Naarda octogesima Tóth & Ronkay 2015, sp. n.
Creators: name: Tóth, Balázs
name: Ronkay, László
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Noctuidae
Naarda
Naarda octogesima

description: Naarda octogesima sp. n.
(Figs 1, 13, 25, 28)
Holotype. m, Thailand: Prov. Nan, DoiPhuKhaNP, betweenPuaandBoLuang, 1350 m, 101 05’E, 19 12’N, 3.XI.2002, leg. B. Herczig & G. Ronkay; slide No. RL 7903m (coll. HNHM).
Paratype. Thailand: 1 f, Prov. ChiangMai, 1600m, betweenFangandNorLae, 99°09’E, 20°02’N, 28.10.2002. leg. B. Herczig & G. Ronkay; slide No. TB 399f (coll. HNHM).
Taxonomy. Accordingtothemalegenitalia, N. octogesima and N. laoana spp. n. representadistinctlineage.
Description. Wingspan 21–24 mm, lengthofforewing 11–12 mm. Antennaefiliform, ciliate, inmaleciliaarrangedintofourtransversearrays, lengthofciliatwicediameterof flagellum; infemaleoneciliumpersegment, shorterthandiameterofflagellum. Length oflabialpalps 2.5 timesthediameterofeyeinmale, threetimesinfemale, inbothsexes tipnotlight, dorsalscaleslong, dorsaledgestronglyconvex. Scale-hoodofvertexbroadbased, relativelylong, itstipbifurcate. Profemoraand – tibiaeinmaleslightlythickened, hairy. Characteristicwingpatternfeatures: costanotconcaveinmale; groundcolourgreyishbrowninmale, darkerinfemale; subterminallinegreyishwithtwoprojectionsinwards inmale, moresinuousinfemale; postmediallineparalleltothesubterminalbutslightly moresinuouswithanangulationinwardsnearlytouchingreniformspotinmale; medial linebroad, dark; antemediallinepresent; reniformstigmabig, paleyellow, 8-shaped, with greyishdotsinthetopandbottomhalves, orbicularstigmarelativelybig, paleyellow. Hindwingslightlypalerthanforewing, withthreetransverselines, basalonebroaderand moreprominentinmale.
Malegenitalia (Fig. 1). Uncusrelativelylong, curved, bulgedventrallyatbasalhalf, itstippointed. Scaphiumaslongasuncus; tegumenlongerthanvinculum, thelatterbeingverystrong. Saccusbroad-based, long, wide, itstiprounded. Baseoftranstillavery broad. Shapeofjuxtalikeashieldorcoat- of-arms, withasmallnotchatitsventro- medial edge. Valvabroad-based, abruptlytapering. Cucullusfreeonlyatitstip, verynarrow. Sacculusverywell- developed, basallynarrow, distallydilated, itsdistalendtwicebroader thanbase. Harpearelativelybroad-basedprocess, itstiprounded, itsbasefusedwiththe ventro- lateralcornerofthesacculus. Costaheavilydeveloped, endinginlong, bifurcate process, ventralextensioncurvedventrallybeyondtheharpe, dorsalextensiontongueshaped. Aedeagusstraight, verythickandshort; vesicaglobular, twicelongerthanaedeagus, itsdistalthirdampleandscobinate, withanultimatelylong, strongcornutusemergingclosetocarina, being 2.5 timeslongerthanaedeagus.
Femalegenitalia (Fig. 13). Ovipositorlobesrectangular. Apophysesquitebroad; apophysesposterioresca 1.4 timeslongerthanapophysesanteriores. LobesofsternumA7 rounded. Basalhalfofsinusverynarrow, itsposteriorpartbroad. SternumA7 withlarge, rounded, broad-based, sclerotisedplate. Ductusbursaebroadandveryshort, strongly sclerotised, connectedtocorpusbursaeratherproximallyatdorsalside; withrathertubular, heavilysclerotised, terminallyslightlycurvedanteriorpocket. Corpusbursaeglobular, denselyscobinate; appendixbursaeshortlyconical.
Diagnosis. Theclosestrelativeofthisnewspeciesis N. laoana sp. n. The differentialexternalmorphologicalfeaturesof N. octogesima areasfollows: the ground-colourofwingsisdarkerin N. octogesima thanin N. laoana, thebasal areaofwingsislessochreoussuffused, the 8-shapedreniformstigmaismore prominent, moredistinctlypaleyellow, andtheorbicularstigmaisalsomore conspicuous. Inthemalegenitalia, theventralprocessofvinculumisstronger, thickerin N. octogesima, thedorsaledgeofcostaisslightlycurved, thesubapicalneckisconsiderablythinner, andthebifurcateprocessissmallerwith shorterextensions. Thehugecornutusintheaedeagusisslightlylongerthan in N. laoana, itsdistalhalfsinuousandtaperingintoacutetip (notbifurcate asin N. laoana); andthevesicahaslargedistalscobinateareaincontrastto N. laoana. Inthefemalegenitaliatheductusbursaeismuchbroader, thecorpus bursaeismorespherical, itssurfaceismorescobinate, andtheappendixof ductusbursaeislongerthanthoseof N. laoana.
Themalegenitaliaof N. octogesima aresomewhatsimilartothoseof N. abnormalis (Hampson, 1912), buttheuncusandthescaphiumarenarrower, longerandmorecurvedinthenewspecies, thenotchofthejuxtaissmaller, thesaccusismuchmoreelongate, thecostaismuchmoredeveloped, thedistalpartofsacculusismuchbroader, buttheharpeissmallerthanin N. abnormalis. Thetwospeciesareratherdissimilarexternallyas N. octogesima is considerablylargerinsize, havingconvexcostaofthemaleforewing, much strongercrosslinesonbothwings, conspicuouslargeandyellowreniform stigma, andthehindwingismuchdarkerthanin N. abnormalis.
Etymology. Thespecificnamereferstotheunique 8-shapedreniformstigma.
Distribution. NorthernThailand.
description: Published as part of 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, pp. 3-23 in Acta Zoologica Academiae Scientiarum Hungaricae 61 (1) on pages 4-5, DOI: 10.17109/AZH.61.1.3.2015, http://zenodo.org/record/5734508