Apocephalus mucronatus Borgmeier

Brown, Brian V., 2012, Revision of the Apocephalus mucronatus group of ant decapitating flies (Diptera: Phoridae), Zootaxa 3413, pp. 19-28 : 26

Apocephalus mucronatus Borgmeier

( Figs. 7 , 14 , 20 , 28 )

Apocephalus mucronatus Borgmeier 1958: 344 –346, figs. 43, 48. Brown et al., 2010: 187.

Holotype. Ƥ, Brazil: Goiás: Santa Cruz, 15.v.1933, P.J.S. Schwarzmaier, with Camponotus blandus [barcode: LACM ENT 301001] ( MZSP; examined).

Species recognition. Abdominal tergites yellow with brownish markings; tergite six lacking posterior row of strong setae. Oviscape rounded, relatively short. Dorsomedian process of oviscape long.

Description of specimens. Body length 2 mm. Frons dark brown, mean frontal width 0.86. Median furrow present. Supra-antennal setae absent. Ventral interfrontal setae closer to midline than eye margin. Ocelli normal sized. Ommatidia normal sized. Flagellomere 1 rounded oval, brownish yellow, apically brown. Palpus normal sized. Scutum yellowish brown. Scutellum light brown, anterior seta small, subequal to posterior setulae of scutum. Pleuron yellowish brown. Anepisternum bare. Wing normal sized, mean costal length 0.43. Halter with yellow stem and brown knob. Abdominal tergites yellow anteriomedially and brown posterolaterally, normal sized. Tergite 6 about as broad as tergite 5, entire, apical margin straight, with thicker setae posterolaterally. Venter of abdomen gray. Venter of segment 6 with large sclerite, with row of long thick setae. Oviscape broad, anterior process short, broadly rounded, large lateral setae absent, with scattered dorsolateral setulae on apical one-quarter. Dorsomedian process long, ending near apex of oviscape. Apex broadly truncate, relatively straight, lacking dorsoapical setae. Venter with apical sclerite with triangular darkening posterolaterally; separated midventral sclerite nearly round, with large group of thin setae near apex. Intersegment 7–8 without sclerotization. Anterior arms of stylet anteriorly parallel, well separated, relatively flat.

Distribution. Southern Brazil, northern Argentina.

Other material examined. ARGENTINA: Santa Fe: San Cristóbal, 30.21ºS, 61.15ºW, over Camponotus blandus , 1Ƥ, 6 November 2005, L. Elizalde (39-26-27) ( CUMZ).

Figures

FIGURES 3 – 9. Female Apocephalus species, oviscapes, dorsal.

FIGURES 10 – 16. Female Apocephalus species, oviscapes, ventral.

FIGURES 17 – 23. Female Apocephalus species, tergite 6, dorsal.

FIGURES 24 – 29. Female Apocephalus species, segment 6, ventral.