Revision of the morphology, phylogenetic relationships, behaviour and diversity of the Iberian and Italian ant-like Tachydromia Meigen, 1803 (Diptera: Hybotidae) Author Gonçalves, Ana Rita 1A0C6FC2-1273-4DFD-A306-874D90860F61 Computational Biology and Population Genomics Group, cE 3 c, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749 - 016 Lisboa, Portugal. ana.goncalves@mail.mcgill.ca Author Grootaert, Patrick B80BC556-9087-4D0D-9D69-7FA9BE5779C4 Royal Belgian Institute of Natural Sciences, Brussels, Belgium and Lee Kong Chian Natural History Museum, National University of Singapore, Singapore. pgrootaert@yahoo.co.uk Author Andrade, Rui 36D41774-1466-4297-BB51-CCCEEE6DCB4E Rua Calouste Gulbenkian 237 4 H 3, 4050 - 145 Porto, Portugal. ruiamandrade@yahoo.com Author Paulo, Octávio S. 2F8855AC-67EC-47BC-ADF5-019EAF332A7A Computational Biology and Population Genomics Group, cE 3 c, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749 - 016 Lisboa, Portugal. ofpaulo@fc.ul.pt Author Mengual, Ximo A509310D-B567-4830-B8A4-BCB139BB8768 Zoologisches Forschungsmuseum Alexander Koenig, Leibniz-Institut f ̹ r Biodiversität der Tiere, Adenauerallee 160, 53113, Bonn, Germany. X.Mengual@leibniz-zfmk.de text European Journal of Taxonomy 2021 2021-01-25 732 1 56 journal article 8644 10.5852/ejt.2021.732.1213 e98cc372-5374-45f3-b965-c57d9a916566 2118-9773 4471717 39F0C998-10AE-44BF-B1ED-7593AD4AE3AA Tachydromia nigrohirta Gonçalves, Grootaert & Andrade sp. nov. urn:lsid:zoobank.org:act: 4DC85AF4-8CAA-429A-A6DF-1F071BD34857 Figs 1 , 10 , 15 C–D, 17 C–D, 19 I, 20 G–H Diagnosis Overall very dark and hirsute. Wing dimorphic: male stenopterous; lobed distal apex, suboval, with minute digitation on apical margin. Stalk-like process dark brown on basal half, pale on distal half; distal ⅔ of lobe black, basal ½ and digitation translucid; female micropterous, wing bilobate. Palpi, proboscis and antennae black. Postpedicel lanceolate, 2 times as long as pedicel; stylus 1.5 times as long as scape, pedicel and postpedicel combined. Legs mostly black except for yellowish to pale brown trochanters, knees and tarsomeres 1 and 2. Abdomen black, tergites uniformly covered by grey microtrichia and long setae. It closely resembles T. lusitanica , from which it can mainly be distinguished by the noticeably darker leg colouration, male wing with only a minute digitation on apical margin, and male terminalia. Etymology Name composed of two Latin words: ‘ niger ’ (nigro) meaning ‘black’ and ‘ hīrtus ’ (hirta) meaning ‘hairy’. The name combination indicates that this is a characteristically dark and hairy species. Type material examined Holotype SPAIN • 1 ♂ ; Salamanca , El Maíllo ; 40º33′24.8″ N , 6º10′23.9″ W ; 30 Mar. 2015 ; A.R. Gonçalves and R. Andrade leg.; RBINS . Paratypes SPAIN • 2 ♂♂ , 2 ♀♀ ; Salamanca , El Maíllo ; 40º33′24.8″ N , 6º10′23.9″ W ; 30 Mar. 2015 ; A.R. Gonçalves and R. Andrade leg.; RBINS • 3 ♂♂ , 2 ♀♀ ; Salamanca , El Maíllo ; 40º33′24.8″ N , 6º10′23.9″ W ; 25 Apr. 2017 ; A.R. Gonçalves leg.; RBINS . Additional material examined SPAIN • 3 ♂♂ , 2 ♀♀ ; Salamanca , El Maíllo ; 40º33′24.8″ N , 6º10′23.9″ W ; 30 Mar. 2015 ; A.R. Gonçalves and R. Andrade leg. • 3 ♂♂ , 5 ♀♀ (all male terminalia studied, RBINS ); Salamanca , La Alberca ; 40º29′04.0″ N , 6º05′10.2″ W ; 31 Mar. 2015 ; A.R. Gonçalves and R. Andrade leg. • 1 ♂ , 3 ♀♀ ; Salamanca , La Alberca ; 40º29′04.0″ N , 6º05′10.2″ W ; 25 Apr. 2017 ; A.R. Gonçalves leg. • 2 ♂♂ , 2 ♀♀ ; same collection data as for preceding; ZFMK • 4 ♂♂ , 2 ♀♀ ; Salamanca , El Maíllo ; 40º33′24.8″ N , 6º10′23.9″ W ; 25 Apr. 2017 ; A.R. Gonçalves leg. • 2 ♂♂ , 1 ♀♀ ; Salamanca , Villasrubías ; 40°19′42.3″ N , 6°38′42.1″ W ; 25 Apr. 2017 ; A.R. Gonçalves leg. Description Similar to Tachydromia cantabrica sp. nov. except for the following: Male MEASUREMENTS. Body length: 2.4–2.6 mm (n = 5). Wing length: 0.7–0.8 mm (n = 5). HEAD. Ocellar tubercle glabrous, shiny black. Lateroclinate ocellars ca ½ smaller than length of postpedicel. Proclinate verticals ca ½ as long as postpedicel. ANTENNA. Postpedicel lanceolate, 2 times as long as pedicel. Stylus 1.5 times as long as scape, pedicel and postpedicel combined. THORAX. Postpronotal lobe with ca 7 setae laterally. WING. Stalk-like portion dark brown on basal half, pale on distal half ( Fig. 20G ). LEGS. Black, except for yellowish to brown trochanters, knees and tarsomeres 1 and 2. Fore tibia with dense ciliation of long hair-like setae (distinctively larger than maximum diameter of tibia) with curved tips. Mid tibia anteroventral apical spur with distinct apical elongation ( Fig. 19I ), on basal half margin with 4 short, stout, curved spinose setae. TERMINALIA ( Fig. 10 ). Left epandrial lamella ½ shorter than left cercus, deeply bilobed. Left surstylus 2 times as long as wide. Female Similar to male, except for following features: micropterous, wing round, brownish, bilobate, apical margin of each lobe bearing setae, posterior lobe with 1 long seta and the anterior with 3 short setae, both covered with grey microtrichia ( Fig. 20H ); legs covered with regular rows of setae; spur on mid tibia absent; cercus pale brown with grey microtrichia and setae; no longer setae on apical sternites. Distribution Spain . Only known from a few localities in the western part of the Iberian Central System.