Antrops baeza, KITS & MARSHALL, 2013

KITS, JOEL H. & MARSHALL, STEPHEN A., 2013, <p class = " HeadingRunIn " align = " left "> <strong> Generic classification of the Archiborborinae (Diptera: Sphaeroceridae), with a revision of <em> Antrops </ em> Enderlein, <em> Coloantrops </ em> gen. nov., <em> Maculantrops </ em> gen. nov., <em> Photoantrops </ em> gen. nov., and <em> Poecilantrops </ em> gen. nov. </ strong> </ p>, Zootaxa 3704 (1), pp. 1-113 : 22-24

publication ID 10.11646/zootaxa.3704.1.1

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Antrops baeza

sp. nov.

Antrops baeza View in CoL sp. nov.

( Figs. 26, 29 View FIGURES 25–30 , 198 View FIGURES 195–203 )

Description. Head dark reddish brown, face, prementum, antenna, clypeus, and maxillary palp reddish orange. Covered with microtomentum, frons with shiny spots lateral to ocelli, face mostly shiny except lunule and small patch below antenna, gena with a small shiny spot medially. Ocellar bristles at level of anterior margin of median ocellus. Subvibrissal bristle about 0.3X length of vibrissa, anterior genal bristle about 0.5X length of vibrissa. Gena about 0.5X height of eye.

Thorax mostly dark brown, postpronotum, lateral margins of scutum, anepimeron, and dorsal part of katepisternum reddish. Microtomentum present only along anterior and lateral margins of scutum, in a thin band along posterior margin of anepisternum, along ventral margin and dorsal suture of katepisternum, most of anepimeron except anteromedial shiny spot, and all of meron, metapleuron, and laterotergite. Halter whitish, pale brown below knob.

Legs black, joints, trochanters, and tarsi reddish brown. Mid tibia with row of anterodorsal, 1 anteroventral, 1 posteroventral, 5 subapical bristles. Hind tibia with 3 ventroapical bristles.

Wing light brown, veins brown, crossveins r-m and dm-cu paler.

Abdominal tergites dark brown, heavily sclerotized, syntergite 1+2 with microtomentum on anterior half, tergites 3–5 with microtomentum on anterior third. Sternites moderately sclerotized in both sexes, brown, in male very thin and shiny, in female slightly narrower than wide, covered with microtomentum. Pleural setae long and pliant.

Male postabdomen: Sternite 5 with curved lateral margins, narrow anteriorly with narrow anterior apodeme about as long as external portion ( Fig. 29 View FIGURES 25–30 ). Surstylus narrow, scooped. Pregonite small, distinct. Postgonite with lobes well separated, anterior lobe broad and rounded, posterior lobe pointed. Basiphallus with short epiphallus, long, narrow preepiphallus. Distiphallus with a curved, spinose dorsal tube, with small ventral sacs ( Fig. 26 View FIGURES 25–30 ).

Female postabdomen: Tergites 6–7 and sternites 6–7 longer than wide, anterior and lateral margins sclerotized. Tergites with 3 posterior strips, sternites with 2 posterior strips. Tergite 8 narrow, anterior margin emarginated, entirely covered with microtomentum. Epiproct with long anterior arms, distal portion covered with microtomentum, with 2 pairs of setae. Cerci long, narrow. Sclerites of sternite 8 subtriangular, covered with microtomentum except anterior end. Hypoproct subrectangular, with a curved unsclerotized band medially, covered with microtomentum except anterior margin. Spermathecae cylindrical, about 2X longer than wide, without invaginations, sclerotized duct about 1.2X longer than spermathecae.

Type material. Holotype ♂: ECUADOR: Napo: Baeza , 15 km NW, 2200 m, dung trap, 2–6 Mar 1976, S. Peck, debu01039321 ( QCAZ) . Paratypes: same data as holotype (1 ♀, DEBU); E of Papallacta , 2900 m, 12–14 Jan 1971, [no collector] (2 ♂, USNM) .

Comments. This species is most similar to A. setosus and A. aurantifemur , but can be separated based on the black fore femur and the pattern of microtomentum on the pleural sclerites. The species name is derived from the nearest town to the type locality; although the road from Quito to Baeza has been fairly well-collected, only a few specimens of this species are known. The name should be treated as a noun in apposition.


Museo de Zoologia, Pontificia Universidad Catolica del Ecuador


Ontario Insect Collection, University of Guelph


Smithsonian Institution, National Museum of Natural History













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