Exechia pararepanda Kallweit, 1995

Lindemann, Jon Peder, Soli, Geir & Kjaerandsen, Jostein, 2021, Revision of the Exechia parva group (Diptera: Mycetophilidae), Biodiversity Data Journal 9, pp. 67134-67134 : 67134

Exechia pararepanda Kallweit, 1995

Exechia pararepanda Kallweit in Kallweit & Martens, 1995: 243 ♂ ( Kallweit and Martens 1995)

Materials

Type status: Other material. Occurrence: catalogNumber: TSZD-JKJ-111555 ; recordedBy: A. Nakanishi; individualCount: 1; sex: male; lifeStage: adult; preparations: Pinned, with genitalia in glycerine in separate microvial; Location: country: Nepal; stateProvince: Gandaki Pradesh ; county: Myagdi District ; locality: Mudi , Dobang Kharka ; verbatimElevation: 2400 m; decimalLatitude: 28.6000; decimalLongitude: 83.4000; Event : eventDate: 1971-10-20; Record Level: institutionCode: KUEC Type status: Other material. Occurrence: catalogNumber: TSZD-JKJ-111560 ; recordedBy: A. Nakanishi; individualCount: 1; sex: male; lifeStage: adult; preparations: Pinned, with genitalia in glycerine in separate microvial; Location: country: Nepal; stateProvince: Gandaki Pradesh ; county: Myagdi District ; locality: Mudi , Dobang Kharka ; verbatimElevation: 2400 m; decimalLatitude: 28.6000; decimalLongitude: 83.4000; Event : eventDate: 1971-10-25 / 1971-10-26; Record Level: institutionCode: KUEC Type status: Other material. Occurrence: catalogNumber: TSZD-JKJ-111558 ; recordedBy: J. Emoto; individualCount: 1; sex: male; lifeStage: adult; preparations: Pinned , with genitalia in glycerine in separate microvial; Location : country: Nepal; stateProvince: Province No. 1; county: Taplejung District ; locality: Topke Gola ; verbatimElevation: 3700 m; decimalLatitude: 27.6333; decimalLongitude: 87.5833; Event: eventDate: 1972-07-08; Record Level: institutionCode: KUEC Type status: Other material. Occurrence: catalogNumber: TSZD-JKJ-111559 ; recordedBy: J. Emoto; individualCount: 1; sex: male; lifeStage: adult; preparations: Pinned , with genitalia in glycerine in separate microvial; Location : country: Nepal; stateProvince: Province No. 1; county: Taplejung District ; locality: Thurukpa - Topke Gola ; verbatimElevation: 2600 m; decimalLatitude: 27.6333; decimalLongitude: 87.5833; Event: eventDate: 1972-06-12; Record Level: institutionCode: TMU Type status: Other material. Occurrence: catalogNumber: TSZD-JKJ-111557 ; individualCount: 1; sex: male; lifeStage: adult; preparations: Pinned, with genitalia in glycerine in separate microvial; Location: country: Nepal; stateProvince: Province No. 1; county: Sankhuwasabha District ; locality: Thudam ; verbatimElevation: 3500 m; decimalLatitude: 27.7500; decimalLongitude: 87.5333; Event: samplingProtocol: Malaise Trap; eventDate: 1974-07-01; Record Level: institutionCode: KUEC Type status: Other material. Occurrence: catalogNumber: TSZD-JKJ-111556 ; recordedBy: T. Saigusa; individualCount: 1; sex: male; lifeStage: adult; preparations: Pinned , with genitalia in glycerine in separate microvial; Location : country: Bhutan; locality: Pele La ; verbatimElevation: 3400 m; Event: eventDate: 1993-08-06; Record Level: institutionCode: KUEC

Description

Male (n = 6): Body length (n = 3) 2.5-3.2 mm. Wing length (n = 3) 2.1-2.7 mm. Colouration (Dry specimen). Head, face and clypeus dark brown; labellum and palpus yellow. Antenna with scape and pedicel yellow; flagellum brown to dark brown, basal half of first flagellomere yellow. Scutum brown to dark brown, with anterolateral margin yellow; lateral sclerites brown to dark brown; propleura pale brown to brown; halteres whitish-yellow to yellow. Legs whitish-yellow to yellow. Abdomen brown to dark brown. Terminalia yellow to pale brown. Head. Frons and vertex covered with short, pale setae. Clypeus covered with few (7-15) thin pale setae, mainly on ventral half. Antenna long, (n = 2) 2.0-2.1 times as long as length from vertex to ventral margin of clypeus; flagellomeres longer than broad, with sixth flagellomere (n = 5) 1.2-1.4 times as long as wide. Thorax. Scutum covered with short pale setae. Legs. Fore leg with tibia (n = 3) 0.88-0.91 times as long as first tarsomere. Mid-tibia with (n = 5) 15-19 anterior, (n = 5) 2-4 posterodorsal, (n = 5) 6-8 posterior and (n = 5) 1-4 posteroventral bristles. Hind tibia with 4-8 anterodorsal, 4 posterodorsal and 2-3 posterior bristles. Wings. Vein r-m (n = 3) 1.81-2.2 times longer than stem of M-fork. Abdomen. Tergites covered with pale brown setae. Terminalia (Fig. 27). Each part of divided tergite IX apically with 4-7 setae, most apical seta stout. Gonocoxal apicoventral margin, between hypandrium and GL with 2-3 long and stout setae, usually reaching beyond GL apex (Fig. 27 a, b). Each GL apically with row of 5 setae, extending from apex along apical third or fourth of the external margin (Fig. 27 a, b). Aedaegal guides short, evenly tapering towards acute apex (Fig. 27 a). Hypandrium with apical part not distinctly fused with gonocoxites (Fig. 27 b), sometimes slightly protruding, covered with 7-12 setae, with apical pair stout and elongate, reaching beyond GL apex (Fig. 27 a, b). Hypandrial lobe with each branch elongated, narrow, evenly tapering. Gonostylus (Fig. 27 c) with DB slightly curved interiorly; apical lobe well defined, elongated, apex rounded; baso-internal and basodorsal part covered with several setae; apicodorsally with row of 2-3 elongate setae. VB round, with 2 setae, most apical seta on apex. IB apically rounded, apically with 1 seta on apex and pair of setae one-third from apex. MB short, curved interiorly towards acute, sometimes somewhat bifurcated apex; apically with 2 small setae.

Female: Unknown.

Diagnosis

Distinguished from all species in the E. parva group in having the gonocoxal lobe apex with a row of 5 setae extending down apico-exterior margin (Fig. 27 a, b), the hypandrium with apical part not distinctly fused with gonocoxites (Fig. 27 b) and the apicoventral gonocoxal setae and apical hypandrial setae stout reaching beyond apex of the gonocoxal lobes (Fig. 27 a, b).

Distribution

Oriental, Bhutan, Nepal (Fig. 19 )

Biology

Adults collected in the eastern Himalayas (2400-3400 m a.s.l.). Kallweit and Martens (1995) collected adults in a forest of Lithocarpus , Quercus , Magnolia , and Rhododendron species, trapped in inflorescences of the pitcher plant Arisaema griffithii .

Figures

Figure 19. Distribution map of species in the E. parva group occurring in the eastern Himalayas (Oriental Region), based on localities from studied material, type material and DNA-barcoded material. Different species are represented by individual colours. Altitudes are indicated in shades from grey (lowland) to white (mountains).