Poecilantrops stellans 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
Poecilantrops
Poecilantrops stellans

description: Poecilantrops stellans sp. nov.   
(Figs. 18, 190, 193, 234)  
 Description. Head black, clypeus, maxillary palp, and prementum dark brown. Antenna reddish brown. Occiput, frontal plate behind ocelli, orbital plates, ventral part of gena, face immediately below antenna, and ventral half of prementum with microtomentum. Ocellar bristles just anterior to median ocellus. Anterior genal and subvibrissal bristle about 0.3X length of vibrissa.   
Thorax black, mostly shiny; lateral and posterior margins of scutum, lateral corners of scutellum, small dorsal posterior patch on anepisternum, ventral margin of katepisternum, dorsal half of anepimeron, stripe between posterior spiracle and hind coxa, and laterotergites covered with microtomentum. Halter whitish, brown below knob. Acrostichal bristtles in 6 irregular rows, proepisternum with 2 setae.  
Legs black, femora orange at base, trochanters orange, tarsi dark brown. Mid tibia with anterodorsal and posterodorsal rows, 1 anteroventral, 1 posteroventral, ring of 4 subapical bristles. Hind tibia with 2 ventroapicals, slightly longer than width of tibia.  
 Wing with membrane brown, veins dark brown, white spots on crossveins r-m and dm-cu, 2 circular spots on vein R distal to r-m and 2 on CuA 1.   
 4+5   
Abdomen with tergites black, heavily sclerotized, covered with microtomentum. Syntergite 1+2 with a median ridge. Sternites of male strongly sclerotized, black, covered with microtomentum, sternites of female weakly sclerotized.  
Male postabdomen: Sternite 5 longer than wide, somewhat ovoid, posterior margin notched, with a thin, short anterior apodeme (Fig. 193). Surstylus subrectangular distally, somewhat scooped. Postgonite with very broad anterior lobe, thin and strongly curved posterior lobe. Basiphallus somewhat swollen, no distinct epiphallus, preepiphallus very short. Distiphallus with a thin spinose dorsal tube flanked by paired spike-like sclerites (Fig. 190).  
Female postabdomen: Tergites 6–7 weakly sclerotized, wider than long but with 3 weakly sclerotized strips posterior to the row of setae. Tergite 8 heavily sclerotized, trapezoidal, covered with microtomentum except anteromedial patch. Epiproct with microtomentum medially, 2 setae. Cerci covered with microtomentum. Sternites 6–7 weakly sclerotized, roughly as long as wide, with weakly sclerotized anterior strips. Sclerites of sternite 8 much longer than wide, heavily sclerotized, with microtomentum and setae apically. Hypoproct moderately sclerotized, lozenge shaped, covered with microtomentum. Spermathecae sausage-shaped, annulated.  
 Type material. Holotype ♂: ECUADOR: Napo: Quito–Baeza pass, 1 km E, 3950 m, forest edge, dung traps, 4–8 Nov 1999, S.A. Marshall, debu00112049 (QCAZ). Paratypes: same data as holotype (10 ♂, 5 ♀, DEBU); as above but elfin forest (1 ♀, DEBU); Papallacta, 14 km W, 4200 m, 27 Mar 1983, G. & M. Wood (1 ♂, DEBU); Quito - Baeza pass, 4000 m, elfin forest, dung trap, Mar 1979, S.A. Marshall (2 ♂, 3 ♀, DEBU); Quito - Baeza road, 4000 m, elfin forest, dung trap, 1 Mar 1979, S.A. Marshall (3 ♂, 1 ♀, DEBU); as above but Mar 1979 (1 ♀, DEBU); as above but pan traps, 18 Feb 1983, L. Masner (2 ♂, 3 ♀, DEBU); as above but low páramo, 18–23 Feb 1983 (3 ♂, 7 ♀, DEBU); as above but open páramo, 10–18 Feb 1983 (43 ♂, 46 ♀, DEBU); as above but 4100 m, in páramo, Mar 1983, H. Tituana (6 ♂, 16 ♀, DEBU); as above but páramo, L. Masner (8 ♂, 17 ♀, DEBU); as above but summit, 18–22 Feb 1983 (7 ♂, 5 ♀, DEBU); Santa Maria, below, 4000 m, elfin forest, pans, 10–18 Feb 1983, L. Masner (3 ♂, 1 ♀, DEBU); Carchi: Bosque El Arrayán, 6 km E San Gabriel, 2830 m, in moss, 1 Nov 1999, S.A. Marshall (1 ♂, DEBU); as above but leaf litter, 2 Nov 1999, R. Anderson (1 ♀, DEBU); as above but forest, dung traps, 2–4 Nov 1999, S.A. Marshall (3 ♂, 2 ♀, DEBU); Páramo El Ángel, 18.8 km NW El Ángel, 3300 m, pan in Polylepis litter, 3 Nov 1999, S.A. Marshall (4 ♂, 7 ♀, DEBU); Cañar: Pimo, N of Cañar, 3200 m, 13 Dec 1970, [no collector] (1 ♂, USNM); Napo / Pichincha: Cayambe-Coca Res., Papallacta Pass, 4200 m, páramo, yellow pans, 29 Apr–11 May 2002, Marshall & Buck (3 ♂, 6 ♀, DEBU); Quito - Baeza pass, 4000 m, pans traps in moss, 4–8 Nov 1999, S.A. Marshall (26 ♂, 28 ♀, DEBU); Pichincha: Cotopaxi Natl. Pk., Lago Limpiopungo, 3800 m, páramo, shrub litter, 25 Oct 1999, R. Anderson (1 ♀, DEBU); as above but shore, pan traps, 25 Oct–8 Nov 1999, S.A. Marshall (2 ♂, 2 ♀, DEBU); Cotopaxi Natl. Pk., Quebrada Mishahuaicu, 3600 m, along stream, pan traps, 26 Oct–8 Nov 1999, S.A. Marshall (2 ♂, DEBU); Quito - Baeza pass, 6 km W, pans/ dung, 4–8 Nov 1999, S.A. Marshall (6 ♂, 12 ♀, DEBU).   
 Comments. The species name (Latin stellans, starry) is a reference to the bold white spots on the wings, contrasting with the otherwise dark wings and body of this species. This is the only species of Poecilantrops with a shiny scutum.
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 103-104, DOI: 10.11646/zootaxa.3704.1.1, http://zenodo.org/record/6507447