Perilampsis formosula (Austen)

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 : 2441-2442

publication ID	https://doi.org/ 10.1080/00222930903207868
persistent identifier	https://treatment.plazi.org/id/C1499727-E218-AC65-E265-FE45FF3A63AC
treatment provided by	Felipe
scientific name	Perilampsis formosula (Austen)
status

Treatment

Perilampsis formosula (Austen) View in CoL

( Figure 1E View Figure 1 )

Carpophthoromyia formosula Austen, 1910, p. 74 View in CoL .

Carpophthoromyia formosula: Bezzi, 1913 View in CoL (check list).

Ceratitis formosula: Enderlein, 1920 ( Cameroon record).

[Genus incertae sedis] formosula: Bezzi, 1918 (list).

Perilampsis formosula: Bezzi, 1920 View in CoL (new generic combination); Munro, 1939a (distribution); Cogan and Munro, 1980, p. 530 (Afrotropical catalogue); Norrbom et al., 1999, p. 186 (world catalogue).

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 complete except for hyaline interruption in apical end of cell r 1, with subapical tooth extending 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 orange brown. Arista pubescent, longest rays at most three times the width of base of arista. Frons ventral half yellow-white, dorsal part with transverse brown or yellow-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 two-thirds of mid and hind tibiae black-brown.

Wing ( Figure 1E 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 hyaline interruption in apical end of cell; covering cell r 2+3 only partially; with subapical tooth into cell r 4+5. Posterior apical band 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 0.5.

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

Female. As male. Female terminalia, oviscape about two-thirds length of abdominal tergites, shining black-brown, with black pilosity. Aculeus as in Figure 3a View Figure 3 , orange, flattened, about 7 times as long as broad, apex as in Figure 4a View Figure 4 , strongly narrowed, pointed tip.

Body length. 3.65–4.00 mm; wing length 3.90–4.40 mm.

Material examined

Holotype. 3, UGANDA, [unknown locality], 1909, D. Bruce ( BMNH).

Other material. CONGO (D.R.): 1♀, Parc National Garamba , 25.V.1951, H. De Saeger, II/fd/18, 1804 ( KMMA) . NIGERIA: 13, Oshgobo , November 1910, T.F.G. Mayer ( BMNH) . UGANDA: 13, Entebbe , 8.II.1910, C.C. Gowdey ( BMNH) ; 1♀, Mango Distr. , Kaazi, 14.I.1967, ex Ficus fruit ( TAU) .

Distribution

Congo (D.R.), Nigeria, Uganda. Also reported from Cameroon (Enderlein, 1920).

Hosts

One specimen in the TAU collection is labelled from Ficus L. ( Moraceae ). This is regarded as doubtful given the known host records for other representatives of the genus.