Epicnemis testis Borgmeier, 1962

Gonzalez, Lisa & Häggqvist, Sibylle, 2020, Revision of the Oriental Region genus Epicnemis Borgmeier (Diptera: Phoridae), Zootaxa 4803 (1), pp. 103-124 : 120-122

Epicnemis testis Borgmeier

Figures 17 , 32.

Epicnemis testis Borgmeier 1962: 173 , figs. 5–6. Borgmeier 1967: 152.

Diagnosis. This species has extremely distinctive genitalia, with few, relatively thick setae on the epandrium and the phallus strongly curved at the base.

Description. Body 1.7–1.9 mm long. Frons brown and relatively wide; frontal width range 0.43–0.48. Frontal ratio 1–1.17. Twelve large frontal setae present, including one pair of supra-antennal setae. Ventral interfrontal setae slightly wider apart than dorsal interfrontal setae. Ocellar triangle brown and separated from rest of frons, with rounded posterior margin. Lateroventral part of frons with white triangular region with thin black line. Scutum yellowish-brown. Scutellum light brown, short, broad, with 4 subequal setae. Pleuron yellowish-brown dorsally to whitish ventrally. Foretibia with anterodorsal row of several differentiated setae, decreasing in size apically. Midtibia with one posterodorsal seta near base and one slightly more apical anterodorsal seta present; dorsally with setal palisade extending from base to midlength, more apically with transverse rows of fine setulae; few posterodorsal setae slightly enlarged apically. Hind tibia with several scattered medium-sized anterodorsal setae; dorsally with complete setal palisade, with row of small posterodorsal setulae closely parallel, followed more posteriorly by bare space before regular setulation. Wing large; mean costal length 0.47 wing length; range 0.46–0.49. Costal sector ratios 4–4.33:1. Halter knob yellowish-brown. Abdominal tergite 1 yellow except brown laterally, large, and extending laterally on segment. Tergites 2–6 similar in coloration except more brown laterally. Epandrium somewhat squared with slightly rounded margins; length and depth of epandrium subequal. Ventral elongate triangular process present; margin of epandrium concave posterior to ventral triangular process. Setae twice length of setae on cercus present along entire posteroventral margin of epandrium, ending at elongate triangular process; one enlarged seta triple the size of setae on cercus present on posterior margin of the epandrium, ventral to cercus. Phallus elongate, greater than length of epandrium, and strongly curved at base. Remainder of phallus narrow and straight with distinct separation between sclerites near apex.

Distribution. One of the most widespread species; broadly distributed across the range of the genus.

HOLOTYPE. ♂. MALAYSIA: Perlis: Kangar Rest House , 6.44°N, 100.2°E, 12 July 1958, T. Traub, light trap [ LACM ENT 383622 ] ( USNM).

PARATYPES. 1♂, same data as holotype ( USNM) .

Other material examined. CAMBODIA: Siem Reap: Angkor, Praeh Khan Temple , 13.47°N, 103.88°E, 2♂, 18–25.ix.2005, D.R. Jump, Malaise trap ( LACM) , 1♂, 21–28.xi.2005, O. Yothin, Malaise trap ( LACM) , Siem Reap, 13.47°N, 103.88°E, 1♂, 7–21.xi.2005, Yothin Oul, Malaise trap ( LACM) . INDONESIA: Sumatra: Bah Lias Estates , 3.17°N, 99.33°E, 43 m, 1♂, 16–23.ii.2012, M. & C. Hoddle, Malaise trap ( LACM) . THAILAND: Chiang Mai: Doi Inthanon National Park , campground pond, 18.54°N, 98.53°E, 1300 m, 1♂, 30.viii–6.ix.2006 ,

Y.Areeluck, Malaise trap T-237 ( LACM) . Khonkaen: Phu Pha Man NP, Tum Moob Cave , 16.75°N, 102°E, 296 m, 1♂, 13–20.vi.2006, R.Phatai, Malaise trap T-2 ( LACM) . Nong Bua Lampoo: Phu Khao-Phu Phan Kham NP, 16.81°N, 102.61°E, 1♂, 7.vii.2006, R.Singhatip, yellow pan traps T-77 ( LACM) , 1♂, 9.vii.2006, B. Nongphue, yellow pan traps T-81 ( LACM) , 5♂, 10.vii.2006, R. Singhatip, yellow pan traps T-78 ( LACM) ; Phu Khao-Phu Phan Kham NP, far from old house, 16.81°N, 102.61°E, 2♂, 27.vii–2.viii.2006, R.Singhatip, Malaise trap T-85 ( LACM) ; Phu Khao-Phu Phan Kham NP, Mt checkpoint, 16.81°N, 102.62°E, 6♂, 13–19.vii.2006, R.Singhatip, Malaise trap T-94 ( LACM) ; Phu Khao-Phu Phan Kham NP, nature trail, 16.8°N, 102.6°E, 100 m, 2♂, 5–12.vii.2006, R.Singhatip, Malaise trap T-89 ( LACM) ; Phu Khao-Phu Phan Kham NP, sign on mountain, 16.81°N, 102.61°E, 1♂, 27.vii–2.viii.2006, R.Singhatip, Malaise trap T-91 ( LACM) ; Phu Khao-Phu Phan Kham NP, trail nr river, 16.81°N, 102.61°E, 16♂, 5–12.vii.2006, R.Singhatip, Malaise trap T-83 ( LACM) . Phang Nga: Koh Ra , 9.17°N, 98.27°E, 30 m, 14♂, 6.ii.2001, G.Ballmer, Malaise trap ( LACM) . Phetchabun: Khao Kho NP, office, 16.66°N, 101.13°E, 1 m, 1♂, 5–12.vii.2006, S.Chatchum, Malaise trap T-164 ( LACM) . Phetchaburi: Kaeng Krachan NP, Ban Krang (checkpoint 2), 12.8°N, 99.45°E, 336 m, 1♂, 24–26.vi.2008, TIGER training course, Malaise trap ( LACM) . Trang: Khao Chong Forest Research Station , 7.55°N, 99.78°E, 75 m, 1♂, 20–21.i.2005, D.Lohman, Malaise trap ( LACM) .

Figures

FIGURES. 12–17. Male genitalia of Epicnemis species, left lateral.