Perilampsis pulchella (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 : 2453-2455

publication ID	https://doi.org/ 10.1080/00222930903207868
persistent identifier	https://treatment.plazi.org/id/C1499727-E214-AC68-E26B-FA4DFC9B62F3
treatment provided by	Felipe
scientific name	Perilampsis pulchella (Austen)
status

Treatment

Perilampsis pulchella (Austen) View in CoL

( Figures 2F View Figure 2 , 3H View Figure 3 , 4J View Figure 4 )

Carpophthoromyia pulchella Austen, 1910, p. 72 View in CoL .

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

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

Perilampsis pulchella: Bezzi, 1920 View in CoL (new generic combination, record Ethiopia); Munro, 1939a (distribution); Munro, 1969 ( Ivory Coast); Speiser, 1915 ( Cameroon); Cogan and Munro, 1980, p. 530 (Afrotropical catalogue); Norrbom et al., 1999, p. 186 (world catalogue).

Diagnosis

Arista pubescent; scutum with two transverse bands; postpronotum white; scutellum white; anatergite and katatergite completely white; legs yellow with femora dark yellow to brown; wing, anterior apical band complete, touching discal band, posterior apical band present, discal band reaching posterior margin; abdomen mainly shining black-brown.

Description

Head. Antennal segments brown. Arista pubescent, rays about twice as long as width of base of arista. Frons ventral 2/5 yellow-white, dorsal part orange-brown. Two frontals, placed parallel to medial eye margin; two orbitals, placed slightly convergent with anterior orbital located more medially. Face white; with broad brown band occupying 2/5 to 1/2 of face near antennal implant. Occiput yellow, with two darker, largely confluent, patches in dorsal part, sometimes more extensive.

Thorax. Scutum shining brown; dark dispersed pilosity; two transverse bands with silvery pilosity and microtrichosity, one anteriorly of transverse suture, second, less developed, band near dorsocentrals; second band sometimes without microtrichosity or strongly reduced. Postpronotum white. Anepisternum brown, with white band occupying posterodorsal part, its ventral margin not reaching posteroventral corner; with pale pilosity except for few darker setulae in posteroventral corner; one anepisternal seta. Anatergite and katatergite white. Scutellum white. Subscutellum brown. Legs pale yellow, femora darker coloured, from dark yellow to brown.

Wing ( Figure 2F View Figure 2 ). Wing bands brown, well developed. Basal part of wing brown, subbasal irregular spots and streaks present. Anterior apical band completely filling cells r 1 and r. Posterior apical band touching anterior apical band. Subapical band isolated. Discal band reaching posterior wing margin; touching anterior apical band near pterostigma; well separated from subbasal spots and streaks, at least in cell cu 1. R-M ratio 0.84–1.00.

2+3

Abdomen. Shining dark brown, posterior 1/4 to 2/3 of tergites 2 and 4 with greyish band, anteriorly more orange; tergite 5 with median orange-brown line.

Body length. 3.40–5.40 mm; wing length 3.80–5.05 mm.

Female. As male. Female terminalia, oviscape about as long as or slightly longer than abdominal tergites, shining brown, with black pilosity. Aculeus ( Figure 3H View Figure 3 ) about 15 times longer than wide; aculeus tip ( Figure 4J View Figure 4 ) narrow, simply pointed.

Material examined

Syntypes. UGANDA, Entebbe , 13, 15.XI.1909; 2♀♀, 24.XI.1909, all C.C. Gowdey ( BMNH) .

Other material examined. CAMEROON: 13, Bendiba, Betare-Oya, 19–22.VII.1949, B. Malkin (CAS via TAU); 1♀, Douala, 5.VII.1974, J.A.W. Lukas (coll. van Aarsten via TAU); 1♀, SW Province, Bakingili, 1–13.VIII.1984, J. Rawlins and R. Davidson (Carnegie Museum via TAU). CONGO (D.R.): 13, Lubumbashi, September 1959, Ch. Seydel, light trap (KMMA); 13, Lwiro river, 47km N Bukavu, 1950m, 15.12.1957, E.S. Ross and R.E. Leech (CAS via TAU). ETHIOPIA: “S. Abyssinia”, R.J. Stordy (BMNH). KENYA: Eastern Province, Kirimiri Forest (S0°25′38″ E37°32′43″), 13, 23.I.2002, R.S. Copeland, ICIPE-USDA project nr 1690, ex fruit Agelanthus sp. (KMMA); 13 2♀♀, 21.I.2003, R.S. Copeland, ICIPE-USDA project nr 2383, ex fruit Agelanthus sansibarensis ; 13, Rift Valley, Koru/Brooks (S0°7′20″ E35°15′34″), 10.IX.2003, R.S. Copeland, ICIPE-USDA project nr 2244, ex fruits Phragmanthera usuiensis (KMMA) ; 13, W. Pokot, Chepareria, 4–5.XI.1983, A. Freidberg (TAU); 1♀, Kakamega Forest, 20–21.XI.1986, A. Freidberg (TAU); 13, 30km N Kakamega (forest), 23.XI.1986, A. Freidberg (TAU). NIGERIA: 1♀, Samaru, 18–25.V.1970, mercury vapour light trap, R.H. Ward (BMNH). TANZA- NIA: 13, Same, 8.IX.1996, A. Freidberg (TAU). UGANDA: Entebbe, 1♀, 24.VI.1909 (USNM); 233 4♀♀ 1 not sexed, 9–10.II.1910, C.C. Gowdey (BMNH); 1♀, 13.XII.1934, F.W. Edwards (BMNH); 233, Masaka Dist., Kako, January 1968, Loranthus fruit (TAU); 13 1♀, Mango distr., Kaazi, 14.I.1967, ex Ficus fruit (TAU). ZIMBABWE: 13, Bulawayo, 1.V.1927, R.H.R. Stevenson (NMSA).

Tentantively placed here: CONGO BRAZZAVILLE: 1♀, Brazzaville, 26.II.1986, A. Delobel ( TAU) . KENYA: 1♀, Uplands, 15.I.1996, I. Yarom and A. Freidberg ( TAU) ; UGANDA: 13 1♀, Kawanda, 17.VI.1969, A.I. Mohyuddin ( BMNH) .

Distribution

Cameroon, Congo (D. R.), Ethiopia, Kenya, Nigeria, Tanzania, Uganda and Zimbabwe. Probably also found in Congo (Brazzaville) (cf. material examined).

Hosts

Recorded from Agelanthus sansibarensis , Loranthus sp. and Phragmanthera usuiensis (Oliv.) M.G. Gilbert (all Loranthaceae ). Also one specimen apparently from Ficus although this record is questionable (see also under P. formosula ).

Comments

This is the most abundant and widespread species within the genus. Wing banding is slightly variable in this species, especially regarding separation of discal band from subbasal streaks. However, all specimens with slightly deviant wing banding (those listed as tentatively placed here) are grouped under P. pulchella since no additional characters could be found to separate them from the others.