Scythris richteri sp n., a new micromoth from Croatia (Lepidoptera: Scythrididae)

2013·1.4 MB·English

by  Bengt A Bengtsson

Scythris richterisp. n., a new micromoth from Croatia (Lepidoptera:
Scythrididae)
BengtA.Bengtsson
Abstract . A newspecies ofthe microlepidopterousfamilyScythrididae, Scythris richterisp. n., is described. The type
localityissituatedinthesouthofVelebitinCroatia.ThenewspeciesisexternallysimilartoScythristaygeticolaScholtz,1997
butlacksthepalespotattheapex.ItmayalsobeconfusedwithScythrishornigii(Zeiler,1855)butdiffersexternallybythe
whitishstreakintheforewingnotreachingtheapexbutendingatthetermentwomillimetresbeforethetipofwing.Themale
genitaliadiffer,forinstance,byastraightrowoflarge,stoutbristlesontheuncus.ThetypeserieswasfoundinAugustatan
elevationofca.1200m,butthebiologyisotherwiseunknown.
Samenvatting.Scythrisrichterisp.n.,eennieuwekleinevlinderuitKroatië(Lepidoptera:Scythrididae)
EennieuwekleinevlinderuitdefamilieScythrididaewordtbeschreven:Scythrisrichterisp.n.Detype-localiteitbevindtzichin
Zuid-VelebitinKroatië.DenieuwesoortlijktuiterlijkopScythristaygeticolaScholtz,1997maarmistdeblekevlekbijdeapex.
DesoortkanookverwardwordenmetScythrishornigi(Zeiler, 1855)maarisdaaruiterlijkvanonderscheidendoordewitte
streepindevoorvleugeldieniettotdeapexreikt,maareindigtaandebuitenrand,2mmvóórdevleugeltip.Demannelijke
genitaliaverschilleno.a.dooreenrechtelijngrote,stevigedoornsopdeuncus.Detype-seriewerdinaugustusgevondenopca.
1200mhoogte.Voorderestisvandebiologienietsbekend.
Résumé.Scythrisrichterisp.n.,unmicrolépidoptèrenouveaudeCroatie(Lepidoptera:Scythrididae)
UnenouvelleespècedemicrolépidoptèredelafamiliedesScythrididaeestdécrite:Scythrisrichterisp.n. Lalocalitétypese
trouvedansIesudduVelebit,enCroatie.Extérieurement,lanouvelleespèceressemblebeaucoupScythristaygeticolaScholtz,
1997maisellenemontrepasdetachepale présdel'apex. Elle pourraitaussiêtreconfondueavecScythrishornigi(Zeiler,
1855), maispeutenêtredistinguéeparlastrieblanchedel'aileantérieurequin'atteintpasl'apex, maisquis'arrête2mm
avantIebordexterne.Lesgenitaliamalesdifférentp.e.parunerangéedroitedegrandesfortesépinessurl'uncus.Lasériedes
typesfutrécoltéenaoütaunealtitudede1200m,etc'esttoutcequ'onconnaTtdelabiologie.
Keywords:Scythrididae-Scythris-Croatia-taxonomy-faunistics.
BengtA.Bengtsson,Lokeg.3,S-38693Farjestaden,[email protected]
Introduction The photographs (about 10) were processed by the
software Helicon Focus Version 4.2.8 (10871). The
TheEuropeanfaunaofthemicrolepidopterousfamily genitalia illustrationswereproduced inasimilarmanner
Scythrididae is comparatively well explored and only a withmulti-layertechnique,usingthesamecameraanda
few new species have been found and described after Euromex EB compound Microscope with a plan lens
the review of the West Palaearctic Scythrididae by 5/0.18.
Bengtsson (1997). An interesting exception from this is
the number of new species that have been described
fromthemosteasterlypartsofEuropeinorclosetothe
Ural Mountains,andfrom NorthAfricaandTurkey,from
where more than twenty new species have been
described (e.g. Nupponen 1999, 2003, 2004, 2005a,
2005b, 2007, 2009, 2010; Nupponen et al. 2003; and
Nupponenetal.2000).
During2011OleKarsholtatZMUC,Copenhagen,sent
meadamagedscythrididspecimen,collectedbyL.Srnka,
with itsgenitalia in a plastictube. Afterremountingthe
genitalia I observed that the specimen represented an
undescribedspecies.IcorrespondedwithIgnacRichterin
Mala'Causa inSlovakia,whohadconsultedOleKarsholt Fig.1-ScythrisrichteriBengtssonsp.n.(holotype).
aboutthistaxon, and I wasfortunateto receive further
specimens from the same collecting area in Velebit, ScythrisrichteriBengtssonsp.n.
Croatia, regrettably only males. The female is thus still Holotype: male; CROATIA, South Velebit, 26.8.2011,
unknown. Lgt. Ignac Richter (white lable); Gen. prep. no 1978X,
Scythris richteri, B A Bengtsson (yellow label);
Materialand methods HOLOTYPUSScythrisrichteriSBENGTSSON(red label).-
Incoll.ZMUC[Copenhagen],
Thegenitaliaweremountedaccordingtothemethod 16 paratypes: 2 males; data as in the holotype.
describedbyRobinson(1976)andBengtsson(1997).The Genitalia of one male on slide 17571 (in glycerin in a
picture of the imago was produced by a multi-layer plastictubeontheneedle).-Incoll.ZMUC.
techniqueusingaCanonEOS350Dwitha100mmCanon
Macro lens and artificial circular light-tube illumination.
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1male(specimenverydamaged);dataasinholotype a pale, diffuse spot is present, and in the genitalia the
but17.8.2007,Igt.C.Srnka.GenitaliaonslidebAb1971X. uncusisarmed with strongspinesfromtwo round pads
-Incoll.ZMUC. and notfrom a straight, transverse row as in S. richteri
13 males; CROATIA, South Velebit (12 km Gracac) sp.n.Thegnathosandthevalvaeareofdissimilarshape,
1200 m, 11.8.2010, Igt. C. SRNKA. - In coll. ZMUC, coll. aswell.Scythrishornigii(Zeiler, 1855)alsohasthesame
Richterandcoll.BAB. size and coloration but the longitudinal streak runs all
thewayfromthewing basetothewingtip, while in S.
Diagnosis: Scythris richteri sp. n. resembles some richteri sp. n. the streak ends about two millimetres
otherscythrididswithbrownforewingandalongitudinal, before apex. The Moroccan species Scythris ciliatella
pale streak in fold towards apex. Scythris taygeticola Zerny, 1936 is smaller and has lighter hindwing.
Scholtz,1997hasaboutthesamewingspanbutatthetip
Fig.2-A.MalegenitaliaofS.
richteriBengtssonsp.n.
Holotype.-B.Sternum8(to
theleft)andtergum8(tothe
right).
Description of imago (Fig. 1): Wingspan 14-17 mm. dorsallygreyishwithslightlypalerhindmargins,ventrally
Headgreywithfaintbrowntinge. Labialpalpratherthin, cream-coloured;analbrushdarkgreyishbeige.
curved upwards, second and third segment as long as
eye diameter; basal segment white; second and third Malegenitalia(Figs.2A-B):Symmetrical.Uncusasub-
segment whitish on inner side, on outer side gradually squareplatewithamedioposteriorcleftandatransverse
darker olive brown apically, third segment almost rowof,straightstiffbristlesatposteriormargindirected
entirelydarkolive brown on outersurface. Antenna 0.6 anteriorly. Gnathos two slightly bent, distally widening
times as long as forewing, dark brownish dorsally, bandsfused subapically,distalextension attipshallowly
ventrally whitish along a thin line to about middle of bifurcate with two unequal points, lower one longer,
flagellum; cilia short, c. onethird offlagellum diameter; slender and curved at tip. Valvae diverging, each one
scape underneath white. Collar cream white but in slightly bent and somewhat constricted in middle, apex
middlegreyish.Tegulacontrastinglycoloured, whitish in round and with short, ventral "beak". Phallus almost
inner half, dark brownish in outer part. Thoraxfuscous, straightorslightlycurved,insignificantlytaperedapically,
laterallyandposteriorlyslightlypaler.Forewingbrownish tip obliquely truncate. Vincular extension (saccus) sub-
with a distinct, whitish streakfrom wingbaseto middle rectangular with longitudinal reinforcement. Sternum 8
of termen, slightly bent and evenly broad; costa from semi-circular with pair of diverging, posterior "horns";
middle with a thin, cream-coloured streak, apically anterior margin of S8 concave. Tergum 8 a flat,
widening; costal fringes cream-coloured, fringes along subtrapezoidplatewithroundlateralcorners.
termen fuscous, somewhat darkening towards tornus. Femalegenitalia:Unknown.
Forewingundersidedarkfuscous,frommiddleofcostaa
cream line of same shape and coloration as on dorsal Distribution: Only recorded from the type locality,
side. Hindwing fuscous, width at one third from base VelebitinCroatia.
about 0.8 of forewing; fringes pale fuscous. Foreleg
fuscous externally, internally pale greyish or beige. Bionomics:Unknown.ImagineswerefoundinAugust.
Midleg coloration as in foreleg but more pale greyish
scalesonoutersurface. Hindlegdirtywhitish,outerspur Etymology:Scythrisrichterisp.n.isnamedafterIgnac
of each pair fuscous, inner spurs dirty whitish; tarsal Richter, the collector of the holotype and of some
segmentssuffusedgreyish brownandwhitish.Abdomen paratypes.
Phegea41(1)01.iii.2013:8 ISSN0771-5277
Acknowledgements also to L'. Srnka for providing several paratypes. I also
thank Ole Karsholt who forwarded to me the first
I am deeply indebted to Ing. Ignac Richter who specimenfordetermination andatwhichoccasion Iwas
providedthetypeseriesoftheundescribedspecies,and abletoconfirmthestatusofthenewtaxon.
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