Epidapus (Macrotarsus) nanus Menzel, 2007

Broadley, Adam, Kauschke, Ellen & Mohrig, Werner, 2019, Revision of the black fungus gnat species (Diptera: Sciaridae) described by W. A. Steffan from Micronesia, Zootaxa 4683 (2), pp. 215-241 : 227-228

= Epidapus (Macrotarsus) nanus Menzel, 2007 , syn. n.

Epidapus (Macrotarsus) nanus Menzel, 2007 [ Menzel & Smith (2007): 68 –70; fig. 5–10].

Literature: Menzel & Smith (2009): 35–37, fig. 30–35.

Material studied: Holotype: Male, 30.vii.–1.viii.2000, Seychelles, North Island , Malaise trap (M11), on Lantana camara , leg. J. Gerlach ( SDEI).

Comments. The species is characterized by short antennae, 4 th flagellomere with a l/w index of 1.2, hairs longer than the width of the basal node; a 2-segmented palpus; wings short and broad; haltere short, gonostylus short and strongly pointed to the apex, with a long and slender apical tooth and 4 nearly as long apical spines, two above the tooth and two below. The species belongs by the characters of the hypopygium (short and pointed gonostylus with an apical tooth and 4 nearly as long spines and a large, wider than long tegmen with shouldered lateral sides) to the genus Epidapus , although all the other characters like the short halteres, short wings and short flagellomeres differ from the usual Epidapus characters. It is identical to Epidapus nanus Menzel, 2007 (holotypes compared), described from the Seychelles, so the latter is a new junior synonym. The name Macrotarsus was established by Mohrig (2004) as a subgenus of Epidapus but the name was later declared a junior homonym of Macrotarsus Link, 1795 (Mammalia) and a replacement name, Zuhalia, was proposed to be used instead ( Koçak & Hüseyinoğlu 2008).

Distribution. Micronesia ( Marshall Islands); Seychelles.