Naarda vicina, Tóth & Ronkay, 2015

Tóth, Balázs & Ronkay, László, 2015, Revision Of The Palaearctic And Oriental Species Of The Genus Naarda (Lepidoptera: Erebidae, Hypeninae) Part 2. Description Of Ten New Species From Asia, Acta Zoologica Academiae Scientiarum Hungaricae 61 (1), pp. 3-23 : 12-13

Naarda vicina sp. n.

( Figs 4 , 15 , 30, 33)

Holotype. m, Philippines, Palawan, Mantalingajan, Tagembung , 1150 m, 18.IX.1961, NoonaDanExp., „caughtbyMercury- light, 18.30-06.00”, slideNo. RL 7989m (coll. ZMUC)

Paratypes. 6 m, 1 f, Philippines, Palawan, Mantalingajan, Tagembung, 1150 m, 17.IX. and 18.IX.1961, Noona Dan Exp. ; slide Nos RL 7988m, RL8000f (coll. ZMUC: 5 m, 1 f; and HNHM: 1 m) .

Taxonomy. Theshapeandcolourationoftheforewingareverysimilar to those of N. fuscicosta ( Hampson, 1891) and also similar to those of N. acolutha Holloway, 2008 and N. lancanga DengetHan, 2011 but, accordingtothe malegenitalia, N. vicina isamemberofadistinctlineagerathercloserto N. glauculalis .

Description. Wingspan 19–21 mm, lengthofforewing 9–10 mm. Themaleantenna lessspecialised, moreorlessfiliformwithshortfasciculateciliaandflatdorsalscales; femaleantennafiliform, verysparselyciliate. Dorsalscale-hoodochreous- brown, moreor lessroundedtriangular, coveringmostpartsofvertex. Ocelliverysmall, black. Palpiof bothsexessimilar, longandporrect, withratherlongventralhair-scalesandmoreorless lanceolatesecondjoint; thirdjointrelativelylongandpointed. Labialpalpsmorethan threetimeslongerthandiameterofeye. Characteristicwingpatternfeatures: paleochreous- brown (buff) forewinggroundcolourwithdensetobacco- brownsuffusionatcostal area, alongoutermarginandatpostmedialline; crosslinespresentbutdiffuse, subterminal fuscous, diffuse, sinuous; terminallinearowoffineblack(ish) dots. Orbicularhardlyvisible, reniformmarkedwithochreousscalesandtwofine, sometimesobsolescentbrown dots. Hindwingpatternvariablydistinct, usuallyobsolescent, tobacco- brownsuffusion usuallyintense, discalspotsandsinuous, ochreous- brownlinesinmarginalarearegularly well- visible; terminallinearowofdarkdots, ciliaasgroundcolour, finelyspottedwith darkerbrown.

Malegenitalia ( Fig. 4 ). Uncuslong, curvedatitsbase. Scaphiummuchshorterthan uncus, curvedagainstit. Tegumenlongerthanvinculum. Saccusnarrow, relativelyshort, itstiprounded. Juxtalarge, rounded, isodiametric. Valvalong, tapering. Costaconvex, well developed, strong, itstipacutelypointed, extendingintocucullusandfusedwithitsdorsal part. Sacculusrelativelybroad, short; itsdistalhalfdenselysetose. Harpepresentdistally fromsacculus, itsbasenearlyasbroadasvalva, erectprocesslarge, abruptlytaperingbut terminallyrounded. Aedeagusstraight, thick, carinawithrelativelyshort, broadprocess scobinatesparselybysmallteeth. Vesicaglobular, sparselyscobinatebytinygrains.

Femalegenitalia ( Fig. 15 ). Ovipositorlobesrectangular. Apophysesnarrow; length ofapophysesposterioresca 1.3 timesthatofapophysesanteriores. SternumA7 withtwo roundedlobes. Sinusverynarrow. Ductusbursaelong, dividedtobroad, sclerotisedposteriorpartwithcolliculumandnarrow, membraneousproximalpart. Corpusbursaequite small, ovoid, withbroadbutshortcervixbursaeattachednexttothemouthofductusbursae. Surfaceofcorpusbursaesmooth, thatofcervixscobinatebytinygranules.

Diagnosis. Thewingpatternof N. vicina isconfusinglysimilartothatof N. fuscicosta , althoughthefiliformantennaof N. vicina andtheconspicuously pectinateantennaof N. fuscicosta caneasilydistinguishthemales. Naardalancanga hasalsoverysimilarpattern, butlacksthedarkareaclosetodorsum, whichispresentin N. vicina . Moreover, theinnermostfasciaonthehindwing of N. vicina issinuous, whilein N. lancanga itisratherstraight. Thenewspeciesdiffersexternallyfrom N. acolutha bytheabsenceofthedarkfieldatposteriorsectionoftermen, andbytheconspicuouslylighterterminalfieldofthe hindwing.

Themalegenitaliaarerathersimilartothoseof N. glauculalis ( Fig. 11 ) but thenewspecieshasthescaphiumshorter, thejuxtabigger, thesaccuslonger, thevalvalongerwithmuchmoreacutetip, thedistalpartofcostaslightlyless developed, thesacculusbroaderandshorter, withprominentdistalsetose field, andtheaedeagusisthickerandstraighterthanin N. glauculalis .

Thefemalegenitaliaof N. vicina , incomparisonwiththoseof N. barlowi Holloway, 2008 ( Fig. 24 ) haveshorterapophyses, shorterandmuchnarrower ductusbursae, andmuchsmallercorpusbursae.

Etymology. Thespecificnamereferstothehighexternalsimilarityofthenewspecies tootherwisenotcloselyrelatedcongeners ( vicina = neighbour).

Distribution. AllknownspecimenswerecaughtatthesouthernpartofPalawanIsland, Philippines.

Figures

Figs 1–6. Male genitalia of newly described Naarda species: 1 = N. octogesima sp. n. (RL7903m), 2 = N. laoana sp. n. (TB554m), 3 = N. mirabilis sp. n. (RL7920m), 4 = N. vicina sp. n. (clasping app.: RL7988m; aedeagus: RL7989m), 5 = N. atrata sp. n. (TB392m), 6 = N. furcatella sp. n. (clasping app.: TB447m; aedeagus: TB419m).

Figs 13–18. Female genitalia of newly described species: 13 = N. octogesima sp. n. (TB399f), 14 = N. laoana sp. n. (TB556f), 15 = N. vicina sp. n. (RL8000f), 16 = N. atrata sp. n. (TB448f), 17 = N. plumbea sp. n. (RL7917f), 18 = N. furcatella sp. n. (TB422f).

Figs 7–12. Male genitalia of newly and formerly described Naarda species: 7 = N. blepharota Strand (RL10745m), 8 = N. secreta sp. n. (RL155TFRIm), 9 = N. huettleri sp. n. (TB571m), 10 = N. palawana sp. n. (RL7992m), 11 = N. glauculalis Hampson (RL7681m), 12 = N. melinau Hol- loway (RL7977m).

Figs 19–24. Female genitalia of newly and formerly described species: 19 = N. palawana sp. n. (RL8003f), 20 = N. ineffectalis sensu Holloway (RL10784f), 21 = N. ineffectalis sensu Hol- loway (RL7689f), 22 = N. notata Hampson (RL7690f), 23 = N. bisignata Walker (OUMNH 433-1964), 24 = N. barlowi Holloway (TB437f).