Ceroptera setiscutellata, 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 : 146-150

publication ID	https://doi.org/ 10.5281/zenodo.12626496
persistent identifier	https://treatment.plazi.org/id/2D64A424-FFF1-FF83-C355-F9E3CBA7BAAE
treatment provided by	Felipe
scientific name	Ceroptera setiscutellata
status	sp. nov.

Treatment

Ceroptera setiscutellata sp. n.

( Figs 90–95 View Figs 90–95 )

Holotype, male ( HNHM): KENYA: TsavoWestNat. Park , 1988. IV. 17., Vojnits . Paratype, female ( HNHM): samedata. Theholotypeisseverelydamaged. Itsleftwingwasriveninalmostitswholelength .

The wing was removed, treated in hot water then it was floated on a small piece of cover

glass fixed in its natural position. Now it is in a good state between 2 pieces of cover glass,

and pinned through a small piece of thin card, which is glued to the lower cover glass undertheholotype.

Measurementsinmm: bodylength 2.60 (holotype), 2.12 (paratype), winglength 2.19 (holotype), 2.06 (paratype), wingwidth 0.94, (notmeasurable).

Thoraxandabdomendarkbrown, supra- alarpartofscutumandposteriorpartsof pleurareddish.

Headdarkbrown, anteriorpartoffronsreddish. Mouthedgestronglyprotruding, facialplatedeeplyconcavebutthereisnotashield-likeplateabovemouthmargin. Lunule largetriangular, butantennalbasesarenotwidelyseparated, facialcarinalowandnarrow. Setulaeonparafacialiasparse. 6 pairsofmedium-longinterfrontalsetaeplusanadditional medialpairaboveptilinum. Genahorizontallyhachured, ventrallywithalightgreyish, densely microtrichose spot above mouth edge. Width of gena 0.16 mm. Eyes strongly convex. Longitudinal axis of eye 0.34 mm, width of eye 0.30 mm. Antennal length 0.29 mm, ofwhich 0.14 mmforfirstflagellomere, 0.11 mmforpedicel. Firstflagellomerebroadly roundedventrally, 0.14 mmbroad. Antennareddishyellow, firstflagellomeregreyishventrally, apical setae of pedicel thick but not long, dorsal apical one 0.15 mm. Arista 0.69 mm longwith 0.03 mmlongcilia. Proboscisnotlarge.

Male scutellum on left and on right side with 6–6 additional setae, which are not completelypaired (partlybrokenonfemaleparatype). 0 + 2 pairsofdorsocentralsetae plusashortpaironsuture. Acrostichalsunarrangedshort, prescutellarpaircomparatively long, 0.15 mm. 2 katepisternalpairs, posteriorpair 0.25 mm, anteriorpair 0.15 mmlong.

Legsreddishyellow, femorabrownexceptbothapices. Midtibiawithastronganterodorsalsetaat 38/54, aposterodorsalat 44/54. Endoftarsomere 5 notW-shaped.

Wing membrane yellowish, veins ochre. Costal vein not overruning apex of R 4+5, 2 subbasal setae on costa only 0.09 mm. Second costal secton 0.95 mm, third section 0.50 mm, index 1.90. Rs 0.31 mm, inter-crossvein section of M 1+2 0.29 mm, terminal section 0.84 mm, M-M crossvein 0.13 mm. Distance of lower edge of discal cell to wing margin along vein M 3+4 0.46 mm with a 0.19 mm vein stub. Alula 0.09–0.10 mm broad with 0.05 mm long marginal cilia.

Preabdominalscleritesnotreduced, thoughsterniteslargerthantergites. Tergites with long marginal setae, longest 0.25 mm. Syntergite 0.35 mm long, 0.54 mm broad, T1 portiondesclerotisedonlyanteriorly, T2 portionnotdesclerotisedbutunpigmented. Meas- urementsofpreabdominalsclerites (widthsintheirnatural, slightlycurvedposition, 1 unit = 0.0125 mm): T3 21 × 40, T4 22 × 38, T5 16 × 33. Sternite 5 ( Fig. 92 View Figs 90–95 ) large, slightly lengthenedposteromedially. Thereisapairofdorsallycurved (i.e. perpendiculartoabdominal axis) lobes, whichembracearoundsclerite. Thisscleritearecoveredbydenseshortblack setulae ( Fig. 92 View Figs 90–95 ). Sternite 5 otherwisewithsparselongsetae.

Synsternitenotparticularlylarge. Sternite 6 portionofsynsterniteonleftventralmargin with 2 long setae. Apex of sternite 7 portion deeply dorsally curved. Sternite 8 portion only 0.20 mm long. Sternite 7 and 8 portions without long setae. Right side sclerites are not large.

Epandriumwidelyopenventrally. Cercus ( Fig. 90 View Figs 90–95 ) largebroad, fillinganalfissure, ventrally broadly rounded without a ventral process but with a very long (0.15 mm) seta there. Cercisagittallyfusedwithsubepandrialsclerite, whichisnotonlybroadbuthigh. Hypandrium ( Fig. 91 View Figs 90–95 ) distinct, 0.17 mm broad with a short and broad medial part (“apodeme”). Surstylus ( Fig. 94 View Figs 90–95 ) large, broadbasedandlongwithananteriorventralblunproc- essandwithnumerousstrongsetae. Surstylusnotdividedtotwoparts. Basiphallus ( Fig. 95 View Figs 90–95 ) in 2 parts: acomparativelyshortcylindricalanteriorpartandacap- likeposteriorpart embracingbaseofthecylindricalpart. Distiphalluslong, slightlycurvedwithmembra- 95, 0.1 mm for Fig. 93–94 View Figs 90–95 .

Fig. 98. Ceroptera nigra sp. n., paratype male, head.

nous apex ( Fig. 95 View Figs 90–95 ). Postgonite ( Fig. 93 View Figs 90–95 ) long with curved apical part, apical part perpendicularlycurvedbutapexblunt.

Femalepreabdomensimilartothatofthemale, thoughsternitesnotlargerthan tergites, T2 portionnotdesclerotisedbutunpigmented. Postabdominalscleritesreduced bothasregardsextentandsclerotisation. Cercusonly 0.07 mmlongand 0.024 mmbroad with 3 comparatively long (0.11 mm, 0.09 mm, 0.06 mm) setae, with a 0.12 mm long dorsal subapicalseta, 2 lateralsetaeof 0.05 and 0.03 mm, andwithsomeshortersetae. Sperma- thecaeparticularlydark, singleonelongish (0.094 × 0.045 mm), pairedspermathecaerather pyriform, 0.085 × 0.06 mm, sclerotised ducts very short, only 0.015 mm and 0.012 mm.

Etymology. The specific epithet in the name of this new species refers to the additional setae on its scutellum, a unique feature in the Old World Ceroptera spp.

Remark. C. setiscutellata sp. n. isapeculiarspeciessinceitsscutellumis withseveral (c. 6 pairs) ofadditionaldiscalandlateralscutellarsetae. Otherwiseitbelongstothespecieswith 2(3) dorsocentralpairs. Althoughitsanterodorsal seta in the basal half of mid tibia is characteristic, I have not found its closestrelative: itsmalesternite 5 isalsopeculiarbeinglargewithapeculiar medio-caudalstructure ( Fig. 92 View Figs 90–95 ).