Strongylophthalmyia coarctata Hendel, 1913

Zhou, Jiale, Evenhuis, Neal L. & Yang, Ding, 2023, A review of the Strongylophthalmyia coarctata subgroup (Diptera, Brachycera, Strongylophthalmyiidae) from China, with the descriptions of three new species, ZooKeys 1168, pp. 329-353 : 329

Strongylophthalmyia coarctata Hendel, 1913

Figs 1 , 2

Strongylophthalmyia coarctata Hendel, 1913: 87 (protologue); Hennig (1940: 309) (in key, figure); Steyskal (1971: 142) (in key); Rohlfien and Ewald (1972: 413) (type material, record); Steyskal (1977: 21) (catalogue, distribution); Yang and Wang (1998: 458) (in key, distribution, record); Lin and Chen (1999: 68) (listed); Papp (2005: 195) (record); Shatalkin (2007: 560) (type material, redescription); Iwasa and Evenhuis (2014: 103) (listed, distribution); Evenhuis (2016: 207) (listed, distribution); Qilemoge et al. (2021: 236) (catalogue, distribution). Syntypes (2♂4♀): China, Taiwan, Hengchun, SDEI.

Material examined.

China. Taiwan: Pingtung, Manzhou, Kankau [= Gangkou], 1912.iv, leg. H. Sauter (1♂, NHMUK) .

Diagnosis.

Generally shiny black (Figs 1 , 2 ); antennal first flagellomere of male yellow, ovate (Fig. 1 ), with a long slender process covered with dense white setulae (Figs 1 , 2 ); mesonotum blackish, postpronotum and propleuron partly yellowish brown (Figs 1 , 2 ); wing hyaline (Fig. 2 ); mid and hind femora yellow, with apex dark brown (Figs 1 , 2 ); distiphallus with small apical “glans” (see Hennig 1940: fig. 11).

Distribution.

China - Taiwan: Chiayi ( Papp 2005), Kaohsiung ( Rohlfien and Ewald 1972), Pingtung (Fig. 56 ).

Remarks.

This species was originally described based on "Mehrere ♀, 2♂" (syntype) from "Kankau (Koshun)" (now Hengchun, Pingtung, Taiwan, China) ( Hendel 1913). According to Rohlfien and Ewald (1972), the type material of this species was preserved in the collection of SDEI and included two males and four females. Shatalkin (2007) redescribed this species based on a male and a female which he referred as “holotype” and “paratype”, respectively, and mentioned that these specimens were deposited in the Museum für Naturkunde, Berlin, Germany (ZMHB). However, no such specimens could be found in the collection of ZMHB (J. Pohl, pers. comm.), and the collection of SDEI was unavailable to us during the present study. We therefore presume that the type material of this species is still kept in SDEI, and Shatalkin (2007) made an incorrect interpretation on its depository. The uses of the term “holotype” and “paratype” by Shatalkin (2007) did not constitute valid lectotype designations (ICZN 1999, Art. 74.7), therefore the status of the type specimens of this species should remain as syntypes.

During the present study, we have examined a male from “Kankau” (now Gangkou, Pingtung, Taiwan, China) in the collection of NHMUK. Images of the dorsal and lateral habitus of this specimen (Figs 1 , 2 ) are provided herein for facilitating the identification of this species.

Figures

Figure 56. Known distribution of species of the Strongylophthalmyia coarctata subgroup in China and South Korea.

Figures 1, 2. Strongylophthalmyia coarctata Hendel, 1913, non-type male, habitus: 1 dorsal view 2 lateral view. Scale bar: 1 mm.