Antrops tetrastichus KITS & MARSHALL 2013, sp. nov.
Creators: name: KITS, JOEL H.
name: MARSHALL, STEPHEN A.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Sphaeroceridae
Antrops
Antrops tetrastichus

description: Antrops tetrastichus sp. nov.   
(Figs. 9, 15, 130–132, 221)  
 Description. As described for A. nitidicollis. Microtomentum on occiput reaching dorsally to bases of postocellar bristles. Lateral and posterior margins of scutum, margins of scutellum, latero- and mediotergite, meron and metapleuron covered with microtomentum, rest of thorax shiny. Presutural acrostichal setae in 4 rows. Microtrichia not reduced at base of wing. Abdominal tergites 4–5 with microtomentum on basal third, shiny laterally.   
Male postabdomen: Sternite 5 as described for the species group. Surstylus with anterior margin raised as a broad smooth ridge, anteroventral corner nearly right-angled, rounded, ventral tooth broad, pointed apically (Fig. 131). Pregonite indistinct, fully fused with postgonite. Postgonite with lobes barely separated, anterior lobe short, narrow, quadrate, posterior lobe pointed, long. Basiphallus narrow, with long epiphallus and preepiphallus. Distiphallus with narrow, rounded, spinose dorsal knob (Fig. 130).  
Female postabdomen: Tergites 6–7 and sternites 6–7 wider than long, moderately sclerotized, covered with microtomentum. Tergites with 3 posterior strips, sternites with 2 posterior strips. Tergite 8 shiny, widest anteriorly, pinched medially, shallowly emarginated anteriorly and posteriorly, anterior corners nearly meeting sternite 8 laterally. Epiproct with short, broad anterior arms, with 2 pairs of setae and a medial unpaired seta (Fig. 132). Cerci narrow. Sclerites of sternite 8 narrow, pinched medially, distal third broader and covered with microtomentum, apices pointed. Hypoproct depressed antero-medially (Fig. 133). Spermathecae round, long apical invagination meeting basal invagination, sclerotized duct short (Fig. 134).  
 Type material. Holotype ♂: ECUADOR: Napo: Quito–Baeza pass, 4000 m, elfin for., dung trap, Mar 1979, S.A. Marshall, debu01033780 (QCAZ). Paratypes: same data as holotype (5 ♂, 10 ♀, DEBU); Baeza, 42 km NW, 3300 m, dung trap, 2–6 Mar 1976, S. Peck (2 ♂, DEBU, USNM); as above but carrion trap (1 ♂, 1 ♀, DEBU); Quito–Baeza pass, 1 km E, 3950 m, elfin forest, dung traps, 4–8 Nov 1999, S.A. Marshall (1 ♂, DEBU); as above but forest edge (15 ♂, 14 ♀, DEBU); Quito–Baeza road, 4000 m, elfin for., dung trap, 1 Mar 1979, S.A. Marshall (14 ♂, 12 ♀, DEBU); as above but pan traps, 1–2 Mar 1979 (1 ♀, DEBU); as above but elfin forest, dung trap, 8 Mar 1979 (16 ♂, 1 ♀, DEBU); as above but elfin for., Mar 1979 (5 ♂, DEBU); as above but open páramo, pan traps, 10–18 Feb 1983, L. Masner (4 ♂, 6 ♀, DEBU); as above but low páramo, 18–23 Feb 1983 (2 ♂, 1 ♀, DEBU); as above but elfin forest, 18 Feb 1983 (2 ♀, DEBU); as above but 4100 m, summit, 18–22 Feb 1983 (1 ♀, DEBU); as above but páramo, 1 Mar 1983 (4 ♂, 3 ♀, DEBU); as above but in páramo, H. Tituana (2 ♂, DEBU); [no locality name], 0°17'S 78°10'W, 3800 m, elfin forest, 1 Mar 1979, W.R.M. Mason (1 ♂, CNCI); Cotopaxi: Latacunga, 45km NNE, 3700 m, shrub grass páramo, carrion traps, 19–25 Jul 1985, S. & J. Peck (3 ♂, 4 ♀, DEBU); Napo / Pichincha: Quito–Baeza pass, 4000 m, pans traps in moss, 4–8 Nov 1999, S.A. Marshall (2 ♂, 1 ♀, DEBU); Pichincha: Quito–Baeza pass, 6 km W, pans/ dung, 4–8 Nov 1999, S.A. Marshall (1 ♂, DEBU); [no locality name], 0°17'S 78°12'W, 4200 m, pan traps, 1–2 Mar 1979, S.A. Marshall (2 ♀, DEBU).   
 Comments. The species name is derived from the Greek tetra (four) and stichos (row), referring to the four rows of acrostichal setae. This character distinguishes this and the very similar A. unduavi sp. nov. from the nitidicollis complex.
description: Published as part of KITS, JOEL H. & MARSHALL, STEPHEN A., 2013, 
  Generic classification of the Archiborborinae (Diptera: Sphaeroceridae), with a revision of  Antrops  Enderlein,  Coloantrops  gen. nov.,  Maculantrops  gen. nov.,  Photoantrops  gen. nov., and  Poecilantrops  gen. nov.  , pp. 1-113 in Zootaxa 3704 (1) on pages 73-74, DOI: 10.11646/zootaxa.3704.1.1, http://zenodo.org/record/6507447