Apocephalus criniventris, Brown, Brian V., 2014

Brown, Brian V., 2014, Revision of the Apocephalus analis group of ant-decapitating flies (Diptera: Phoridae), Zootaxa 3857 (4), pp. 551-570 : 562-563

Apocephalus criniventris new species

( Figs. 29–31 , 48 )

Diagnosis. This species can be recognized by the tuftlike groups of ventral setae on the abdomen.

Description. Body length 1.1 mm. Frons 0.52 head width. Flagellomere 1 pyriform, yellow. Pleuron whitish yellow. Costa 0.60 wing length. Halter yellow. Abdominal tergites yellowish-brown, normal sized. Tergite 6 yellowish-brown, about as broad as tergite 5, entire, apical margin straight, posterior margin with few elongate thick setae. Venter of abdomen whitish-yellow, venter of segments 3–5 each with long setae, venter of intersegment 6–7 with few lateral setae. Venter of segment 6 lacking sclerite, with row of four setae in lateral pairs separated by medial gap. Oviscape elongate oval, anterior process short, broadly rounded, large, curved posteroventral seta and thinner, shorter, slightly more posterodorsal seta. Dorsum of oviscape bare. Apex roundly pointed, downturned, with few small apical setae. Ventral setae of oviscape in lateral groups of three moderately long setae, increasing in size posteriorly. Intersegment 7–8 without sclerotization. Anterior arms of stylet anteriorly parallel, well separated, stylet slightly curved in lateral view.

Distribution. Known from a single specimen from Amazonian Peru. Derivation of specific epithet. From Latin words for “hairy belly”, refering to the setulose venter of the abdomen.

Holotype. ♀, PERU: Madre de Dios: Pakitza, 11.94°S, 71.28°W, 356m, 4–9.iii.1992, B.Brown, D.Feener, Malaise trap #1 (MUSM) [LACM ENT 012232].

Figures

FIGURES 25 – 34. Female abdomens. 25, 32. Dorsal. 27, 29, 33, 34. Ventral. 31. Left lateral. 26, 30. Oviscape, dorsal.

FIGURES 43 – 51. Stylets, dorsal.