Photoantrops echinus, 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 : 93

publication ID 10.11646/zootaxa.3704.1.1

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Photoantrops echinus

sp. nov.

Photoantrops echinus View in CoL sp. nov.

( Figs. 10 View FIGURES 7–12 , 173–175 View FIGURES 173–180 , 232 View FIGURES 231–239 )

Description. Head yellow, interfrontal plates and a small spot at ventral margin of eye brown. Mostly covered with microtomentum, frons with thin shiny lines lateral to ocelli. Ocellar bristles absent, only 1 orbital bristle. Subvibrissal bristle about 0.5X length of vibrissa, anterior genal bristle about 0.3X length of vibrissa. Gena about 0.3X height of eye in male, about 0.3x height of eye in female. Occiput strongly rounded.

Thorax mostly brown, yellow on postpronotum, in a spot anterior to presutural dorsocentral, proepisternum, in a median spot on anepisternum, and ventral half of anepimeron, black on scutal suture. Mostly shiny; scutum, ventral margin of katepisternum, metapleuron, and laterotergite with microtomentum. Bristles greatly enlarged, other setae on scutum greatly reduced, barely visible in male. Halter whitish, brown below knob.

Legs mostly yellow, base of fore femur and all of mid and hind coxae and femora dark brown. Hind femur greatly swollen in male, about 7X width of tibia. Mid tibia with row of anterodorsal, row of posterodorsal, 1 anteroventral, and 4 subapical bristles. Hind tibia with row of anterodorsal, row of posterodorsal, and 2 ventroapical bristles.

Wing yellowish, with a small dark smudge at tip of vein R 2.

Abdomen with tergites brown, shiny. Syntergite 1+2 twice the width of tergite 3–5. Tergites 4 and 5 narrow anteriorly, with a shallow notch posteriorly. Setae along posterior margins of tergites and some pleural setae enlarged, longer in male than female. Sternites 2–3 narrow, weakly sclerotized, sternite 4 wider, lateral edges heavily sclerotized.

Male postabdomen: Sternite 5 with curved lateral margins, narrow anteriorly, without anterior apodeme ( Fig. 175 View FIGURES 173–180 ). Synsternite 6+7 asymmetrical, narrow, one section detached and forming a fan-shaped accessory sclerite flanking distiphallus in genital pouch; dorsal corner fused to sternite 8. Sternite 8 fused to epandrium along right side. Epandrium more or less symmetrical, with a cleft above anterior edge of surstylus, anterior setae greatly enlarged ( Fig. 174 View FIGURES 173–180 ). Cerci small and medially fused. Subepandrial sclerite Y -shaped, articulated with cerci and surstyli. Surstylus broad, subrectangular, articulated with epandrium and subepandrial sclerite. Hypandrial arms weakly fused with ventral edge of epandrium; hypandrial apodeme well-developed, rod-like, weakly fused with arms. Phallapodeme well-developed, rod-like. Pregonite small, fully fused with postgonite. Postgonite long, bilobed apically, anterior lobe rounded, posterior lobe narrow, curved, pointed, articulated with phallapodeme, hypandrium, and basiphallus. Ejaculatory apodeme large, fan-shaped apically. Basiphallus long, with a long thin epiphallus with a spur near base, no distinct preepiphallus. Distiphallus complex, without a distinct dorsal tube ( Fig. 173 View FIGURES 173–180 ).

Female postabdomen: Tergite 5 long and narrow, emarginated anteriorly. Tergites 6–7 and sternites 6–7 narrow, hourglass-shaped, anterior and lateral margins heavily sclerotized, weakly sclerotized medially. Tergites with 3 posterior strips, sternites with 2 posterior strips. Tergite 8 shiny, narrow, emarginated anteriorly, with a rounded lobe projecting laterally. Epiproct shiny, lozenge-shaped, anterior arms narrow, with 2 pairs of setae. Cerci long. Sclerites of sternite 8 shiny, broad, slightly narrower anteriorly, pinched medially. Hypoproct large, square, covered with microtomentum and setae. Spermathecae barrel-shaped, slightly longer than wide, with basal and apical invaginations, sclerotized duct short.

Type material. Holotype ♂: ECUADOR: Napo: SierrAzul Lodge , 14 km W Cosanga, 2200 m, at light, 8 May 2002, S.M. Paiero, debu00186468 ( QCAZ) . Paratype: same data as holotype but 8–10 May 2002, O. Lonsdale (1 ♀, DEBU) .

Comments. The species name is the Latin word for a sea urchin and refers to the spiny appearance of this fly which has enlarged bristles on the thorax and legs.


Museo de Zoologia, Pontificia Universidad Catolica del Ecuador


Ontario Insect Collection, University of Guelph













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