Coelioxys (Allocoelioxys), TKALCU, 1974

COELIOXYS (ALLOCOELIOXYS) TKALCU �, 1974

= Coelioxita Pasteels, 1977

= Coelioxula Pasteels, 1982

= Coelioxys (Intercoelioxys) Ruszkowski, 1986

= Coelioxys (Lepidocoelioxys) Ruszkowski, 1986

= Coelioxys (Mesocoelioxys) Ruszkowski, 1986 syn. nov.

= Coelioxys (Tropidocoelioxys) Gupta, 1991

= Coelioxys (Argcoelioxys) Warncke, 1992 syn. nov.

= Coelioxys (Orientocoelioxys) Gupta, 1992

= Coelioxys (Nigrocoelioxys) Gupta, 1993

Type species: Coelioxys afra Lepeletier, 1841 .

Diagnosis: The most obvious diagnostic characteristic of this subgenus is the conspicuously carinate and elevated lateral margins of the axilla ( Fig. 6 View Figures 6 and 7 ) in both sexes, a feature otherwise only observed in one other Coelioxys species: the Nearctic C. (Xerocoelioxys) edita . The T 6 apicodorsal processes in males are forked ( Fig. 23 View Figures 16–23 ) in most species (exceptions are Coelioxys bifoliata Pasteels, 1968 , Coelioxys madagascariensis Benoist, 1955 , and the argentea group sensu Pasteels (1968, 1977) (i.e. C. argentea , Coelioxys caeruleipennis Friese, 1904 , Coelioxys incarinata Friese, 1904 , and Coelioxys scutellotuberculata Pasteels, 1968 ). Coelioxys (Synocoelioxys) spp. also have forked T 6 apicodorsal processes but in that subgenus the processes are flattened, acute, and of unequal length, almost forming an irregular crenulate plate ( Fig. 34 View Figures 32–34 ), whereas in C. (Allocoelioxys) males the apicodorsal processes are weakly convex, approximately equal in length, rounded apically, and distinct, not forming a crenulate plate ( Fig. 23 View Figures 16–23 ).

Comments: This is one of the most diverse subgenera within Coelioxys , with at least 75 species assigned to it ( Ascher & Pickering, 2015). This subgenus is largely represented in the Afrotropical and Palaearctic regions, but some species are Indomalayan; at least one, Coelioxys smithii Dalla Torre, 1896 , occurs in the Australasian region and one, C. coturnix , has been introduced to the United States from the Palaearctic region ( Ascher & Pickering, 2015). Both these species exhibit the characteristics of the subgenus outlined above.

List of species: Coelioxys acanthopyga Alfken, 1940 , Coelioxys acanthura (Illiger, 1806) , C. afra , Coelioxys angulata Smith, 1870 , C. argentea , Coelioxys artemis Schwarz, 2001 , Coelioxys bifoliata Pasteels, 1968 , Coelioxys bifoveolata Pasteels, 1968 , Coelioxys binghami Pasteels, 1968 , Coelioxys brevis Eversmann, 1852 , Coelioxys bulbosa Pasteels, 1985 , C. caeruleipennis , Coelioxys capitata Smith, 1854 , Coelioxys carinicauda Pasteels, 1968 , Coelioxys castanea Morawitz, 1886 , Coelioxys caudata Spinola, 1838 , Coelioxys coloratula Cockerell, 1939 , Coelioxys congoensis Friese, 1922 , Coelioxys conspersa Morawitz, 1874 , Coelioxys cothura Cockerell, 1918 , C. coturnix , Coelioxys cuneata Smith, 1875 , Coelioxys desmieri Pasteels, 1968 , Coelioxys difformis Friese, 1904 , Coelioxys echinata Forster, 1853 , Coelioxys elegantula Alfken, 1934 , Coelioxys elongatula Alfken, 1938 , Coelioxys elsei Schwarz, 2001 , Coelioxys emarginata Forster, 1853 , Coelioxys emarginatella Pasteels, 1982 , Coelioxys erythrura Spinola, 1838 , Coelioxys florea Wu, 2006 , Coelioxys formosicola Strand, 1913 , Coelioxys foveolata Smith, 1854 , Coelioxys fuscipennis Smith, 1854 , Coelioxys genoconcavitus Gupta, 1991 , Coelioxys haemorrhoa Forster, 1853 , C. incarinata , Coelioxys indica Friese, 1925 , Coelioxys iranica Warncke, 1992 , Coelioxys kasachstana Warncke, 1992 , Coelioxys khasiana Cameron, 1904 , Coelioxys lata Cameron, 1908 , Coelioxys lucidicauda Cockerell, 1939 , Coelioxys luzonica Cockerell, 1914 , C. madagascariensis , Coelioxys mielbergi Morawitz, 1880 , Coelioxys nasuta Friese, 1904 , Coelioxys nitidicauda Pasteels, 1968 , Coelioxys obtusa Perez, 1884 , Coelioxys octodenticulata Friese, 1935 , Coelioxys perseus Nurse, 1904 , Coelioxys polycentris Forster, 1853 , Coelioxys pruinosa Smith, 1854 , Coelioxys quadrifasciata Gupta, 1992 , Coelioxys radoszkowskyi Popov, 1946 , Coelioxys rajasthaniensis Gupta, 1992 , Coelioxys recusata Schulz, 1906 , Coelioxys rubella Pasteels, 1968 , Coelioxys rufispina Walker, 1871 , C. scutellotuberculata , Coelioxys semenowi Morawitz, 1894 , Coelioxys sexmaculata Cameron, 1897 , C. smithii , Coelioxys sogdiana Morawitz, 1875 , Coelioxys somalica Friese, 1922 , Coelioxys somalina Magretti, 1895 , Coelioxys spativentris Friese, 1935 , Coelioxys spilaspis Cockerell, 1932 , Coelioxys squamigera Friese, 1935 , Coelioxys squamosa Friese, 1922 , Coelioxys squamosissima Pasteels, 1968 , Coelioxys squamosoides Pasteels, 1968 , Coelioxys squamosula Popov, 1946 , Coelioxys subelongata Wu, 1992 , Coelioxys sudanensis Cockerell, 1933 , Coelioxys unicula Cockerell, 1939 , and Coelioxys warnckei Schwarz & Gusenleitner, 2003 .