Phasia multisetosa ( Villeneuve, 1923 ) Sun & Marshall, 2003

Sun, Xuekui & Marshall, Stephen A., 2003, Systematics of Phasia Latreille (Diptera: Tachinidae), Zootaxa 276 (1), pp. 1-320 : 177-178

3.6.11 Phasia multisetosa ( Villeneuve, 1923) , comb. nov.

(Figures I­37, II­8.3)

Allophora multisetosa Villeneuve, 1923: 81 .

Alophora multisetosa : ­ Emden 1945: 432 (revision).

Alophora (Alophorella) multisetosa : ­ Crosskey 1980: 824 (catalog).

DESCRIPTION

Body length: 7­8 mm.

MALE: HEAD. Head compressed anteriorly. Eyes separated by a distance 0.5 times as wide as ocellar triangle. Fronto­orbital plate black, yellowish grey pruinose, 2­3 rows of hairs laterally. Frontal vitta brown, divergent. Frontal vitta at base of antennae 1.8 times as wide as fronto­orbital plate anteriorly. Ocellar setae present but fine; outer vertical setae absent; inner vertical setae absent. Face brown, grey pruinose. Parafacial brown, grey pruinose, bare, 1.1 times as wide as first flagellomere. Lower margin of face projecting, visible in profile, orange yellow; yellowish grey pruinose. Vibrissa well differentiated; intervibrissal distance as long as distance between vibrissa and eye on same side; facial ridge with bristles on lower 1/4. Gena brown, grey pruinose; hairs white; height 0.11 times eye height. Lunule normal; sublunular bulla indistinct. Antenna pedicel yellow or brown; first flagellomere black, 1.3 times as long as pedicel; arista thickened on basal 0.3. Length of oral opening 2.1­2.2 times its width. Occiput flattened, white pruinose; hairs white. Palpus brown.

THORAX. Mesoscutum very thinly grey pruinose, without black longitudinal vitta, with fine black hairs. 0+1 acrostichal seta; 0+1 dorsocentral seta; 1 postpronotal seta; presutural supra­alar seta absent; 0 postsutural intra­alar seta; 2­3 notopleural setae; 1 supraalar seta; 2 postalar setae. Pleuron thinly grey pruinose; hairs black and brown. Anepimeral setae medium size, black; 2­7 katepisternal setae; 6­8 meral setae. Scutellum brown; thinly grey pruinose, with two pairs of marginal setae; apical setae present and distinct; discal setae randomly arranged, not in rows. Subscutellum not very prominent. WING. Lower calypter hyaline white. Wing base without scale­like setae. Tegula black. Basicosta yellow. Wing pictured, narrow or broad; petiole of apical cell 0.24 times as long as preceding section of R 4+5; M meeting R 4+5 almost at right angle. Halter brown. LEGS. Fore femur brown; ventrally and laterally with whitish yellow hairs, dorsal surface with black hairs. Fore tibia brown, without bristles, apically with 1 v, 1 pv and 1 d. Fore tarus brown. Fore claws brown, apex black, 1.1 times as long as fifth tarsomere. Pulvilli brown. Mid femur brown, ventrally and laterally with whitish yellow hairs, dorsal surface with black hairs. Mid tibia brown, with 1 ad and 1 v, apically with 1 ad, 1 pv, 1 v and 1 d. Hind femur brown, ventrally and laterally with whitish yellow hairs, dorsal surface with black hairs. Hind tibia brown, with 4 ad and 3­4 pd.

ABDOMEN. Abdominal tergites yellow, but tergites IV, V sometime black; pruinosity absent; longitudinal vitta absent. Relative length of abdominal tergites I+II:III:IV:V = 1.2:1:1:1; relative width I+II:III:IV:V = 0.4:1:1:0.8. Hair spots indistinct. TERMINALIA. Syncercus slender, not notched posteriorly, apex bent ventrally. Surstylus longer than cercus, flattened dorsoventrally. Ejaculatory small, knob­like. Hypandrium broad, as long as phallapodeme. Pregonite reduced, even, haired ventrally. Postgonite well­developed, haired ventrally, apex almost rounded. Phallus broad, long, haired dorsally. Distiphallus membranous.

FEMALE: Eyes touching. Wing pictured. Anterior spine­like setae of hind tibia absent. Sternite VII (sheath) longer than sternite VI, pointed apically, bent, apex directed dorsally, smooth ventrally. Ovipositor bent upward.

TYPE MATERIAL

Holotype ♀, NIGERIA, Ibadan, 12.9.1922 (BMNH, examined).

OTHER MATERIAL EXAMINED

ZIMBABWE: Umtali District, 23.ix.1931, P.A. Sheppard (1♂, AMNH). TANZANIA: Tanganyika, Ilonga, ix­xi.1954, host: Dysdercus sp. P.T. Walker (1♂ 1♀, BMNH).

HOSTS

Dysdercus superstitiosus F. ( Hemiptera , Pyrrhocoridae ): ­ Nigeria ( Emden 1945: 432). Dysdercus sp. ( Hemiptera , Pyrrhocoridae ): ­ Tanzania (new record).

NOTES

According to Emden (1945: 432), the type specimen was reared from Dysdercus superstitiosus F. by A.W.J. Pomeroy, but there is no such host label with the type.