Perilampsis incohata, 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 : 2442-2444

publication ID	https://doi.org/ 10.1080/00222930903207868
persistent identifier	https://treatment.plazi.org/id/C1499727-E21B-AC63-E1AC-FB6DFD63651B
treatment provided by	Felipe
scientific name	Perilampsis incohata
status	sp. nov.

Treatment

Perilampsis incohata View in CoL sp. nov.

( Figures 1F View Figure 1 , 3C View Figure 3 , 4C 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 incomplete, with trace of subapical tooth into cell r 4+5, touching discal band in male, in female further reduced to brown patches, 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, median part sometimes with two brown patches or transverse band. 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 fifth of hind tibiae black-brown.

Wing ( Figure 1F View Figure 1 ). Wing bands brown, largely reduced. No basal spots or streaks, except for subbasal band. Anterior apical band covering cell r 1 incompletely, only represented by narrow line and brownish patches; covering cell r only partially; sometimes with trace of 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 0.53–0.60.

2+3

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: pubescence of arista slightly longer; mid and hind tibiae dark on anterior 1/2 to 2/3. Anterior apical band further reduced. Female terminalia, oviscape about 2/3 length of abdominal tergites, shining black-brown, with black pilosity. Aculeus ( Figure 3c View Figure 3 ) orange, flattened, about six times as long as broad, apex ( Figure 4c View Figure 4 ) strongly narrowed, pointed tip.

Body length. 3.20–4.20 mm; wing length 3.40–4.80 mm.

Material examined

Holotype. 3, KENYA, Kirimiri Forest (S0°25′38″ E37°32′43″), 21.I.2003, R.S. Copeland, USDA/ICIPE collecting campaign Nr 2383, ex fruit Agelanthus sansibarensis (Loranthaceae) .

Paratypes. KENYA 233, as holotype. ETHIOPIA: Kefa , 35km S Jimma, 2700m, 1♀, 11.II.2000; 1♀, 12.II.2000, all A. Freidberg and I. Yarom ( TAU) .

Holotype deposited in collection of NMK; paratypes in collections KMMA, TAU and USNM.

Etymology

After the Latin incohatus, meaning inchoate or incomplete and referring to the wing banding with reduced anterior apical band.

Distribution

Ethiopia, Kenya.

Hosts

Material from Kenya was reared from Agelanthus sansibarensis (Engl.) Polhilland- Wiens ( Loranthaceae ).

Comments

As the previous new species, P. incohata sp. nov. also belongs to the group with reduced wing banding. It differs from the other species of the same group by the anterior apical band being even further reduced.