Eudorylas excisus (Hardy, 1949)

FÖLDVÁRI, MIHÁLY, 2013, Taxonomic revision of the Afrotropical species of the tribe Eudorylini (Diptera, Pipunculidae), Zootaxa 3656 (1), pp. 1-121 : 58-61

Eudorylas excisus (Hardy, 1949)

( Figs 19G–M , 39G–H, V )

Dorilas (Eudorylas) excisus Hardy 1949 a: 32 .

Dorilas (Eudorylas) definitus Hardy 1961: 134 - syn.: De Meyer and Földvári 2008: 81.

Diagnosis: Surstyli turned ventrally, both with two projections at the end; membranous area large, almost reaching upper edge of ST8. Ventrally on the base of SS and on SES ca. 10 hairs on each side; gonopods asymmetrical, both with ridges; phallic guide with membranous parts at the end covered by microtricha; in lateral view there is a hook pointing towards SS; phallus long, coiled, trifid.

Type material: Malawi: 1♂, 1♀, HT, AT [on the same supporting pin], 5.4.16., Ruo Nyasaland , R.C. Wood, 493, Pres by Com. Inst. Ent., BM 1953-357. ( BMNH) . Democratic Republic of Congo: 1♂ [HT of E. definitus ], Congo belge, P.N.G., Miss[ion] H. De Saeger, I/a/3, 7-ii-1950; Réc. H. De Saeger 199 ; 1♀ [AT of E. definitus ], Congo belge P.N.G, Miss [ion] H. De Saeger; Inimvua, 20-v-1952, H. De Saeger, 3488 (both MRAC).

Other material examined: Angola: 1♂, (A17), Tundavala, c15 mls NW. Sa da Bandeira, c.6600’, 14°43’S 13°28’E, 3.iii.1972, southern African exp. BM 1972–1 ( BMNH) . Kenya: 2♂, Karura For., Nairobi , 5500 feet, 9– 13.xii.1970, A.E. Stubbs, B.M. 1972–211 ( BMNH, HNHM) ; 1♂, Ngong Forest Station IV-13-17-1968, Paul Spangler ( USNM) . Mozambique: 2♂, 1♀, Niassa Prov., Cuamba, Farm of the Catholic University of Mozambique , 17-IV/ 2-VI- 2006, 600m, Olmi M. coll. (all MRAC) . Namibia: 1♂, 1♀, West Caprivi Park, Kwando River : Susuwe , 17°45'37''S 23°20'55''E, 28.ix.-02.x.1998, A.H. Kirk-Spriggs, Malaise trap, dry woodland ; 1♀, Rundu district, Simanya, Okavango River , 17°33'17''S 18°32'30''E, 23-24.i.1998, Kirk-Spriggs & Marais, malaise traps, riverine forest (all NMNW) ; Windhoek , 22°34'S 17°05'E, 8.12.1986, coll. Malaise trap, J. Irish ( HNHM) . South Africa: 1♂, Natal, Richards Bay , 24.10.1994, leg. Roy Danielsson ( ZML) ; 1♂, Tsitsikamma N.P., 34°51'17''S 23°53'22''E, 08.iv.1998, A.H. Kirk-Spriggs, sweeping understory veg. in coastal rainforest ( NMNW) ; 1♂, Barberton , 17.5.13., H.K. Munro ; 1♂, Zuurberg Range , north of Addo, E. Cape Prov., 10 April 1961, collectors B. and P. Stuckenberg ; 1♂, Otto’s Bluff, P.M. Burg, 15.X.72, M.E. Irwin ; 1♂, Natal, St. Lucia Nature Res. , 2832AD, 18–20.xii.1981, Londt & Stuckenberg, Coastal bush & forest ; 1♂, Natal Prov., Richmond Dist. Pateni, 30º09’E., 29º56’S.(2930 Cc), Nov.18, 1971; temp. forest, BE Stuckenberg & ME Irwin (all NMSA) ; 4♂, Natal #6, Kube Yini Game Res,. 27º48’S: 32º14’E, 360m, Date : 10–14.i. 1994, Natal Museum Expedition (3 NMSA, 1 HNHM) ; 4♂, Natal Prov., Zululand, 21 mi. S.Ndumu, Game Res. Camp (2732 Aa ), Dec, 1, 1971, ME& BJ Irwin, dry scrub forest; 160ft (3 NMSA, 1 HNHM) . Swaziland: 3♂, #45, 13 km N. of Ngogolo, 26º19’S: 31º38’E, 300m, Date 22–24. iv.1991, J Londt & L Schoeman, Panata Ranch / Bushveld (2 NMSA, 1 HNHM) . Zimbabwe: 1♂, N. Vumba, S. Rhodesia, 25.2.1965, D. Cookson ; 1♂, same data, 25.4.1964 (both NMSA) ; 1♂, Rhodesia: Victoria Falls Nat’l. Park , IV-3-6-1968, Paul Spangler ( USNM) .

Male

Head. Third antennal segment acuminate; yellow-brown (arista dark brown). Face silvery pollinose. Frons, upper part shining black, lower part silvery pollinose; eyes touching for distance equal to 3 times ocellar triangle. Occiput, greyish pollinose.

Thorax. Humeri yellowish brown. Mesonotum (viewed obliquely from front) black with brown pollinosity, somewhat silvery along anterior margin; brown with greyish pollinosity on the side. Scutellum black with faint brownish-grey pollinosity, with 4–6 short and very weakly developed white hairs. Dorsocentral hairs weakly developed. Halter yellow, base brown.

Legs. Trochanters and femora yellow with dark brown ring in the middle 1/3–3/5 of the latter, f3 shining posteroventrally, knees, tibiae yellow. Tarsal segments yellow, last segment brown. Ventroapical row of 0–2 and 4–8 very weakly developed dark spines on first and second femora respectively; no spines on 3rd femur. Subapical (distal) spines on first four tibiae present. No anteromedial hairs on 3rd tibia. Hind trochanter with no hairs or spines on ventral side. Pulvilli shorter than last tarsal segment.

Wing. Fourth costal section 0.6–0.8 times as long as third costal section. Cross-vein R-M beyond 2/5 of discal cell. Pterostigma fully coloured. No hairs on tegula.

Abdomen. Viewed obliquely from front tergites brownish dusted, T1 greyish, hind margins brownish dusted, T3,4 with grey patches laterally, distal half of T5 greyish pollinose, sides greyish pollinose. Hairs dispersed, short and weakly developed. Laterally 1–5 dark spines on first tergite. Postabdomen in dorsal view: T6 (or T7) visible; T5 1.4 times as long as ST8. Genitalia without dissection: middle sized ST8, m.a. as an elongated triangle, EP and SS yellow, otherwise black.

Genitalia. Surstyli turned ventrally, both with two projections at the end; epandrium elongated; ST8 extending to the right, membranous area large, almost reaching upper edge of ST8 ( Fig. 19H ). Ventrally on the base of SS and on SES ca. 10 hairs on each side; gonopods asymmetrical, both with ridges, OG longer; hypandrium with distal part (lobes) turned; phallic guide with membranous parts at the end covered by microtricha; phallus long, coiled, trifid ( Fig. 19K ); ejaculatory apodeme flat, fan-shaped (can be linear); sperm pump simple, flat, with two projections at the end ( Fig. 19J ). In lateral view PG has a hook pointing towards SS; SES present, although connection to GP is no clear; PH with supporting structure ( Fig. 19L ).

Female

As male except for the following characters. Frons, eyes separated, silvery pollinose, except shining black narrow line in the middle. Pulvilli and last tarsal segment (brownish) about the same size; claws 1.5 times as long as pulvilli. No ventroapical spines on femora. Hind trochanter covered with very fine white hairs. Fourth costal section equal to third. Cross-vein R-M almost as far as middle of discal cell. Abdominal T1 is not greyish, sides of tergites in general brownish dusted. Female ovipositor as in Figs 39G–H, V .

Distribution— Angola, Democratic Republic of Congo, Malawi, Kenya, Mozambique, Namibia, South Africa, Swaziland, Zimbabwe.

Figures

FIGURE 19. Male genitalia of Eudorylas encerus (A–F) and E. excisus (G–M).—A: outer surstylus with phallic guide, lateral view, B: dorsal view, C: inner surstylus with epandrial process, lateral view, D: surstyli, dorsal view, E: sperm pump with ejaculatory apodeme, F: ventral view with phallic guide and ejaculatory apodeme (without ST8), G: outer surstylus, lateral view, H: dorsal view, I: inner surstylus, lateral view, J: sperm pump with ejaculatory apodeme, K: phallic guide, gonopods and hypandrium, ventral view, L: phallic guide and phallus lateral view, M: surstyli, dorsal view. Scale bars: 0.1 mm

FIGURE 39. Female ovipositors.—A: Eudorylas liberia, B: Eudorylas setiformis, C: Eudorylas aemulus, D: Eudorylas garambensis, E: Eudorylas remiformis, F: Eudorylas mutillatus (E. eremnoptera), G–H: Eudorylas definitus (E. excisus), I: Eudorylas facetus, J–K: Dasydorylas quasidorsalis, L: Eudorylas amuscarinum, M: Eudorylas abdominalis, N–O: Clistoabdominalis namibiensis sp. nov., P: Eudorylas mutillatus, Q: Eudorylas femoralis sp. nov., R: Eudorylas ghesquierei, S: Dasydorylas okongoensis sp. nov., T–U: Eudorylas angustus, V: Eudorylas excisus. Scale bar: 0.5 mm