Revision of the Exechia parva group (Diptera: Mycetophilidae) Author Lindemann, Jon Peder https://orcid.org/0000-0001-6001-7910 UiT - The Arctic University of Norway, Tromso, Norway jon.p.lindemann@uit.no Author Soli, Geir https://orcid.org/0000-0001-5301-6995 Natural History Museum, Oslo, Norway geir.soli@nhm.uio.no Author Kjaerandsen, Jostein https://orcid.org/0000-0002-3104-073X UiT - The Arctic University of Norway, Tromso, Norway jostein.kjarandsen@uit.no text Biodiversity Data Journal 2021 2021-09-24 9 67134 67134 http://dx.doi.org/10.3897/BDJ.9.e67134 journal article http://dx.doi.org/10.3897/BDJ.9.e67134 1314-2828-9-e67134 A1151C0727B74F31BC4B6809DA6F87CD 54EEB1B3D94E5239B847CC1AD9587A36 Exechia zuluensis Lindemann sp. n. Materials Type status: Holotype . Occurrence : catalogNumber: TSZD-JKJ-107186 ; recordedBy: M. Mostovski ; individualCount: 1 ; sex: male ; lifeStage: adult ; preparations: Pinned , with genitalia in glycerine in separate microvial; Location : country: South Africa ; stateProvince: KwaZulu-Natal ; municipality: Pietermaritzburg ; locality: Karkloof Nat. Res. ; verbatimElevation: 1325 m ; decimalLatitude: -29.3169 ; decimalLongitude: 30.2514 ; Event : samplingProtocol: Malaise trap ; eventDate: 2005-08-27 ; habitat: mistbelt forest; Record Level: institutionCode: TMU Description Male: Body length 4.1 mm. Wing length 3.4 mm. Colouration (Dry specimen). Head, face and clypeus dark brown; labellum and palpus yellow. Antenna with scape and pedicel yellow; flagellum brown, first segment with yellow base. Thorax with scutum dark brown, lateral margin broadly yellow; lateral sclerites brown; propleura pale brown; halteres whitish-yellow. Legs whitish-yellow. Abdomen dark brown, tergites II-III with lateroventral yellow area. Terminalia pale brown. Head . Frons and vertex covered with pale setae. Clypeus covered with pale brown setae. Antenna long, 2.3 times as long as length from vertex to ventral margin of clypeus; flagellomeres slightly longer than broad, with sixth flagellomere 1.1 times as long as wide. Thorax . Scutum covered with short pale brown setae. Legs . Fore leg with tibia 0.89 times as long as first tarsomere. Mid-tibia with 26 anterior, 4 posterodorsal, 10 posterior and 3 posteroventral bristles. Hind tibia with 12 anterodorsal, 6 posterodorsal and 5 posterior bristles. Wings . Vein r-m 2.8 times longer than stem of M-fork. Abdomen. Tergites covered with pale brown setae. Terminalia (Fig. 41 ). Each part of divided tergite IX apically with about 7 setae, apical seta stout. Gonocoxites with setae on apicoventral margin elongate, reaching as far as, or slightly shorter than level of GL apex (Fig. 41 a ). Each GL apex with row of 4 elongate setae, somewhat splayed out (Fig. 41 a ). Aedaegal guides indistinct or reduced. Hypandrium covered with about 12 setae, with apical pair elongate, almost reaching level of GL apex (Fig. 41 a , b ). Hypandrial lobe with each branch evenly tapered, apically narrow, apex rounded (Fig. 41 a ). Gonostylus (Fig. 41 c ) with DB elongate and acuminate, apex spathulate; about 3.3 times longer than broad; evenly covered with setae on dorsal side, except on apical sixth. VB small and round; basally with short seta, otherwise bare. IB apically acute, with 1 seta close to apex and pair of setae about one-third from apex. MB slightly curved interiorly with apex acute; small seta located one-sixth from apex. Female: Unknown. Diagnosis Distinguished from E. arcuata in having the gonocoxal lobe straight (Fig. 41 a , b ); from other species in the E. parva group in having the dorsal gonostylus branch 3.3 times longer than broad with apex spathulate (Fig. 41 c ), in combination with the internal gonostylus branch with 1 seta close to the apex (Fig. 41 c ), the gonocoxal lobes with apico-internal margin straight (Fig. 41 a ) and the apical hypandrial setae reaching almost the level of the gonocoxal lobe apex (Fig. 41 a ). Etymology From KwaZulu-Natal , the Province where the holotype was collected, with Latin suffix - ensis , belonging to. Distribution Afrotropical, South Africa (Fig. 4 ) Biology Collected in mistbelt forest (1325 m a.s.l.).