Empidoid flies from Cabo Verde (Diptera, Empidoidea, Dolichopodidae and Hybotidae) are not only composed of Old World tropical species Author Grootaert, Patrick Author Velde, Isabella Van De text European Journal of Taxonomy 2019 2019-05-29 528 1 17 journal article 26611 10.5852/ejt.2019.528 af825f01-156e-4a46-9626-f285833d202e 3236093 E2B81308-1AEB-40E6-8981-5A597B48CB42 Tachytrechus tessellatus ( Macquart, 1842 ) Fig. 3 Dolichopus tessellatus Macquart, 1842: 185 . Type locality Senegal . Hercostomus ponderosus Frey, 1958: 15 . Type locality Cape Verde , Sal , Pedra Lume. For a complete list of synonyms we refer to Grichanov (2018) . Material examined CAPE VERDE • 2 ♂♂ , 1 ♀ ; Sal , Santa Maria ; 16°37′24.22″ N , 22°55′47.89″ W ; 3 Feb. 2019 ; P. Grootaert and I. Van de Velde leg.; artificial pit filled with water on the upper beach; RBINS • 3 ♂♂ , 2 ♀♀ , same collecting data as for preceding; 4 Feb. 2019 ; P. Grootaert and I. Van de Velde leg.; RBINS . Remarks The present species corresponds to the morphospecies known as Tachytrechus tessellatus ( Macquart, 1842 ) described from Senegal . It has a wide Old World tropical and subtropical distribution from the Cape Verde archipelago in the west, all across continental Afrotropical Africa; in the Palaearctic realm it is known from Israel and Egypt , recorded throughout the Oriental Realm from the islands in the Indian Ocean, India and Sri Lanka to Indonesia and the Philippines in the east ( Grichanov 2018 ). Recently, we also recorded it from southern Thailand and Singapore (Grootaert, Van de Velde & Samoh, unpublished). There, it consists of two well separated populations with a barcode difference of 2.8% (Grootaert, Samoh & Meier, unpublished). Fig. 3. Tachytrechus tessellatus ( Macquart, 1842 ) , male, habitus (leg. P. Grootaert and I. Van de Velde, RBINS; photo credit Rene Ong). Scale: 1 mm. We generally found this species along temporary bodies of water such as small lagoons on the supralittoral zone of the beach or in sun-exposed rainwater drains. On Sal , they were observed displaying on the border of an artificial water pit close to the beach. Hybotidae Meigen, 1820 Tachydromiinae Meigen, 1822 Crossopalpus Bigot, 1857