Eudorylas sinuosus (Hardy, 1949)

FÖLDVÁRI, MIHÁLY, 2013, Taxonomic revision of the Afrotropical species of the tribe Eudorylini (Diptera, Pipunculidae), Zootaxa 3656 (1), pp. 1-121 : 99-101

Eudorylas sinuosus (Hardy, 1949)

( Figs 34A–G , 40T )

Dorilas (Eudorylas) sinuosus Hardy 1949 a: 56 .

Diagnosis: Large species. Third antennal segment obtuse. Surstyli small compared to postabdomen; epandrium very short; ST8 large, m.a. occupies all of ST8, except upper left angle. SES enlarged, with a wide lobe at the end; phallic guide long, with a groove along median line, tip elongated, pointed (in lateral view with 2 teeth towards SS, the lower with numerous hairs); phallus trifid, extremely long, coiled with supporting structure; ejaculatory apodeme fan shaped; sperm pump with two lateral projections (planes of the two latter parts are turned by 90 degrees). The frons of the female narrows in front of the ocellar triangle, and the pulvilli are as long as the last tarsal segment.

Type material: South Africa: 1♂, HT, Umbilo, Durban , 22. Xi. 1914 [as “1916” in Hardy 1949 a], L. Bevis, Pres. by Inst. Ent. BM 1959-499, [separate label:] 1416 ( BMNH) .

Other material examined: Democratic Republic of Congo: 1♂, Congo-Belge: Mwashia ( Plaine herbeuse), 1 km, Saline 3-v-1939, H.J. Brédo ( KBIN) . Ghana: 1♂, “legm. 26/2/69 OWR” ; 1♀, “legm. 28/2/69 OWR” (both BMNH) . Kenya: 1♂, 3♀, Ngong Foresty Station , 13–18 Jan. 1968, Malaise trap, Krombein & Spangler ( USNM, 1♀ HNHM) . Malawi: 1♂, Mulanje Mnt., Likabula river valley, 28–30.xi.1980 1535 Dc, 1000m Stuckenberg & Londt , Riverine Brachystegia woodland ( NMSA) . South Africa: 1♂, Cape #11, Pirie Forest, Maden Dam, 32º45’S: 27º19’E 500m, Date : 24.ii. 1997, D. Barraclough / S. James, Internal /margins Indig. For .; 1♂, Natal #2, Pietermaritzburg, 29 30’S: 30 26’E 640m, Date : 14.ii.1991, Coll: A.E. Whittington, Darvill Sewage Works ; 1♂, Catal Hluhluwe Res. 2832 Aa, August 1977, 450m, JGH Londt ex Malaise ; 1♂, Natal #10G, Midlands, Howick , 29º29’S: 30º13’E 1060m, Date : 14.iii. 1992, Coll: A.E. Whittington ; 1♂, 1♀, Natal False Bay Park Res., ca 27º58’S: 32º22’E, Sand Forest j. Londt , 23–24.iv. 1988 40m, Mpophomeni Trail area ; 1♀, Natal Mkuzi Game Reserve , ca 140m 8–15.x. 1990, 27º38’20’’S: 32º09’30’’E, Coll. J. G. H. Londt, MV light & Malaise ; 1♀, Natal #7 G, Howick , 7.iv. 1992, 29 28’S: 30 13’E 1060m, domestic lights, Coll: A.E. Whittington ; 1♀, Town Bush Pietermaritzburg, South Africa 29-1-[19]64, B. & P. Stuckenberg ( NMSA) ; 2♂, 1♀, Natal, Ashburton 15km SE of Pietermaritzburg, Feb. 1977 J.G.H. Londt, Malaise in Grassland ( NMSA, 1♂ HNHM) ; 1♂, Natal, Lynnfield Park , 13 km SE Pietermaritzburg, 29º41’S: 30º29’E, Acacia thornveld area, Coll aa.E. Whittington, Date: 3.iv. 1989; 1♀, same data, 27.iii. 1989, Malaise (both HNHM); 1♂, same data, 26.iii. 1989, Malaise; 1♀, same data 28–30.iii. 1989 (both NMSA); 1♂, Elisabethville, Katanga, Dr. M. Bequaert, Janvier 1933, R.I.Sc.N.B. 24.236, coll. M. Bequaert (KBIN) ; 1♂, Natal , Mtubatuba, II-24&25-1968, Paul J. Spangler ( USNM). Tanzania: 2♂, East Usambara , Amani, 1000 m, 3.02.1977, H. Enghoff, O. Lomholdt, O. Martin leg ; 1♂, same data, 2.02.1977 ; 1♂, same data, 4.02 .; 1♂, same data, 5.ii .; 1♂, 1♀, same data, 6.02 .; 1♂, same data, 7.02 .; 1♀, same data, 25.01 .; 1♀, same data, 29.01 .; 1♂, Tanzania , East Usambara Mts. , Amani, Sigi river, 750 m, 15.07.1980, M Stoltze & N Scharff leg (all ZMUC). Zimbabwe: 2♂, Rhodesia , Vistoria Falls Nat’l. Park, IV-3-6-1968, Paul Spangler .

Male

Head. Third antennal segment obtuse; brown. Face silvery shining. Frons, upper part black, lower part silvery pollinose; eyes not touching. Occiput, upper half black, lower half greyish pollinose.

Thorax. Humeri yellow. Mesonotum (viewed obliquely from front) subshining black; greyish pollinose from the side. Scutellum subshining black, with short, pale pollinosity. Dorsocentral hairs very weakly developed. Halter yellow brown, stem darker.

Legs. Trochanters and base of femora black, femora black (f1,2 silvery grey, f3 shining black posteriorly), knees yellowish, tibiae yellow with dark ring in the middle. Tarsal segments yellow-brown, last segment brown. Ventroapical row of 8–10 very short, black spines on first four femora; 4–6 weak spines on 3rd femur (all femora with short whitish hairs on front/back sides). Subapical (distal) spines on first four tibiae missing. No anteromedial hairs on 3rd tibia. Hind trochanter with faint whitish hairs on ventral side. Pulvilli as long as last tarsal segment.

Wing. Fourth costal section as long as third costal section. Cross-vein R-M at 1/3 of discal cell. Pterostigma: distal 4/5 coloured. Hairs on tegula missing.

Abdomen. Viewed obliquely from front tergites subshining black, anterior 1/3 of T2 silver-grey pollinose, sides with greyish pollinose triangles. Hairs relatively dense, whitish. Lateral spines on first tergite: 4–5 dark bristles. Postabdomen in dorsal view: only ST8 visible; T5 0.7–0.8 times as long as ST8. Genitalia without dissection: black, long ST8, large m.a., EP and SS paler.

Genitalia. Surstyli small compared to postabdomen; epandrium very short, especially on the right side; ST8 large, m.a. occupies all of ST8, except upper left angle ( Fig. 34B ). SES enlarged, with a wide lobe at the end; gonopods symmetric, rounded; hypandrium symmetric, narrow, connected to EP; phallic guide long, with a groove along median line ( Fig. 34G ), tip elongated, pointed (in lateral view ( Fig. 34A ) with 2 teeth towards SS, the lower with numerous hairs); phallus trifid, extremely long, coiled (partly drawn), with supporting structure; ejaculatory apodeme fan shaped; sperm pump with two lateral projections (planes of the two latter parts are turned by 90 degrees, Figs 34D, E ).

Female

As male except for the following characters. Frons, eyes separated; silver-grey pollinose except in front of ocellar triangle for length equal to 2 times triangle, also narrowing in front of ocelli. Pulvilli and claws about as long as last tarsal segment (not enlarged). Abdominal tergites greyish pollinose, except distal 1/5 of T2–5, and laterally with grey patches on distal part of tergites. Female ovipositor as in Fig. 40T .

Distribution— Democratic Republic of Congo, Ghana, Kenya, Malawi, South Africa, Tanzania, Zimbabwe.

Figures

FIGURE 34. Male genitalia of Eudorylas sinuosus (A–G).—A: outer surstylus with phallic guide and outer gonopod, lateral view, B: dorsal view, C: inner surstylus, lateral view, D: sperm pump with ejaculatory apodeme, E: sperm pump with ejaculatory apodeme, F: surstyli, dorsal view, G: ventral view with phallic guide, phallus and highly modified subepandrial sclerite (without ST8). Scale bars: 0.1 mm

FIGURE 40. Female ovipositors.—A–B: Eudorylas aethiopicus, C–D: Eudorylas bredoi, E: Clistoabdominalis lomholdti, F: Clistoabdominalis nitidifrons, G: Eudorylas falcatus, H–I: Eudorylas flexus, J: Clistoabdominalis crassus, K: Eudorylas setiformis, L: Clistoabdominalis lomholdti, M: Dasydorylas sordidatus, N–O: Eudorylas mikenensis, P–Q: Eudorylas decorus, R–S: Eudorylas galeatus, T: Eudorylas sinuosus, U: Eudorylas wittei, V–W: Dasydorylas evanidus. Scale bar: 0.5 mm