Serichlamys mus (Curran, 1936)

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 mus (Curran, 1936)

Figs 37 , 40 , 44 , 45 , 50 , 87–92 , 146

Microdon mus Curran, 1936: 5. Holotype ♂: Brazil, São Paulo ( AMNH). [examined]

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

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

Studied type specimens.

Brazil • 1 ♂, holotype of Microdon mus Curran ; Juiquia , São Paulo; Sep. 1929; J. Lane leg.; AMNH. Label 1: “ Juquia-S. P. // J. Lane, XI, 1929 ”; label 2 (red): “ Microdon // mus [male symbol] // Curran // Holotype ”; label 3: “ Microdon // mus // Curran ” .

Additional specimens.

Brazil • 1 ♂; Angra dos Reis, Jopuhyba [?] F. do Rio; Trav. et Lopes leg.; USNM [ USNM specimen barcodes: USNMENT 01866933 ; M. Reemer specimen code MR 1587 ] • 1 ♀; São Paulo, Salesópolis, Est. Biol. Boraceia ; 18 Oct. 1960; K. Lenko leg.; MZUSP .

Diagnosis.

Body length: male 7–7.5 mm (n = 2), female: 9 mm (n = 1). Among the species of Serichlamys with a yellow face, this species can be identified by the following combination of characters: abdomen with greatest width at transition of tergites 2 and 3, scutellar calcars acute (not flattened or spoon-shaped), antennae pale brown, legs entirely brown with femora only slightly darker than tibiae. Male genitalia as in Fig. 146 . The female cannot be distinguished with certainty from specimens of S. serpentiphallus Reemer , sp. nov. and S. simpliciphallus Reemer , sp. nov.

Distribution.

This species is known from the Brazilian states São Paulo and Rio de Janeiro.

Figures

Figures 36–43. 36, 37 abdomen of Serichlamys males 36 S. trigonoides Reemer, sp. nov. holotype 37 S. mus (Curran, 1936) specimen USNMENT 01866933 (= MR 1587) 38, 39 hind leg of Serichlamys males 38 S. xanthocnemia Reemer, sp. nov. holotype 39 S. simpliciphallus Reemer, sp. nov. holotype 40–43 antenna of Serichlamys males (note that shape of postpedicel may vary within species, with apex acute or rounded) 40 S. mus (Curran, 1936) specimen MR 1587 41 S. spathulata Reemer, sp. nov. holotype 42 S. serpentiphallus Reemer, sp. nov. holotype 43 S. simpliciphallus Reemer, sp. nov. holotype.

Figures 44–49. Tergite 2 of Serichlamys, posterodorsal view. White lines in lower half of figures indicate position of patches of grey microtrichia (vary with viewing angle and lighting to get good view on shiny and dull parts) 44 S. mus (Curran, 1936) male, specimen MR 1587 45 S. mus (Curran, 1936) female, specimen MR 1606 46 S. spathulata Reemer, sp. nov. male, holotype 47 S. spathulata Reemer, sp. nov. female, paratype 48 S. serpentiphallus Reemer, sp. nov. male, holotype 49 S. simpliciphallus Reemer, sp. nov. male, holotype.

Figures 50–57. Scutellar calcars of Serichlamys 50 S. mus (Curran, 1936) male, holotype 51 S. spathulata Reemer, sp. nov. holotype, male 52 S. spathulata Reemer, sp. nov. female, paratype 53 S. serpentiphallus Reemer, sp. nov. male, holotype 54 S. serpentiphallus Reemer, sp. nov. male, paratype 55 S. serpentiphallus Reemer, sp. nov. male, paratype 56 S. simpliciphallus Reemer, sp. nov. male, holotype 57 S. simpliciphallus Reemer, sp. nov. male, paratype 1957 MZUSP.

Figures 87–92. 87–90 Serichlamys mus (Curran, 1936) male, holotype 87 habitus, dorsal 88 habitus, lateral 89 head, frontal 90 head, lateral 91, 92 Serichlamys mus (Curran, 1936) female (Salesópolis, coll. MZUSP) 91 habitus, lateral 92 head, frontal.

Figures 146–149. Serichlamys male genitalia (phallus grey-shaded) 146 S. mus (Curran, 1936) coll. USNM, USNMENT 01866933 147 S. spathulata Reemer, sp. nov. coll. JTS, specimen code MR 598 148 S. serpentiphallus Reemer, sp. nov. coll. RMNH, specimen code MR 381 149 S. simpliciphallus Reemer, sp. nov. holotype.