Naarda palawana, 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 : 20-22

Naarda palawana sp. n.

( Figs 10 , 19 , 37 )

Holotype. m, Philippines, Palawan, BrookesPoint, UringUring , 23.VIII.1961, Noona DanExp., „caughtbylightofPetromax”, slideNo. RL 7992m (coll. ZMUC).

Paratypes. 1 m, 5 f, Philippines, Palawan, BrookesPoint, UringUring , 16., 17. and 18.VIII.1961, NoonaDanExp.; slideNo. RL8003f (coll. ZMUC, HNHM). Threespecimens lacktheirabdomen .

Indonesia: 1 m, 1 f, S.W. Celebes: PangeannearMaros. 2,000 ft. March 1938; J.P.A.Kalis. B.M.1938-397, slideNosBMNoct. 21816m, 21817f (coll. BMNH)

Taxonomy. Theshapeandthepatternofthewingsareclosesttothoseof N. maculifera, butconspicuousdifferencescanbeobserved (seetheDiagnosis).

Description. Wingspan 11–12 mm, lengthofforewing 5–5.5 mm. Oneofthesmallestspeciesofthegenus. Maleantennaconsistingofsomewhatthickenedjoints, withlong fasciculateciliaarisingfromventralcrest- likeridge; femaleantennawithconsiderably lessthickenedjoints, withoutprominentridgeandciliabutwithsparredscales. Frontal scale-hoodsmall, roundedtriangular, consistingofbroad, largescales. Malepalpsshort, twicelongerthandiameterofeye, gracile, slightlyupturneddistally, greyish- brownwith somewhitishhair-scales; thirdjointratherlongandacute. Femalepalpssomewhatlonger, thicker, moreporrect. Characteristicwingpatternfeatures: groundcolourdarkblackish-grey; allcrosslinesdissolvedindarkgroundcolourorhardlyvisible; subterminallinedark mousegrey, othertransverselinesdark, blackish, subterminalandpostmediallinesparallel, veryslightlysinuous. Reniformstigmaconspicuous, narrow, yellow, relativelysmall, withindistinctdarkedge, withoutdarkerinnerscales; orbicularstigmamissing; hindwing lighterthanforewing, mouse-grey, withouttracesoftransverselinesanddiscalspot.

Malegenitalia ( Fig. 10 ). Uncusverybroad, short, withhook- liketip. Scaphium straight, aslongasuncus. Tegumenslightlylongerthanvinculum. Saccusindistinct. Juxta Y-shaped, bifurcate; itsbranchesverynarrowanddirectedventro- laterally. Valvalshape uniquewithinthegenus, itsdorsalandventraledgesnearlyparallel, graduallytapering, sacculusdistallygraduallydilated, aslongasvalva; cucullusnotdifferentiated. Dorso-lateralcornerofsacculusextendingbeyongdorsaledgeofvalva. Costapresentonlyat thebasal 1/3 ofvalva, butbroad. Harpeabsentorentirelyfusedwithsacculus. Aedeagus verythick, slightlycurved, carinawithshort, straight, slightlysclerotisedprocess. Vesica globular, itsapicalhalfdenselyscobinatebyelongategrains, basalpartwithbroadand longdiverticulum, apicalpartofthisdiverticulumisarmedbyca. 10 small, rose-spine-like cornuti.

Femalegenitalia ( Fig. 19 ). Ovipositorlobesshort, angular. Apophysesanteriores onlyhalfaslongasapophysesposteriores. SternumA7 short, sinusabsent. Ductusbursaerelativelybroad, moderatelylong, colliculumlarge, entirelycoveringductusbursae. Corpusbursaeellipsoidal, itswholesurfacescobinatebytinygrains; posteriorquarter with broad and very long cervix bursae being as long as the 2/3 of corpus bursae. Cervix smooth, exceptforitsverybasalparthavingsimilarscobinateasincorpusbursae.

Diagnosis. Theexternalappearanceofthisnewspeciesissimilarto N. maculifera ( Staudinger, 1892), but N. palawana issmallerinsize, thelabialpalps areshorter, theforewingisbroader, thereniformstigmaissmallerandthe orbicularstigmaismissingwhileitispresentin N. maculifera.

Themalegenitaliaof N. palawana aresomewhatreminiscenttothoseof N. melinau Holloway, 2008 ( Fig. 12 ) butintheformertaxontheuncusismuch broaderandshorter, thecostalprocessof N. melinau isabsent, thedistalpart ofthesacculusismuchbroader, andthevesicaofaedeagushasmuchmore, smallercornutithaninthelatterspecies.

Thefemalegenitaliaofthisnewspeciesareverysimilartothoseof N. alternata TóthetRonkay, 2014, buttheapophysesanterioresareconsiderably longerin N. palawana , theductusbursaeisbroaderandentirelycoveredby thelargecolliculumwhichisabsentin N. alternata. Thefemalegenitaliaare also somewhat similar to those of N. bisignata Walker, 1866 ( Fig. 23 ), but the ductusbursaeisbroader, thecorpusbursaeisslightlynarrowerandscobinate incontrasttothesmoothcorpusbursaeof N. bisignata.

Etymology. ThisspeciesisthemosteasytodistinguishamongthosewhichwerecollectedattheislandofPalawan.

Distribution. ThesouthernpartofPalawanandsouthwesternSulawesi.

Figures

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).

Figs 25–39. Adults of newly described species: 25 = N. octogesima sp. n. male, 26 = N. laoana sp. n. male, 27 = N. mirabilis sp. n. male, 28 = N. octogesima sp. n. female, 29 = N. laoana sp. n. female, 30 = N. vicina sp. n. male, 31 = N. atrata sp. n. male, 32 = N. furcatella sp. n. male, 33 = N. vicina sp. n. male (photo: ZMUC), 34 = N. atrata sp. n. female, 35 = N. furcatella sp. n. female, 36 = N. plumbea sp. n. female, 37 = N. palawana sp. n. male, 38 = N. secreta sp. n. male,