Ceroptera globosa, Papp, LÁsZLÓ, 2014

Papp, LÁsZLÓ, 2014, A Review Of The Old World Species Of Ceroptera Macquart, 1835 (Diptera, Sphaeroceridae), Acta Zoologica Academiae Scientiarum Hungaricae 60 (2), pp. 109-155 : 133-135

Ceroptera globosa sp. n.

(Figs 56–63)

Holotypemale ( BMSA): Namibia: ETOSHANAT. PARK, Renostervlei, 2 kmE, 19° 09’59” S 14°33’12” E, 26–27. xii. 1999, Marais, Mann & Newman. MMN27 – human feces – 2 ).

Paratypes: 3 males ( BMSA, 1 mHNHM): samedata . 1 male ( BMSA): ibid., W. CAPRIVIPark, B8 rest-stopat 17°46’56”S 24°16’31”E, 13–15. xii. 1999, MMN3 – elephant dung – 2 ). 1 male ( BMSA): ibid., W. CAPRIVI PARK, Nova. 5 km N, 18°09’56”S 21°44’31”E, 16–18. xii. 1999, MMN8 – elephant dung – 2 ).

Measurementsinmm: bodylength 1.48 (holotype), 1.37–1.86 (paratypes), wing length 1.48 (holotype), 1.38–1.74 (paratypes), wingwidth 0.65, 0.61–0.75.

Body dark brown with very short dark dense microtrichia. Anterior part of frons reddishinsomespecimens. Headsetaeshort. Therowofsetulaeonparafacialiacontinued to the middle of gena. Lower 1/3 of gena with a patch of dense grey microtrichia. Width of gena 0.15 mm, length of longitudinal axis of eye 0.20 mm, width of eye 0.16 mm. Probos- cis not large. 7–8 pairs of very short interfrontal setae. Dorsal length of antenna 0.14 mm, widthoffirstflagellomere 0.11 mm, i.e. definitelybroaderthanlong. Dorsalapicalsetaof pedicel 0.09 mm. Aristac. 0.45 mmlong, aristalcilia 0.015 –0.018 mmonly.

Thorax: 0 +1 pairofdorsocentralsetae, acrostichalsinc. 10 unarrangedrows, presuturalacrostichalonly 0.07–0.08 mmlong. 2 katepisternalsetae, posteriorone 0.10–0.11 mm, anterior one not much shorter.

Legsaredark, tarsireddishyellowbutalsoforetibiaissimilarinsomespecimens. Mid tibia with 2 strong anterodorsal setae at 14/35 and 25/35, strong dorsal seta at 30/35, and a shorteroneat 27/35, astrongposterodorsalsetaat 27/35. Ventralapicalseta 0.06 mmlong.

Wingmembranewhitish, veinsyellowishwhite, costaandRvein 1 lightyellow. Halter light yellow. Costal vein overruns apex of vein R 4+5 by 0.02–0.03 mm. Sub-basal seta ofcosta 0.10 mm, costalsetaeshort, only 0.02 mm. Secondcostalsection 0.54 mm, thirdsection 0.35 mm, index 1.54. Inter-crossvein section of M 1+2 0.20 mm, terminal section 0.56 mm, M-M crossvein 0.11 mm. Lower edge of discal cell slightly rounded but with a vein stub, distance of cell edge to wing margin 0.27 mm, of which 0.10 mm of the vein stub.

Syntergiteandpreabdominalscleriteslessreduced. Syntergite 0.35 mmlongand 0.56 mmbroad, c. anteriorhalfoftergite 1 portionmedio-dorsallydepigmentedanddesclerotised, posterior part of tergite 1 portion and medial part of tergite 2 portion slightly lighter thanlateralparts. Tergiteswithsparsesetaebutlateralmarginalsetaeof 0.13–0.14 mm; measurements: tergite 3 0.16 × 0.50, tergite 4 0.16 × 0.49, tergite 5 (slightly flattened) 0.14 × 0.51 mm. Sternites quadratic, sternite 2 (anterior half depigmented) 0.13 × 0.51, sternite 3 0.15 × 0.28, sternite 4 0.13 × 0.35 mm. Male sternite 5 large asymmetrical (Fig. 56), its right third fused to the right side sclerites. Synsternite (Fig. 57) with rather strong sternite 6 portion, which has a large anterior lobe on the left side. Genitalia large, as a consequence of largesynsternite.

Epandrium ( Fig. 60 ) large, globular, 0.13 mmdorsally.Analopeningnotlarge, ventrally stronglynarrowedbyapairofmediallydirectedsubtriangularprocesses, thoughapicesdo notmeetsagittally.Hypandriumveryshortasusual, withoutmedialapodeme. Subepandrial scleritelargewithstrongconnectiontocerci. Cercus (Figs 58, 60) comparativelylargeand broad. Surstylus (Fig. 58) 3-lobed: itconsistsofalongnotbroadandbaremediallobe, an longsetoseanteriorlobeandashortroundsetoselaterallobe. Postgonite (Figs 59, 63) very large, boat-shaped, apexnarrowhorizontal (!). Phallapodeme ( Fig. 63 ) shortrobustwithlong ventralprocessestopostgonites; itjoinsbasiphallusthroughapairofdarksclerites (itisparticularlyfarfrombasiphallus). Basiphallus ( Figs 61–62 ) peculiarwithlargeventrallydirected epiphallusandanapico-dorsal, dorsallydirectedprocess. Distiphallus ( Fig. 61 ) shortrobust withadorsallath-likescleriteandalargeventralsclerite, whichisadoublefork, amedialand alateralones. Ejaculatoryapodemedistinct, i.e. well- sclerotised.

Femaleunknown.

Etymology. Thespecificepithetinthenameofthenewspecies (Latin‘globosus’ = spherical) referstotheshapeofthemalegenitalia (fromoutside) ofthespecies.

Remark. C. globosa sp. n. is a member of the species- rich group of small- bodied Ceroptera flieswithasinglepairofprescutellardorsocentralsetae. However, itsmaleiseasilyidentifiablebythelargesynsterniteandepandrium, whichmakepostabdomensemi-globular. Detailsofthemalegenitaliaare alsocharacteristic.

Figs 56–59. Ceroptera globosa sp. n., male postabdomen and genitalia: 56 = sternite 5, ventral view (some right-side sclerites are covered in this view), 57 = synsternite 6–8, ventral view, 58 = leftsurstylusandcercus, broadest (sublateral) view (cercalsetaeomitted), 59 = post-

gonite, lateral view. Scales: 0.4 mm for Fig. 57, 0.2 mm for Fig. 56, 0.1 mm for Figs 58–59.

Figures

Figs 60–63. Ceropteraglobosa sp. n., malegenitalia: 60 = epandrium, cerciandsubepandrial sclerite, caudalview, 61 = phalluswithejaculatoryapodeme, lateralview, 62 = medialpart ofphallusinhighermagnification, lateralview, 63 = postgoniteandphallapodeme, lateral