Gasterophilus nigricornis (Loew, 1863)

Li, Xin-Yu, Pape, Thomas & Zhang, Dong, 2019, Taxonomic review of Gasterophilus (Oestridae, Gasterophilinae) of the world, with updated nomenclature, keys, biological notes, and distributions, ZooKeys 891, pp. 119-156 : 119

Gasterophilus nigricornis (Loew, 1863) Figs 3 A–C , 6A, B , 9 A–C , 10G , 13 A–C , 16 A–C , 18 E–H ; Table 1

Gastrus nigricornis Loew, 1863: 38. Type locality: Moldova, Bessarabia (as “Bessarabien”).

Gastrophilus viridis Sultanov, 1951: 41. Type locality: Kazakhstan, Kzyl-Ordinskaja, around Teren-Uzyakaskiy.

Gasterophilus migricornis : Colwell 2006: 291; incorrect subsequent spelling of nigricornis Loew, 1863.

Selected references.

Zumpt (1965: 119); Grunin (1969: 36); Soós and Minář (1986: 239); Xue and Wang (1996: 2214); Colwell et al. (2006: 36); Zhang et al. (2012, 2016); Li et al. (2018); Yan et al. (2019).

Diagnosis.

Antennal postpedicel red-brown to blackish. Facial plate setose. Meral setae with swollen tip. Wing completely hyaline. Crossvein dm-cu absent. Legs yellowish brown with femora distinctly darkened. Male cercus long and narrow, length/width ratio more than 3.0; surstylus yellow, with a rounded apex; processi longi elongated. Female sternite 8 longitudinally ridged in the middle and with a scallop-shaped apex.

Material examined.

CHINA - Xinjiang Uyghur Autonomous Region • 1♂; Barköl Kazak Autonomous County, Saerqiaoke; 14 Aug. 1968; collector unknown; IOZ • 9♂♂, 1♀; Kalamaili; 3 Apr.-18 May 2009; D. Zhang leg.; MBFU • 27♂♂, 1♀; Fuyun County, Qiakuertu; 25 Apr.-13 May 2009; F. Mo leg.; MBFU.

Hosts.

Domestic horse ( E. ferus caballus), donkey ( E. africanus asinus), Mongolian wild ass ( E. hemionus hemionus), wild horse ( E. przewalskii ).

Distribution.

Palaearctic - China (Inner Mongolia, Qinghai, Xinjiang), Kazakhstan, Kyrgyzstan, Moldova, Mongolia, Tajikistan, Turkmenistan, Ukraine, Uzbekistan.

Remarks.

The distribution of G. nigricornis appears to be limited to far eastern Europe and Central Asia. Thus, reports of G. nigricornis from western part of Europe [Spain: Lucientes (2002); Italy: Pape (2013)] are suspected to be misidentifications and the records are not included.

Figures

Figure 3. Left lateral view of habitus (A, D, G), head and thorax (B, E, H), and head in frontal view (C, F, I) of male Gasterophilus species A-C G. nigricornis (Loew); China (in MBFU) D-F G. pecorum (Fabricius); China (in MBFU) G-I G. ternicinctus Gedoelst; South Africa (in MBFU). Scale bars: 1 mm (A-I).

Figure 6. Dorsal view of habitus (A, C, E) and head and thorax (B, D, F) of male Gasterophilus species A, B G. nigricornis (Loew) C, D G. pecorum (Fabricius) E, F G. ternicinctus Gedoelst. Scale bars: 1 mm (A-F).

Figure 9. Dorsal view (A, D, G) and left lateral view (B, E, H) of habitus, and head in frontal view (C, F, I) of female Gasterophilus species A-C G. nigricornis (Loew); China (in MBFU) D-F G. pecorum (Fabricius); China (in MBFU) G-I G. ternicinctus Gedoelst; Kenya (in NHM). Scale bars: 1 mm (A, B, D-E, G, H); 0.5 mm (C, F, I).

Figure 10. Wing of Gasterophilus species, with A-C modified from Li et al. (2019) A G. flavipes (Olivier) B G. haemorrhoidalis (Linnaeus) C G. inermis (Brauer) D G. intestinalis E G. meridionalis (Pillers & Evans) F G. nasalis (Linnaeus) G G. nigricornis (Loew) H G. pecorum (Fabricius) I G. ternicinctus Gedoelst. Scale bars: 0.5 mm (A-C); 1 mm (D-I).

Figure 13. Dorsal (A, D, G), left lateral (B, E, H) and posterior (C, F, I) view of male genitalia of Gasterophilus species A-C G. nigricornis (Loew) D-F G. pecorum (Fabricius) G-I G. ternicinctus Gedoelst. Scale bars: 0.5 mm (A-I).

Figure 16. Dorsal (A, D), left lateral (B, E) and ventral (C, F) view of female genitalia of Gasterophilus species A-C G. nigricornis (Loew) D-F G. pecorum (Fabricius). Scale bars: 0.5 mm (A-F).

Figure 18. Right lateral (A, E, I) and ventral (B, F, J) view, micropyle (C, G, K) and ultrastructural details of plastron (D, H, L) of eggs in Gasterophilus species A-D G. nasalis (Linnaeus) E-H G. nigricornis (Loew) I-L G. pecorum (Fabricius). Scale bars: 100 μm (A, B, I-J), 10 μm (in the box of J); 20 μm (C, H, K); 15 μm (D); 20 μm (E), 50 μm (in the box of E); 150 μm (F); 25 μm (G); 10 μm (L).