Scatophila quadriguttata (Meigen)

Zatwarnicki, Tadeusz & Irwin, Anthony G., 2018, Taxonomic notes on the genera Scatella and Scatophila (Diptera: Ephydridae) with a remark on Trixoscelis chilensis (Trixoscelididae), Zootaxa 4377 (1), pp. 91-109: 104-106

publication ID

https://doi.org/10.11646/zootaxa.4377.1.6

publication LSID

lsid:zoobank.org:pub:CD3ED409-1877-4141-9AE3-ADAC1BE329BE

DOI

http://doi.org/10.5281/zenodo.5967111

persistent identifier

http://treatment.plazi.org/id/A26487EB-FFE9-5B78-FF0C-0B082D38FA87

treatment provided by

Plazi

scientific name

Scatophila quadriguttata (Meigen)
status

 

Scatophila quadriguttata (Meigen)  

( Fig. 24–29 View FIGURES23–24 View FIGURES25–26 View FIGURE 27–29 )

Ephydra quadriguttata Meigen, 1830: 120  

Scatophila quadriguttata: Becker, 1902: 311   (combination). Ephydra planiceps Boheman, 1853: 204   , new synonym.

Scatophila planiceps: Becker, 1905: 213   (combination).

Scatella variegata Loew, 1860: 43   , synonymized by Zatwarnicki, 1987: 286. Scatophila variegata: Becker, 1896: 243   (combination).

Ephydra vittigera Zetterstedt, 1855: 4756   , synonymized by Zatwarnicki, 1987: 286. Scatophila vittigera: Becker, 1905: 214   (combination).

Type material examined: The lectotype male of Meigen's species, designated by Cresson (1930: 131), is labelled: "4 guttata Coll. Winth.   ", "4 guttata   ", (red) preserved in NMW. Two paralectotypes: a female is labelled: "4 guttata Coll. Winth   ", " PARATYPE Ephydra   4- guttata Meigen   " (blue) and a male labelled: " TYPE Ephydra   4- guttata Meigen   " preserved in NMW. The lectotype male of Boheman's species (in good condition), herein selected, labelled: "Sc. br.", "Bhm." (all handwriting), and ten paralectotypes (8 males and 2 females) bearing the same labels, are preserved in NHRS; a male paralectotype, pinned directly (specimen in moderate condition, mesonotum darkened by liquid, right midleg lacking), labelled: "Sc br.", "Eph. planiceps Bohem. Sc   [SG]", " Ephydra planiceps Bhm.   " (all handwriting) preserved in MZLU.

Other material examined: BELGIUM: De Panne , 8. VIII. 1928, M. Goetghebuer, 3 ♂, 3 ♀ ( RBINS)   . CZECHIA: Praha-Holešovice , river bank, 200 m., 50.07N / 14.26E, 10.VII.1983, M. Barták, 1 ♀ ( CULSP) GoogleMaps   . GERMANY: Ins. Usedom Ahlbeck, 14–22. VIII. 1928, H. Zerny, 1 ♂ ( NMW); Wersen , 28. VIII. 1993, T. Zatwarnicki, 2 ♂, 2 ♀   . POLAND: Chojnów , 30. V. 1982, 2 ♀   ; 10. VI. 1982, T. Zatwarnicki, 1 ♂, 1 ♀; Wrocław- Wojnów , 12. VIII. 1982, T. Zatwarnicki, 2 ♀ ( TZPC)   . SWEDEN: Norrbotten: Råneå, Högsön, 1. VIII. 1978, H. Andersson, 1 ♂   ; Tärendö , 22. VI. 1969, L. Huggert, 1 ♂   ; Skania: Båstad , 14. VIII. 1 970, L. Huggert, 2 ♀   ; near Krankesjön, H. Andersson , 20. VI. 1975, 1 ♀, 7. VIII. 1971, 1 ♂ ( MZLU).  

Type localities: Meigen (1830) did not cite a locality for his type, but it is probably in the vicinity of Hamburg, the home-town of Wilhelm von Winthem, who collected the type specimens. Boheman (1853) gave Sjöbo in Sweden as the type locality (coordinates 55°38'5.3"N, 13°42'12.1"E).

Diagnosis. The species is closely related to S. caviceps (Stenhammar)   having sexual dimorphism of facial profiles: the male has a concave face with membranous central area ( Fig. 26 View FIGURES25–26 ) and the female a slightly convex face ( Fig. 25 View FIGURES25–26 ). It is distinguished from other similar species by the mesonotum having a median brown stripe before the suture, slightly broader than space occupied by the acrostichal setae and expanding posteriorly to include the dorsocentral bristles, as well as whitish centre of scutellar disc ( Fig. 24 View FIGURES23–24 ) and yellow base of the wing. Male terminalia ( Fig. 27–29 View FIGURE 27–29 ) with anterior margin of epandrium bears medial pointed projection and arcuate anterodorsal margin of the aedeagus.

Distribution. Palaearctic: Austria, Belgium, Czechia, Denmark, Finland, Germany, Great Britain, Hungary, Italy, Netherlands, Poland, Russia (European Territory), Slovakia, Slovenia, Sweden.

Remarks. After examination of the lectotype of Meigen's species we are satisfied that all features agree well with S. planiceps (Boheman)   , which makes this species a synonym of S. quadriguttata   .

NMW

Naturhistorisches Museum, Wien

NHRS

Swedish Museum of Natural History, Entomology Collections

MZLU

Lund University

RBINS

Royal Belgian Institute of Natural Sciences

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Ephydridae

Genus

Scatophila

Loc

Scatophila quadriguttata (Meigen)

Zatwarnicki, Tadeusz & Irwin, Anthony G. 2018
2018
Loc

Scatophila planiceps:

Becker 1905: 213
1905
Loc

Scatophila quadriguttata:

Becker 1902: 311
Boheman 1853: 204
1902
Loc

Scatella variegata

Zatwarnicki 1987: 286
Becker 1896: 243
Loew 1860: 43
1860
Loc

Ephydra vittigera

Zatwarnicki 1987: 286
Becker 1905: 214
Zetterstedt 1855: 4756
1855
Loc

Ephydra quadriguttata

Meigen 1830: 120
1830