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.