Perilampsis deemingi, Meyer, 2009

Meyer, Marc De, 2009, Taxonomic revision of the fruit fly genus Perilampsis Bezzi (Diptera, Tephritidae), Journal of Natural History 43 (39 - 40), pp. 2425-2463 : 2439-2441

publication ID	https://doi.org/ 10.1080/00222930903207868
persistent identifier	https://treatment.plazi.org/id/C1499727-E206-AC66-E26E-FACDFE18668B
treatment provided by	Felipe
scientific name	Perilampsis deemingi
status	sp. nov.

Treatment

Perilampsis deemingi View in CoL sp. nov.

( Figures 1D View Figure 1 , 3B View Figure 3 , 4B View Figure 4 )

Diagnosis

Arista pubescent; scutum with one broad transverse band; postpronotum white; scutellum white; anatergite and katatergite completely white; legs yellow with femora dark; wing, anterior apical band without subapical tooth into cell r 4+5, touching discal band, posterior apical band absent, discal band reaching posterior margin; abdomen mainly shining black-brown.

Description

Head. Antennal segments dark brown. Arista pubescent, longest rays at most twice the width of base of arista. Frons ventral half yellow-white, dorsal part with transverse brown band along width of orbital setae, area above posterior orbital till occiput yellow-white. Two frontals, placed parallel to medial eye margin; two orbitals, placed slightly convergent with anterior orbital located more medially. Face white, dorsal third dark brown. Occiput black-brown, only margins white.

Thorax. Scutum shining black-brown, more yellowish brown near transverse suture; dark dispersed pilosity, one broad transverse band with silvery pilosity and microtrichosity anteriorly of transverse suture. Postpronotum white. Anepisternum brown, with white band occupying posterodorsal part, its ventral margin reaching posteroventral corner or almost so; with pale pilosity except in posteroventral corner with few dark setulae; one anepisternal seta. Anatergite and katatergite white. Scutellum white. Subscutellum brown. Legs pale yellow, femora and anterior half of mid and hind tibiae black-brown.

Wing ( Figure 1D View Figure 1 ). Wing bands brown, largely reduced. No basal spots or streaks, except for subbasal band. Anterior apical band covering cell r 1 completely except for small hyaline spot in apical end of cell; covering cell r 2+3 only partially; without subapical tooth into cell r 4+5. Posterior apical band absent. Subapical band strongly reduced, usually as narrow line, sometimes almost completely absent. Area between subbasal band and discal band hyaline. Discal band and anterior apical band united at pterostigma. Discal band reaching posterior wing margin. R-M ratio 0.42–0.48.

Abdomen. Shining black-brown, posterior margin of tergite 2 with narrow greyish band, tergite 5 with small yellow patch posteromedially.

Female. As male, except for the following characters: mid and hind tibiae dark on anterior two-thirds. Female terminalia, oviscape about two-thirds of length of abdominal tergites, shining black-brown, with black pilosity. Aculeus ( Figure 3B View Figure 3 ) orange, flattened, about 7 times as long as broad, apex ( Figure 4B View Figure 4 ) strongly narrowed, pointed tip.

Body length. 3.60–4.20 mm; wing length 3.30–4.20 mm.

Material examined

Holotype. 3, NIGERIA, Zaria , Samaru, 1.VII.1969, J.C. Deeming, m. v.trap (BMNH) .

Paratypes. NIGERIA, Zaria , Samaru, 733 5♀♀, as holotype; 13 1♀, as holotype except 9.VI.1969; 533 4♀♀, as holotype except 30.VI.1969; 1♀, as holotype except 11.VI.1969; 1♀, as holotype except June 1979 ( BMNH) . CONGO (D.R.): 333 4♀♀, Parc National Garamba , 8.XI.1951, H. de Saeger, Nr 2740 ( KMMA) .

Etymology

Named after the collector, J.C. Deeming, in honour of his numerous contributions to dipterology.

Distribution

Congo (D.R.), Nigeria.

Comments

This new species belongs to the group with reduced wing pattern, especially lacking the posterior apical band. It differs from other members of this group by the absence of a subapical tooth (remains of posterior apical band), and by the weak and strongly narrowed subapical band.