordilleran;forestsofsouthernBritishColumbia[CNC,RBCM].
SouthtoCalifornia.NewtoCanadaandBritishColumbia.
LasiopogonactiusMelander. PacificCoast; sandbeachesofcoastal BritishColumbia(Queen
CharlotteIs. [RBCM]).SouthtoCalifornia.NewtoCanadaandBritishColumbia.
Lasiopogon canus Hine. Beringian; widespread in dry forests and streambanksofYukon, in-
cluding shrub tundra; easttoTuktoyaktukPeninsula,NorthwestTerritories [CNC, RBCM,
ROM,UBC].AlaskasouthandeasttonorthwesternAlberta.NewtoYukonandNorthwest
Territories.
LasiopogoncinereusCole.Cordilleran;forestsandstreambanksofsouthernInteriorofBritish
Columbia[RBCM,UBC].EasttoAlberta,southtoWyomingandCalifornia.NewtoBritish
Columbia.
Lasiopogon hinei Cole and Wilcox. Beringian; dry forests and streambanks ofYukon [CAS,
CNC,RBCM,ROM,UBC]. AlaskasouthandeasttonorthwesternAlberta.NewtoBritish
ColumbiaandYukon.
Lasiopogonprima Adisoemarto. Beringian; dry forests and streambanks ofnorthern British
ColumbiaandYukon[CAS,RBCM,ROM,UBC,UG]NorthwestTerritories(CacheCreek
Springs [UBC]). Alaskasouth andeasttonorthwesternAlberta. New toBritish Columbia,
YukonandNorthwestTerritories.
Lasiopogon willamettiColeandWilcox.PacificCoast; sandbeachesofVancouverIslandand
sandbanksandbarsoflowerEraserRiveranddelta,southwesternBritishColumbia[RBCM,
UBC]. SouthtonorthernCalifornia.NewtoCanadaandBritishColumbia.
J.Entomol.Soc.Brit.Columbia91,December, 1994 23
Nicocles dives (Loew). Cordilleran; dry forests ofthe southern Interior ofBritish Columbia
[CNC, RBCM, UBC]. Listed in Foxlee (1944). South to California. New to Canada and
BritishColumbia.
Nicocles rufus (Williston). Pacific Coast; Garry Oak/Arbutus/Douglas-fir woods ofsouthern
VancouverIslandandGulfIslandsofsouthwesternBritishColumbia[CNC,RBCM,UBC].
SouthtoCalifornia.NewtoCanadaand BritishColumbia.
Stichopogonfragilis Back. Intermontane; sandy grasslands ofthe southern Okanagan Valley
(Osoyoos [CNC]). South to New Mexicoand Arizona. Species new toCanada; genus new
toBritishColumbia.
SubfamilyLaphriinae
Andrenosomafulvicaudum (Say). Southern; forests ofsouthern Interior ofBritish Columbia
[RBCM, UBC]; noted inFoxlee (1941). Transcontinental in the United States; south tothe
tropics.GenusandspeciesnewtoBritishColumbia.
LaphriaasturOstenSacken.Cordilleran;forestsofsouthernBritishColumbia[CNC,RBCM,
UBC]; listedinFoxlee(1941). SouthtoCalifornia. NewtoCanadaandBritishColumbia.
Laphriagilva(Linnaeus).Holarctic(BorealinNorthAmerica);widespreadinforestsofBritish
Columbia,YukonandNorthwestTerritories [CNC,RBCM,UBC].Yukon(Dawson,White-
horse [CNC]).EasttotheAtlantic,southtoMassachusettsandOregon. NewtoYukon.
LaphriaindexMcAtee. Boreal;forestsofBritishColumbiaInterior(Robson [RBCM,UBC]).
Transcontinental inCanada; southtoVirginia.NewtoBritishColumbia.
Laphria insignis (Banks). Boreal; forests ofBritish Columbia Interior [CNC, RBCM, PFC,
UBC], north to the southern Yukon and NorthwestTerritories. Yukon (Dawson, 14mi [23
km] E [CNC]; Nahanni Range Rd., km 128 [UBC]). NorthwestTerritories (NormanWells
[CNC]).EasttoLabrador; intheWest,southtoCalifornia.NewtoBritishColumbia,Yukon
andNorthwestTerritories.
LaphriajanusMcAtee.Boreal;forestsoftheBritishColumbiaInteriornorthtoNorthwestTer-
ritories (South Nahanni Rd. [CNC]) and Yukon (Alaska Hwy. km 1403, Judas Creek
[ROM]).TranscontinentalintheBorealForest,southtoNewYorkandMichiganintheEast,
UtahandColoradointheWest.NewtoNorthwestTerritoriesandYukon.
Laphria milvina Bromley. Cordilleran; forests ofBritish Columbia Interior [CNC, RBCM,
UBC] northtothe southern Yukon (Rancheria-SwiftRiver [CNC]). South to Oregon. New
toYukon.
Laphriapartitor (Banks). Cordilleran; forests ofsouthern Yukon (Slims River delta, Kluane
[ROM]) souththroughBritishColumbia(CNC,RBCM,UBC)andWashingtontoOregon.
NewtoYukon.
Laphriaposticata Say. Boreal; forests ofthe British Columbia Interior [RBCM, UBC] north
to the southern Yukon (Carmacks, Whitehorse [CNC]) and Northwest Territories (Fort
Simpson,FortSmith [CNC]).EasttotheAtlantic,southtoNewYorkintheEastandBritish
ColumbiaintheWest. NewtoBritishColumbia,YukonandNorthwestTerritories.
Laphria sackeni (Banks). Cordilleran; forests of the southern Interior of British Columbia
[RBCM,UBC]. SouthtoCalifornia. NewtoCanadaandBritishColumbia.
LaphriaventralisWilliston.PacificCoast;dryforestsofsouthernVancouverIslandandGulfIs-
lands ofsouthwestern British Columbia [CNC, RBCM, PFC, UBC]. South to California.
NewtoCanadaandBritishColumbia.
Laphriav/vorWilliston.Cordilleran;forestsoftheBritishColumbiaInteriornorthtothesouth-
emYukon(Carcross [UBC]). SouthtoNewMexico.NewtoYukon.
LaphriavulturOstenSacken.Cordilleran;forestsofsouthernBritishColumbiasouthof51 de-
grees N [RBCM, UBC]; listed in Foxlee (1941). South to California. New to Canada and
BritishColumbia.
24 J.Entomol.Soc.Brit.Columbia91,December, 1994
SubfamilyAsilinae
EjferiafrewingiWilcox.Western; grasslandsofupper(eastern)partsofKootenayandColum-
bia river valleys in British Columbia [CNC, RBCM, UBC]. Described in Wilcox (1966)
fromOregon.EasttoSaskatchewan,southtoUtahandCalifornia.NewtoBritishColumbia.
Machimus callidus (Williston). Cordilleran; Widespread in the forests of British Columbia
north to the southern Yukon (Whitehorse [CNC], Snafu Creek [UBC]). South to Oregon.
NewtoYukon.
Machimus vescus (Hine). Cordilleran; dry forests of southern Interior of British Columbia
(Oliver[UBC]). SouthtoCalifornia.NewtoCanadaandBritishColumbia.
Megaphorus willistoni (Cole). Intermontane; grasslands ofsouthern Okanagan and Similka-
meen valleys (Chopaka [RBCM]). South to CaliforniaandArizona. Genus new to Canada
andBritishColumbia.
Two species recorded from British Columbia in the literature are separated here from the
mainlistbecausetheiridentificationisdoubtfulandspecimenscouldnotbelocatedforconfir-
mation. Iftheiridentification were confirmed, these species would be new toCanada. Cyrto-
pogon rejectusOstenSacken,citedunderthename C.positivus, wasreportedfromPortRen-
frewbyHine(1904).AfemaleintheOhioStateCollectionidentifiedasthisspecies,apparently
byHine(HopeMts.,27.vii.1906,R.V.Harvey), isclosertoC.fumipennisWilcoxandMartin.
Negasilusplatyceras (Hine) was reportedfromRobsonbyFoxlee (1941). Itwas identifiedas
AsilusplatycerasbyBromley;the specimencannotbelocated.
Thefollowing25 specieswerenotrecordedinStoneetal. (1965)fromtheregionexamined
herein, but have subsequently been recorded in the references indicated and, in most cases,
throughadditionalcollections:
SubfamilyDasypogoninae
Cophurabrevicornis(Williston).Western;PonderosaPineandDouglas-firforestsandlessfre-
quentlyinadjacentgrasslandsofsouthernInteriorofBritishColumbianorthtotheChilcotin
region [CNC, RBCM, UBC]. South and east to Nebraska, Colorado and California. First
recordedinCannings(1989).
DicolonusnigricentrumAdisoemartoandWood.Intermontane;grasslandsofsouthernOkana-
gan and Similkameen valleys. South to Washington and Idaho. First recorded in Adisoe-
martoandWood(1975).Additional specimensfromOsoyoos(BladesandMaier 1992)and
Penticton(Cannings 1989) [RBCM].
Dicolonus simplexLoew. Pacific Coastal; Garry Oak parkland ofsouthern Vancouver Island
andGulfIslands. SouthtoCalifornia.FirstrecordedinAdisoemartoandWood(1975).Ad-
ditional specimens [RBCM,UBC,CNC].
Dioctria henshawi Johnson. Intermontane; grasslands and dry forests ofsouthern Okanagan
andSimilkameenvalleys. South toCaliforniaandUtah.Firstrecorded inAdisoemartoand
Wood(1975).AdditionalspecimensfromOsoyoos(BladesandMaier 1992) [RBCM].
DioctriapusioOstenSacken.Cordilleran;dryforestsandadjacentgrasslandsofsouthernInte-
riorofBritish Columbia. South toColorado and California. Firstrecorded in Adisoemarto
andWood(1975). Additional specimensfromPenticton(Cannings 1989) [RBCM].
Lasiopogon aldrichiiMelander. Cordilleran; widespread inmountains ofsouthern Interiorof
BritishColumbia,especiallyinEngelmannSpruce/SubalpineFirforests. SouthtoColorado
andUtah.FirstrecordedinAdisoemarto(1967).Additionalspecimens [RBCM,UBC].
Lestomyia sabulona (Osten Sacken). Intermontane; grasslands ofsouthern Okanagan Valley,
BritishColumbia[CNC,RBCM,UBC].EasttoAlberta,southtoWyoming andCalifornia.
First reported in Adisoemarto (1967). Additional specimens (Cannings 1989) [RBCM,
UBC].
Myelaphus lobicornis (Osten Sacken). Intermontane; local in southern Interiorgrasslands of
BridshColumbia,especially where Chrysothamnus nauseosus (Pall.) Britt. (Rabbit-brush)
ispresent. South to Utah and California. Firstrecorded in Adisoemarto and Wood (1975).
)
J.Entomol.Soc.Brit.Columbia91,December, 1994 25
Additional specimens from Penticton [RBCM, UBC, CNC] and Dutch Creek, Columbia
Lake [RBCM] (Cannings 1989).
Nicocles utahensis Banks. Intermontane; dry forests and grasslands ofthe southern Interior.
EasttoAlberta,southtoUtahandCalifornia.CitedinFoxlee(1941)asN.punctipennisMe-
lander.RecordedbyAdisoemarto(1967).
Ospriocerus abdominalis (Say). Western; rare in low elevation grasslands of Thompson,
Okanagan,andSimilkameenvalleysofsouthernBritishColumbia.EasttoManitoba,south
toPennsylvania,NebraskaandTexas.FirstrecordedinAdisoemarto(1967);additionalspec-
imens [CNC,RBCM].
Scleropogonbradleyi(Bromley). PacificCoastal (in the northernpartofitsrange); GarryOak
parklandsofsouthernVancouverIslandandGulfIslands.SouthtoCalifomia.Thespecimen
ofS. helvolusLoewlisted inHine (1904) shouldbereferredtothis species; itis intheOhio
StateCollectionandwasexaminedduringthisstudy. SpecimensrecordedinWilcox (1971
fromLytton in the southern InteriorofBritishColumbiaareapparently S. neglectus. Addi-
tionalspecimens [RBCM,UBC].
Scleropogonneglectus(Bromley). Western; widespread indry,openforests and grasslandsof
southernBridsh Columbiaand prairie provinces. South toNew Mexico and Arizona. First
recordedinWilcox(1971). Additionalspecimens [RBCM,UBC,CNC].
Stenopogonrufibarbis(Bromley).Intermontane;grasslands,especiallymesicones,insouthern
British Columbia. Also in grasslands ofsouthern Albertaand Saskatchewan. South toAri-
zonaandCalifomia.FirstrecordedinBritishColumbiabyAdisoemarto(1967).Recordedon
the Great Plains as S. obscuriventris Loew by Adisoemarto (1967) (Wilcox 1971). Addi-
tionalspecimens [CNC,RBCM,UBC,PFC].
SubfamilyLaphriinae
LaphriaaimatusMcAtee.Cordilleran;dryconiferousforestsinthesouthernInteriorofBritish
Columbia and the Alberta mountains. First recorded by Adisoemarto (1967). Additional
specimens [CNC,RBCM].
Laphriafernaldi (Back). Cordilleran; widespread in the forests ofBritish Columbia and the
mountainsofwesternAlberta.FirstrecordedbyAdisoemarto(1967).Additionalspecimens
[CNC,RBCM,UBC,PFC].
PogonosomaridingsiCresson. Cordilleran; dry forests ofsouthernBritish Columbia(includ-
ing coastal and interiorareas) and the southernRocky Mountains ofAlberta. P. stricklandi
(Adisoemarto) named from Albertaby Adisoemarto (1967) isprobably conspecific. Addi-
tionalspecimens [CNC,RBCM,PFC].
SubfamilyAsilinae
Dicropaltummesae(Tucker).Western;widespreadingrasslandsofsouthernInteriorofBritish
Columbia north to the Chilcotin region. Southern Alberta; cited in Adisoemarto (1967) as
Asilusmesae (Tucker) and in Martin (1975) inNegasilus, this species ishere placed inDi-
cropaltum to conform to the proposed treatment ofFisher and Wilcox (1987). Additional
specimens [RBCM,UBC]
Ejferiaalbibarbis(Macquart). Southern; xeric grasslandsofextreme southernOkanaganVal-
ley,especiallywherethereissand [CNC,RBCM,UBC]. OnlyotherCanadianlocalitiesare
onthebeachesofLakeErie,Ontario[RBCM,CNC,UG].FirstrecordedinCannings(1989).
Ejferia benedicti (Bromley). Intermontane; grasslands ofthe southern Interior ofBritish Co-
lumbia,especiallyonsiltysoils.ThisisthespeciesthatAdisoemarto(1967),usingthegenus
Nerax, incorrectly called N. canus (Hine). In British Columbia first recorded by Cannings
(1989).Addifionalspecimens[CNC,RBCM,UBC,PFC,UG].Thereisnoevidencethatthe
speciesoccursinAlbertadespiteitsinclusioninAdisoemarto(1967)andStrickland(1946).
EjferiacouleiWilcox.Intermontane;grasslands,especiallymesicones,ofthesouthernInterior
ofBritish Columbianorth tothe Chilcotinregion. Described inWilcox (1966) fromWash-
ington.FirstrecordedinCannings(1989).Additionalspecimens[CNC,RBCM,UBC,UG].
26 J.Entomol.Soc.Brit.Columbia91,December, 1994
Ejferiastaminea(Williston).Western;mesicgrasslands insouthernInteriorofBritishColum-
bia. First reported in British Columbia by Cannings (1989). Additional records [CNC,
RBCM,UBC].
Machimus erythrocnemius (Hine). Southern; forests of British Columbia Interior [CNC,
RBCM].FirstrecordedinAdisoemarto(1967).Additionalrecords [RBCM].
ProctacanthusmilbertiiMacquart.Southern;grasslandsofsouthernInteriorofBritishColum-
bia. First recorded in British Columbia in Cannings (1989). Additional specimens [CNC,
RBCM,UBC,PFC].
Proctacanthus occidentalis Hine. Intermontane; grasslands ofthe southern InteriorofBritish
Columbia.FirstrecordedbyCannings(1989). Additional specimens [CNC,RBCM,UBC,
PFC].
Rhadiurgus variabilis (Zetterstedt). Holarctic; Boreal in Canada. Widespread in subalpine
forests throughout southern British Columbiaand the Rocky Mountains ofAlberta. Wide-
spreadintheBorealForestacrossCanadafromYukontoLabrador.TreatedasNigrasilusni-
tidifaciesHineinStoneera/.(1965);thenamesweresynonymizedinCannings(1993).First
reported inBritishColumbiaby Hine (1909) andby Cannings (1993) inYukonandNorth-
westTerritories.
ACKNOWLEDGEIMENTS
Iamgrateful toD.M. Wood(AgricultureCanada, Ottawa)forencouragementandtheloan
ofspecimensandtoE.M.Fisher(CaliforniaDepartmentofAgricultureandFood,Sacramento)
for identifications and advice. I also thank R Amaud, Jr. (California Academy ofSciences,
SanFrancisco),D.C. Darling (Royal OntarioMuseum,Toronto), B. Duncan (PacificForestry
Centre,Victoria), S.M. Marshall (University ofGuelph,Guelph),G.G.E. Scudder(University
ofBritishColumbia, Vancouver), and C.A. Triplehom (Ohio State University,Columbus)for
allowingmetoexaminespecimensintheircare.
REFERENCES
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