Bricelochlorops capitulatus, Riccardi, Paula Raile, 2016

Riccardi, Paula Raile, 2016, Notes on Bricelochlorops Paganelli 2002 (Diptera: Chloropidae), with the description of a new species, Zootaxa 4114 (1), pp. 87-89 : 87-88

Bricelochlorops capitulatus sp. nov.

( Figures 1 –5)

Material examined. Holotype ♀; Peru, Madre de Dios, Reserva Tambopata, ii.1987, Malaise trap, D. W. Davidson coll.; code LACM ENT 332183 [ LACM]

Description. Body length 7.1 mm. Wing length 6.6 mm.

Head ( Figs. 1–2, 4 ). Yellow, higher than long in profile, wider than long in dorsal view; frons pruinose, slightly projecting anteriorly; ocellar triangle black, pruinose, triangular in shape, lateral margin separated from eye margin, tip reaching apex of the frons; parafacialia large, pilose; gena wide, pilose; postgena thin, pilose; face shortened with a wide facial carina; clypeus darkened, swollen, divided into two parts; palpus and proboscis short; pedicel short, dark yellow, swollen; first flagellomere orbicular, dark yellow with apex blackish; arista dark yellow, pectinate, with the basal segment short. Chaetotaxy: one row of interfrontals inside the margin of the ocellar triangle the same size as frontal and orbital setae, frontal and orbital setae numerous, outer vertical and ocellar setae long, inner vertical seta indistinct; postocellars convergent. Thorax. Yellow; scutum arched, wider than head, as wide as long, with three blackish stripes separated from each other, pilosity dense, short and dark; scutellum shortened with the apical seta indistinct; pleura pruinose, with dark marks on notopleuron, anepisternum, katepisternum, anepimeron and meron; anepisternum and katepisternum with dark pilosity; postpronotal lobe with no seta and entirely yellow; 1+2 notopleural setae slightly conspicuous; halter pale yellow with a brown spot on the stem. Legs ( Fig. 3 ). Femur and tibia darkened; tibial organ long oval; mid and hind first tarsomere slightly enlarged. Wing (Fig. 5). Membrane slightly infuscated; wing sectors 1-2-3-4: 10-10-7-1; R2+3 straight; R4+5 slightly sinuose; R4+5 and M1+2 divergent; apex of M1+2 curved; cell dm-cu wide; anal lobe not well developed. Abdomen. Tergites black with a narrow yellow posterior margin. Female. Cercus dark, short. Male. Unknown.

Etymology. From Latin, capitulatus , meaning having a small head; a masculine adjective.

Comments. The head of this species is much narrower than the thorax and the enlarged first tarsomere of mid and hind legs are characteristics not observed in the other species of Bricelochlorops.

Figures

FIGURES 1 – 4. Bricelochlorops capitulatus sp. nov. 1, habitus. 2, head dorsal view. 3, tibial organ. 4, antenna lateral view. 5, wing. Scale bar 1 mm.