Serichlamys mitis ( Curran, 1940 )

Reemer, Menno & Mengual, Ximo, 2025, Revision of the Neotropical species of the hoverfly genus Serichlamys Curran, 1925 (Diptera, Syrphidae, Microdontinae), ZooKeys 1243, pp. 51-106 : 51-106

Serichlamys mitis ( Curran, 1940)

Figs 8 , 10 , 15 , 16 , 19 , 21 , 23 , 82–86 , 144

Microdon mitis Curran, 1940: 7. Holotype ♂: Brazil, Rio de Janeiro ( AMNH). [examined]

Microdon mitis Curran : Thompson et al. 1976: 66.

Serichlamys mitis (Curran): Reemer and Ståhls 2013 a: 148.

Studied type specimens.

Brazil • 1 ♂, holotype of Microdon mitis Curran ; Rio de Janeiro; Dist. Federal ; Sept. 1938; Servico Febre Amarela leg.; AMNH • 1 ♂, paratype of Microdon mitis Curran ; Rio de Janeiro; Dist. Federal ; Sept. 1938; Servico Febre Amarela leg.; USNM .

Additional specimens.

Brazil • 2 ♂ 1 ♀; Rio de Janeiro, Dist. Federal ; Sept. 1938; Servico Febre Amarela leg.; ZMUC • 19 ♂ 7 ♀; Rio de Janeiro, Dist. Federal ; Sept. 1938; Servico Febre Amarela leg.; USNM • 1 ♂; Rio de Janeiro, Dist. Federal ; Sept. 1938; Servico Febre Amarela leg.; RMNH [M. Reemer specimen code MR 0172 ] .

Diagnosis.

Body length: male 6.5–8 mm (n = 24), female 7.5–9.5 mm (n = 8). Together with S. melamitis Reemer , sp. nov. and S. mellimitis Reemer , sp. nov., this species combines a black face with antennae in which the postpedicel has a dark tip. This species differs from S. melamitis Reemer , sp. nov. by colouration of the tarsi (brown with apical tarsomere yellow, instead of entirely black) (Fig. 19 ). The male differs from S. melamitis Reemer , sp. nov. in the presence of a median projection on the ventral lobe of the surstylus (Fig. 144 ). The female differs from S. melamitis Reemer , sp. nov. in the brown scutellum (yellow in S. melamitis Reemer , sp. nov.).

From S. mellimitis Reemer , sp. nov. this species differs in the presence of three separate dull maculae on tergite 3 (Figs 15 , 16 ), and the brown lateral margins of the tergites (Figs 82–84 ). Male genitalia as in Fig. 144 .

Distribution.

This species is only known from Rio de Janeiro in Brazil.

Figures

Figures 5–12. 5, 6 colour of face of Serichlamys species 5 black (S. chloraspis Reemer, sp. nov. male, holotype) 6 yellowish brown (S. serpentiphallus Reemer, sp. nov. male, holotype) 7–9 hind tibiae of Serichlamys species 7 with contrasting colour pattern (S. vexilliphallus Reemer & Mengual, sp. nov. male, holotype) 8 uniformly yellowish brown (S. mitis (Curran, 1940) male, specimen MR 1576) 9 dark (S. pallitarsis Reemer & Mengual, sp. nov. male, holotype) 10–12 antenna of Serichlamys species 10 postpedicel pale brown with apical 1 / 3 dark (S. mitis (Curran, 1940) male, specimen MR 1576) 11 postpedicel entirely dark brown (S. varicaudata Reemer & Mengual, sp. nov. male, holotype) 12 postpedicel entirely orange (S. pallitarsis Reemer & Mengual, sp. nov. female, paratype).

Figures 13–17. Tergite 3 of Serichlamys species. White lines in lower half of figures indicate position of dull maculae 13 S. melamitis Reemer, sp. nov. male, holotype 14 S. mellimitis Reemer, sp. nov. male, holotype 15 S. mitis (Curran, 1940) male, specimen MR 1576 16 S. mitis (Curran, 1940) female, specimen MR 1581 17 S. varicaudata Reemer & Mengual, sp. nov. male, holotype.

Figures 18–23. 18, 19 hind tarsus of Serichlamys males 18 S. melamitis Reemer & Mengual, sp. nov. holotype 19 S. mitis (Curran, 1940) specimen MR 1576 20, 21 hind leg of Serichlamys females 20 S. melamitis Reemer & Mengual, sp. nov. paratype 21 S. mitis (Curran, 1940) specimen MR 1581 22, 23 scutellum of Serichlamys females 22 S. melamitis Reemer & Mengual, sp. nov. paratype 23 S. mitis (Curran, 1940) specimen MR 1581.

Figures 82–86. 82, 83 Serichlamys mitis (Curran, 1940) male, holotype 82 habitus, dorsal 83 habitus, lateral 84–86 Serichlamys mitis (Curran, 1940) female, additional specimen USNMENT 01866931 84 habitus, dorsolateral 85 head, frontal 86 head, dorsal.

Figures 142–145. Serichlamys male genitalia 142 S. melamitis Reemer, sp. nov. paratype, coll. MZUSP, specimen code MR 1591 143 S. mellimitis Reemer, sp. nov. holotype 144 S. mitis (Curran, 1940) coll. RMNH, specimen code MR 172 145 S. trigonoides Reemer, sp. nov. holotype.