Lachnocorynus Hesse, 1969

Boschert, Claire & Dikow, Torsten, 2022, Taxonomic revision of the mydas-fly genera Eremohaplomydas Bequaert, 1959, Haplomydas Bezzi, 1924, and Lachnocorynus Hesse, 1969 (Insecta, Diptera, Mydidae), African Invertebrates 63 (1), pp. 19-75 : 19

Lachnocorynus Hesse, 1969

Lachnocorynus Hesse, 1969: 46 .

BIF: https://www.gbif.org/species/1591101

Type-species: Lachnocorynus chobeensis Hesse, 1969 , by original designation.

Diagnosis.

The genus can be delineated by the densely setose head, the distinctly and deeply rugose scutum, and the costal vein terminating where M1 joins the wing margin.

Distribution, biodiversity hotspots, phenology, and biology.

Known only from three disjunct localities in northern Namibia, north-eastern Botswana, and north-eastern Zimbabwe (Fig. 56 ). A rarely collected genus known only from four specimens in museum collections, three collecting events between 1930-1986 (Table 1 ), and one observation on iNaturalist in 2019 (https://www.inaturalist.org/observations/26760859). The genus is not known to occur in any biodiversity hotspot. Adult flies are active in mid to late winter (Table 2 ), which corresponds to the dry season and lower temperatures. Nothing is known of the biology.

Figures

Figure 56. Map of southern Africa with elevational relief and biodiversity hotspots (sensu Conservation International in grey) and distribution of Eremohaplomydas desertorum, Eremohaplomydas gobabebensis sp. nov., Lachnocorynus chobeensis, and Lachnocorynus stenocephalus sp. nov. (SimpleMappr https: // www. simplemappr. net / map / 14089). Distribution and occurrence data available in Google Earth KML file https: // www. simplemappr. net / map / 14089. kml and also through GBIF (data-set https: // www. gbif. org / dataset / 993875 DD- 5915 - 4107 - 8707 - 835 D 5 A 8 D 1022, DOI https: // doi. org / 10.15468 / awpjz 9).