Micromorphus Mik, 1878

Grichanov, I. Ya., 2022, First reliable record of the genus Micromorphus Mik, 1878 (Diptera: Dolichopodidae) from the Oriental Region, with the description of a new species from India, Russian Entomological Journal 31 (4), pp. 422-425 : 423

Genus Micromorphus Mik

Micromorphus Mik, 1878: 6 . Type species: Hydrophorus albipes Zetterstedt, 1845 (original designation).

DIAGNOSIS AND REMARKS. See Bickel [2022] and Grichanov, Brooks [2017] for diagnosis of the genus. Species of Micromorphus differ from those in closest Nepalomyia in arista-like stylus usually dorsal; acrostichal setae absent; male hind leg with tarsomere 1 lacking upcurved basal spur; and setal and cercal characters of hypopygium (e.g., pedunculate setae along ventral margin of epandrium). Species of Nepalomyia have antennal arista-like stylus apical (often arising in an apical excavation of the postpedicel), or subapical; acrostichal setae present; male hind leg with tarsomere 1 with upcurved basal spur. Identification keys were provided to Palaearctic [ Negrobov, 2000] and Afrotropical species [ Grichanov, 2013].

The type species collected from Sweden, M. albipes , is known from a female holotype lacking diagnostic characters (examined; MZLU: https://www.flickr.com/photos/tags/ mzlutype05935). Males of the two Swedish Micromorphus species with similar habitus were found in the MZLU collection [ Grichanov, Viklund, 2007: figs. 1, 2]. One of them is somewhat closer in hypopygium morphology to M. albipes figured schematically by Parent [1938: fig. 906]. The second species is identical to description and figure of hypopygium of M. mesasiaticus Negrobov, 2000 [ Negrobov, 2000: fig. 8]. No other pictures for Swedish M. albipes are known; so, I consider the Fig. 1 [ Grichanov, Viklund, 2007] as belonging to the typical M. albipes .