Microphorella trochanterata, Brooks & Cumming, 2025

Brooks, Scott E. & Cumming, Jeffrey M., 2025, Revision of the Microphorella acroptera species group and establishment of the Microphorella arcana species group (Diptera: Dolichopodidae sensu lato: Parathalassiinae), Zootaxa 5661 (4), pp. 451-503 : 489

Microphorella trochanterata lineage

This distinctive lineage includes M. trochanterata sp. nov. and a second species, Microphorella sp. A , which is not formally named and described on account of the poor condition of the unique male specimen (see below). Males of this lineage share a number of putative synapomorphies including a large rounded or disc-like apex of the hind trochanter ( Figs 93, 94 ), a narrow process of abdominal sternite 6 ( Fig. 96 ), an articulated elbow-like phallus, a posteriorly produced hypandrium and a digitiform cercus with long setae ( Figs 97–99 ).

Figures

FIGURES 92–96. Male habitus, hindleg, wing and abdomen of Microphorella trochanterata sp. nov. 92. Habitus of holotype, arrow indicates setae of sternite 8. 93. Left hindleg of holotype, posterior view. 94. Same, anterior view. 95. Wing of paratype (Carmel Valley, California). 96. Abdomen of holotype, arrow indicates process of sternite 6. Abbreviations: bm-m—basal medial crossvein; cua—anterior cubital (=anal) cell; CuA—anterior branch of cubital vein; CuA+CuP—anterior branch of cubital vein + posterior branch of cubital vein; dm—discal medial cell; h—humeral crossvein; M1, M2, M4—medial veins; R1, R2+3, R4+5—radial veins; Sc—subcostal vein.

FIGURES 97–99. Hypopygium of Microphorella trochanterata sp. nov. (CNC1155849). 97. Hypopygium, right lateral view. 98. Same, left lateral view. 99. Cerci, dorsal view. Abbreviations: cerc—cercus; d sur—dorsal lobe of surstylus; epand— epandrium; hypd—hypandrium; pgt lb—postgonite lobe; ph—phallus; v epand proc—ventral epandrial process; v sur—ventral lobe of surstylus.