Macquartia sichuanensis Zhang & Zhang, 2023

Zhang, Baihui, Li, Henan, Li, Junjian, Zhang, Dong & Zhang, Chuntian, 2023, Taxonomic study of the genus Macquartia Robineau-Desvoidy (Diptera, Tachinidae) from China, Biodiversity Data Journal 11, pp. 106273-106273 : 106273

Macquartia sichuanensis Zhang & Zhang sp. nov.

Materials

Type status: Holotype. Occurrence: recordedBy: Zhang XZ; individualCount: 1; sex: male; lifeStage: adult; occurrenceID: 2F135E9F-254F-5C35-8229-FF89E906B01E; Taxon: scientificName: Macquartia sichuanensis; Location : country: China; stateProvince: Sichuan; locality: Wolong Nature Reserve , Wenchuan County ; verbatimElevation: 1920 m; verbatimCoordinates: 30.33°N, 103.42°E; decimalLatitude: 30.33; decimalLongitude: 103.42; Identification : identifiedBy: Zhang Chun-tian ; dateIdentified: 2022; Event : samplingProtocol: sweeping; eventDate: 30/07/1983; Record Level: collectionCode: Insects Type status: Paratype. Occurrence: recordedBy: Huang KR; individualCount: 1; sex: male; lifeStage: adult; occurrenceID: 1C86DC03-7A85-5516-AD88-F12FB8251AFA; Taxon: scientificName: Macquartia sichuanensis; Location : country: China; stateProvince: Sichuan; locality: Jiulao cave , Emei Mountains ; verbatimElevation: 1800-1900 m; verbatimCoordinates: 29.36°N, 103.29°E; decimalLatitude: 29.36; decimalLongitude: 103.29; Identification : identifiedBy: Zhang Chun-tian ; dateIdentified: 2022; Event : samplingProtocol: sweeping; eventDate: 08/05/1957; Record Level: collectionCode: Insects Type status: Paratype. Occurrence: recordedBy: Zhang Chun-tian ; individualCount: 1; sex: male; lifeStage: adult; occurrenceID: 665968BB-6DCF-5620-8B66-2229924FE0D9; Taxon : scientificName: Macquartia sichuanensis; Location : country: China; stateProvince: Chongqing; locality: Yintiaoling Nature Reserve , Wuxi County ; verbatimElevation: 1780-2070 m; verbatimCoordinates: 31.40°N, 109.88°E; decimalLatitude: 31.4; decimalLongitude: 109.88; Identification : identifiedBy: Zhang Chun-tian ; dateIdentified: 2022; Event : samplingProtocol: sweeping; eventDate: 14-16/08/2022; Record Level: collectionCode: Insects

Description

Body length 7.3-8.0 mm (Fig. 5 a, b).

Male. This species is similar to M. barkamensis sp. n. in appearance, but it is different from the latter in head (Fig. 5 c, d) having dark brown antenna, except for base of 1st postpedicel brown, palpus dark brown. Frons about as wide as anterior ocellar width, parafacial nearly as wide as 1st postpedicel, genal height about 1/7-1/8 of eye height; 8-9 frontal setae, lowest seta nearly up to upper level of pedicel; parafacial bare; facial ridge with short seta-like hairs on lower 1/5-1/3. Base of antenna nearly level with 1/3 lower of eye; antenna at least 4/5 as long as face, 1st postpedicel about 3-3.5 times as long as wide and about 3 times as long as pedicel; arista long plumose, aristal hairs as long as 1st postpedicel width. Prementum short, about twice as long as wide.

Thorax covered with brownish-grey white pruinosity on lateral surfaces of presutural scutum, anepisternum and katepisternum. Two presutural and 3 postsutural dorsocentral setae; pre-alar seta absent, 2 supra-alar setae longer than notopleural seta; apical scutellar setae crossed, about 1.5 times as long as scutellum. Proepisternum hairy, 1 upper anterior and a row of (6-7) posterior anepisternal setae, 3 katepisteral setae. Wing with tegula and basicosta dark brown; lower calypter brownish to brown. Costal spine at least as long as, or nearly, crossvein r-m, base of vein R4+5 with 3-7 fine setulae dorsally and ventrally, relative lengths of costal sectors 2nd, 3rd and 4th approximately as 2:6:3; vein M from dM-Cu crossvein to its bend about three times distance between the bend and hind margin of wing. Legs dark brown. Fore tibia with a row of 7-9 short anteriodorsal setae (sometimes 3-4 of them stronger), pre-apical anterodorsal seta distinctly weaker than pre-apical dorsal seta; mid-tibia with 4 posterodorsal setae, ventral seta absent; hind tibia with 6-8 anterodorsal, 3-4 of them long, 2-4 ventral setae, lower two stronger; 3 pre-apical dorsal setae equal in length.

Abdomen ovate with shiny black, Mid-dorsal excavation of syntergite 1+2 only extending to its basal half, antero-lateral suraces of 3rd and 4th tergite covered with greyish-white pruinosity. Syntergite 1+2 with two pairs of lateral marginal and with 2 lateral discal setae, median marginal seta absent; 3rd tergite with a row of (8-10) marginal setae, a pair of median discal setae and 1-2 pairs of lateral discal setae. Male terminalia as Fig. 6.

Female. Unknown.

Diagnosis

Parafacial bare, palpi dark. Two presutural and 3 postsutural dorsocentral setae, 3 katepisternal setae. Lower calyptrae divergent from scutellum. Mid-tibia with 1 anterodorsal seta. Abdomen with sparse pruinosity, syntergite 1+2 medially excavate to base, with a pair of lateral marginal setae, without median marginal and discal seta, 3rd tergite with a complete row of marginal and 2 median discal setae, 4th tergite separately with a row of discal and marginal setae.

Etymology

The specific epithet is taken from a locality of this species, i.e. Sichuan, China.

Distribution

Oriental China (Chongqing, Sichuan).

Remarks.

This species is similar with M. barkamensis sp. n. in appearance, but it is distinguished from the latter in having bare parafacial, dark brown palpi, 3 katepisternal setae, syntergite 1+2 with two pairs of lateral marginal setae, 3rd tergite with a complete row of marginal setae.