Euscelidia marion ( Walker, 1849 )

Dikow, Torsten, 2003, Revision of the genus Euscelidia Westwood, 1850 (Diptera: Asilidae: Leptogastrinae), African Invertebrates 44 (2), pp. 1-131 : 81-83

Euscelidia marion ( Walker, 1849)

Figs 47 , 48A–E

Leptogaster marion Walker, 1849: 484 ; Hull 1962: 300.

Euscelidia marion, Martin 1965: 112 ; Oldroyd 1975: 100; Joseph & Parui 1983: 278 1990: 10 1998: 18.

Diagnosis: The species is distinguished from congeners by the predominantly apruinose sct, the densely arranged microtrichia on the wings, and the grey and brown pattern of pruinosity on the abdominal tergites.

Redescription: Head: Black; fc yellow pruinose, fc gib indistinct, mystax white, many macrosetae; oc tr white pruinose dorsally; occ silver pruinose, setae white; Antennae - scp brown, white setae ventrally; ped brown, white or brown setae ventrally and dorsally, white pruinose; pped brown, white pruinose; apsel hyaline; Thorax: Black; sct predominantly apruinose, margins silver pruinose, many white and yellow setae scattered on surface, macrosetae: black, 1 npl s, 1 spal s; sctl silver pruinose, ds sctl s and sctl s long, yellow; Legs - yellow to brown; pro and meso fem yellow proximally, brown distad, meta fem pale yellow proximally, distal half clubbed, brown and orange; pro and meso tib brown, yellow stripe anteriorly, meta tib yellow proximally, remaining part brown, pale yellow stripe not reaching tip anteriorly; emp minute; Wings - densely covered with microtrichia, cell c, sc, proximal half of r 1, and br dark brown, remaining cells light brown; ptero distinct, brown; cell d terminating in 2 veins; hlt yellow; Abdomen: Brown; T predominantly brown pruinose, anterior and posterior margins grey pruinose, T1 with black setae, T 2 in proximal half with white setae laterally, remaining T with white or brown setae, S grey pruinose; ơ terminalia Figs 48A–E - sur pointed distally, lobe ventrally; hypd bent upwards; d aed shea short, lat pr aed extending gonp; lat apod simple.

Type material - The lectotype of undeterminable gender, here designated to preserve stability and make more universal the use of this name, is labelled ‘Type (circular label with green submarginal border) / Leptogaster marion Walk. (handwritten) One of Walker’s series so named Edw. (on backside of label) / India N. Bengal cx. Coll. Miss Campbell 42 25 (handwritten) / 42 25 (handwritten) N Bengal (handwritten on backside of circular label) / Holotype Leptogaster marion Walker det. J.E. Chainey 1982 (handwritten) Holotype (circular label with red border, attached to the other label) / LECTOTYPE Leptogaster marion Walker, 1849 by T. Dikow 2001 (red label)’. The specimen is double mounted (minuten in rectangular piece of plastic), is in poor condition (antennae, right pro and meta legs, and left meta leg broken, sct cracked, abdomen broken from the third segment), and is deposited in the BMNH.

A B C

D E F

G H I

Type locality and distribution ( Fig. 47 ): India , North Bengal , no exact locality data. India, Sri Lanka .

Material examined: INDIA: 1^ Hadagali, 16 49'N 75 56'E, x.1911 ; 1ơ 1? Taliparamba , 1201'N 75 21'E, 24–30.ix.1913 ; 1 ^ Coimbatore , 1101'N 76 55'E, 23–26.ix.1938 ; SRI LANKA: 1ơ 1? Mankulam , 9 07'N 80 26'E, 14.ii.1962 ; 2ơơ Parayan Kulan , 8 56'N 8000'E, 20-25.iii.1970, 10.iv.1981 ; 1 ơ 1? Tiriyai , 852'N 81 00'E, 29.iii.1891 ; 7^^ 13ơơ Padaviya Tank , 8 48'N 80 45'E, 18-19.v., 20-21.v.1976, 11-14.x.1977, 20- 23.vii.1978 ; 2^^ 3ơơ 1? Paraiyanalankulan , 8 46'N 80 10'E, 15.ii.1962 ; 1^ Kondachchi , 843'N 79 58'E, 20.ix.1979 ; 2 ^^ Nilaveli , 841'N 81 11'E, 30.iii.1891 ; 1^ Pankulam , 838'N 81 01'E, 13.iii.1891 ; 2^^ 2ơơ Marichchukkaddi , 835'N 79 56'E, 26.i.1976 ; 4^^ Trincomalee , 834'N 81 13'E, 17.iii.1892, 9–10.ii.1962 ; 15^^ 15ơơ China Bay , Trincomalee, 833'N 81 12'E, 13-17.v., 16-17.v.1976 , 27- 31.i., 8-11.x.1977, 26.ii.1979; 1^ 7ơơ 1? Wilpattu National Park , 825'N 80 00'E, 12- 14.vi.1975, 21-25.v.1976, 22-23.i.1977, 15-16.ii.1979 ; 2^^ 4ơơ Hunuwilagama , 818'N 80 08'E, 10-19.iii.1970 , 22-26.v., 28.x.-3.xi.1976; 1ơ Ritigala Nature Reserve , 807'N 80 39'E, 24-25.ii.1979 ; 4 ^^ 2ơơ 1? Puttalam , 802'N 79 49'E, 1.ii.1962 ; 1 ơ

Kibissa, 7 56'N 80 43'E, 28.vi.-4.vii.1978; 1? Maha Oya, 7 32'N 81 21'E, 1.v.1980; 1^ 2ơơ Hassalaka, 7 20'N 80 57'E, 16-19.ii.1977; 1ơ Kandy, 7 17'N 80 38'E, 26- 30.vii.1978; 1^ 1ơ Ekgal Aru Tank, 7 10'N 81 36'E, 9-11.vi.1976, 19-23.ii.1977; 1^ Colombo, 6 55'N 79 51'E, ix.1903; 1^ 1ơ Kalumullanda, 6 51'N 80 52'E, 3.iii.1962; 2^^ 1ơ Haldamulla, 6 46'N 80 52'E, 13.vi.1892; 1? Bandarawela, 6 49'N 80 58'E, 7.vi.1892; 1ơ Uda Walawe, 6 28'N 80 53'E, 1.viii.1973; 1^ Mau Aru, 6 19'N 80 55'E, 17-19.vi.1978; 1ơ Hambantota, 6 07'N 81 07'E, 28.x.1970; 1^ 2ơơ Periakulam, 23.ii., 1.iii., 5.iv.1891; 4?? Mahaganay, 17.i., 8+ 15.ii.1892; 1^ Iala, 9.ii.1909; 5ơơ 2?? Klinochchi, 24-27.i.1977; COUNTRY UNKNOWN: 1^ locality data not readable. Depository: BMNH, MZLU, USNM.

Figures

Fig. 47. Distribution. Euscelidia abbreviata sp. n., squares; E. glabra sp. n., star; E. marion, circles.

Fig. 48. ơ terminalia. A–E. Euscelidia marion. A. Dorsal. B. Ventral. C. Lateral. D. Aedeagus lateral. E. Aedeagus dorsal. F–I. E. moyoensis. F. Aedeagus lateral. G. Dorsal. H. Ventral. I. Lateral. Scale line = 1 mm.