Tachydromia stenoptera Goncalves, Grootaert & Andrade 2021, sp. nov.
Creators: name: Gonçalves, Ana Rita
name: Grootaert, Patrick
name: Andrade, Rui
name: Paulo, Octávio S.
name: Mengual, Ximo
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Hybotidae
Tachydromia
Tachydromia stenoptera

description: Tachydromia stenoptera Gonçalves, Grootaert & Andrade sp. nov.
urn:lsid:zoobank.org:act: AB1CBE5D-22D9-4153-9EE5-FA711157B977
Figs 1, 14, 15 G–H, 17 G–H, 19 G, 21 F–G
Diagnosis
Overall very dark. Wing dimorphic: male stenopterous; wing with slightly lobed distal apex, dark for most part and lobe black and white; female micropterous, wing bilobate. Palpi, proboscis and antennae black; postpedicel lanceolate, ca 1.5 times as long as pedicel. Legs almost completely black. Abdomen black, tergites mostly glabrous and without grey microtrichia.
Etymology
The name of this species means ‘narrow wing’ and derives from the combination of two Greek words: the prefix steno- (stenos), meaning ‘narrow’, with the suffix -ptera (pterá), meaning ‘wing’. Hence, the name reflects the very narrow lobed distal apex of the male wing.
Type material examined
Holotype PORTUGAL • 1 ♂; Gouveia, São Pedro; 40°29′10.9″ N, 7°34′38.5″ W; 25 Apr. 2013; A.R. Gonçalves and R. Andrade leg.; RBINS.
Paratypes PORTUGAL • 1 ♂♂, 5 ♀♀; Gouveia, São Pedro; 40°29′10.9″ N, 7°34′38.5″ W; 25 Apr. 2013; A.R. Gonçalves and R. Andrade leg.; RBINS • 5 ♂♂, 5 ♀♀; Guarda, Panóias de Cima; 40°29′10.2″ N, 7°13′18.4″ W; 1 Apr. 2017; A.R. Gonçalves and R. Andrade leg.; RBINS.
Additional examined material
PORTUGAL • 1 ♀; Manteigas, São Pedro; 40º19′07.0″ N, 7º34′37.4″ W; 25 Apr. 2013; A.R. Gonçalves leg. • 2 ♂♂, 9 ♀♀; Gouveia, São Pedro; 40°29′10.9″ N, 7°34′38.5″ W; 25 Apr. 2013; A.R. Gonçalves and R. Andrade leg. • 3 ♂♂, 1 ♀; Guarda, Panóias de Cima; 40°29′10.2″ N, 7°13′18.4″ W; 1 Apr. 2017; A.R. Gonçalves and R. Andrade leg. • 5 ♂♂, 5 ♀♀; same collection data as for preceding; ZFMK • 4 ♂♂, 1 ♀; Guarda, Adão; 40°27′03.0″ N, 7°09′41.8″ W; A.R. Gonçalves and R. Andrade leg. • 3 ♂♂, 4 ♀♀; Sabugal, Quadrazais; 40°18′30.6″ N, 6°59′08.7″ W; 1 Apr. 2017; A.R. Gonçalves and R. Andrade leg. • 1 ♂, 1 ♀; Sabugal, Seixo do Côa; 40°24′48.0″ N, 7°01′07.6″ W; 1 Apr. 2017; A.R. Gonçalves and R. Andrade leg. • 1 ♂, 4 ♀♀; Sabugal, Fóios; 40°17′43.3″ N, 6°52′38.9″ W; 1 Apr. 2017; A.R. Gonçalves and R. Andrade leg.
Description
Similar to Tachydromia cantabrica sp. nov. except for the following:
Male
MEASUREMENTS. Body length: 2.1–2.8 mm (n = 5). Wing length: 0.8 mm– 0.9 mm (n = 5).
HEAD. Lateroclinate ocellars same length as postpedicel. Proclinate verticals ca ¾ as long as postpedicel.
ANTENNA. Postpedicel lanceolate, ca 2 times as long as pedicel.
THORAX. Postpronotal lobe bearing ca 7 setae laterally, ca 6 acrostichal setae, scattered; notopleuron with 1 strong, prominent seta; 6 small setae near mesothoracic spiracle.
WING. Slightly lobed distal apex, without digitation (Fig. 21F).
LEGS. Overall black; ventral and dorsal posterior surface of coxae, trochanter, basal 0.1 ventral surface of femora and knees, paler. Fore tibia bearing sparse ciliation of hair-like setae slightly longer than maximum diameter of tibia. Mid tibia anteroventral apical spur with 4 short, stout, curved spinose setae on distal half margin.
ABDOMEN. Tergites with grey microtrichia only on anterior margin of tergite 1 and near spiracles; sternites overall covered by grey microtrichia. Tergites with few and scattered setae, mostly present on posteromarginal surface and near spiracles; sternites with evenly distributed setae; apical sternites with long, distinct setae.
TERMINALIA (Fig. 14). Right epandrial lamella convex, globose. Right surstylus with several (ca 7) distinct denticle-like setae, mostly aggregated on distal margin. Right cercus longer than left, subcylindrical, left narrowing distally. Long setae of unequal length present on apical half of right cercus; long and stronger setae on apical margin of left cercus. Left epandrial lamella ⅔ as long as left cercus. Left surstylus suboval 2 times as long as wide, longer than cerci.
Female
Similar to male, except for following features: micropterous, with wings round, brownish wings, bilobate, bearing two setae on apical margin of each lobe, covered by grey microtrichia (Fig. 21G); legs covered with regular rows of setae, with distinct apical setae on fore femur, without other distinctive setae; apical projection on mid tibia absent; cercus pale brown with grey microtrichia and setae; without longer setae on apical sternites.
Distribution
Portugal. Only known from the western end of the Iberian Central System. It has not yet been found in Spain, but given that it was found very close to the border, it is very likely that it will eventually be found in this country.
description: Published as part of Gonçalves, Ana Rita, Grootaert, Patrick, Andrade, Rui, Paulo, Octávio S. & Mengual, Ximo, 2021, Revision of the morphology, phylogenetic relationships, behaviour and diversity of the Iberian and Italian ant-like Tachydromia Meigen, 1803 (Diptera: Hybotidae), pp. 1-56 in European Journal of Taxonomy 732 on pages 37-46, DOI: 10.5852/ejt.2021.732.1213, http://zenodo.org/record/4471717