16. Anteon brachycerum (Dalman, 1823)

(Plate 20D, E)

Dryinus brachycerus Dalman 1823: 12.

Dryinus lyde Walker 1837: 427 (synonymized by Richards 1939); type locality: England (UK).

Anteon nigricornis Kieffer in Kieffer & Marshall 1905: 172 (synonymized by Richards 1939); type locality: Eccles (Scotland, UK).

Anteon triareolatus Kieffer in Kieffer & Marshall 1905: 175 (synonymized by Richards 1939); type locality: Bonar Bridge (Scotland, UK).

Anteon brevicollis Kieffer in Kieffer & Marshall 1905: 176 (synonymized by Richards 1939); type locality: Bonar Bridge (Scotland, UK).

Anteon flavitarsis Kieffer in Kieffer & Marshall 1905: 176 (synonymized by Richards 1939); type locality: Clober (Scotland, UK).

Anteon indivisus Kieffer in Kieffer & Marshall 1905: 199 (synonymized by Richards 1939); type locality: Bishopton (Scotland, UK).

Anteon nigroclavatus Kieffer in Kieffer & Marshall 1905: 205 (synonymized by Richards 1939); type locality: Kilsyth (Scotland, UK); Cameron 1907: 33.

Anteon curvatus Kieffer in Kieffer & Marshall 1906: 517 (synonymized by Richards 1939); type locality: Sutherland (Scotland, UK).

Anteon obscuricornis Kieffer in Kieffer & Marshall 1906: 523 (synonymized by Richards 1939); type locality: Eccles (Scotland, UK); Richards 1935: 151.

Anteon brachycerus (Dalman): Kieffer 1907: 25.

Antaeon suffolciensis Chitty 1908: 144 (synonymized by Richards 1939); type locality: Felden (England, UK).

Anteon curvus Kieffer 1914b: 155 (synonymized by Richards 1939); type locality: Sutherland (Scotland, UK).

Anteon neglectus var. suffolciensis (Chitty): Kieffer 1914b: 162.

Anteon lyde (Walker): Richards 1935: 151.

Anteon indivisum Kieffer: Richards 1935: 151.

Anteon brachycerum (Dalman): Richards 1939: 250; J. Perkins 1976: 16; Ponomarenko 1978: 18; Olmi 1984: 300; Nilsson 1986: 89; Pauly & Olmi 1988: 16; Olmi 1993c: 407; Olmi 1994: 51; Hansen & Olmi 1996: 84; Guglielmino & Olmi 1997: 211; Tussac & Olmi 1998: 485; Olmi 1999a: 114; Olmi & De Rond 2001: 115.

Description of Female. Fully winged; length 2.3–3.3 mm. Head black, except mandible testaceous; antenna black; mesosoma and metasoma black; legs brown, except tarsi and articulations testaceous. Antenna short, clavate, with segment 1 approximately twice as long as 4; antennal segments in following proportions: 12.6:5:4.5:4.5:4.5:4:4:4:7. Head dull, smooth, granulated; frontal line absent; occipital carina complete; POL = 6; OL = 3; OOL = 7; OPL = 2.5; TL = 4; greatest breadth of posterior ocelli about as long as OL. Pronotum short, with posterior surface shiny, smooth, unsculptured, much shorter than scutum (3:18); pronotal tubercle reaching tegula. Scutum shiny, smooth, punctate. Notauli incomplete, reaching approximately 0.4–0.5 length of scutum. Scutellum and metanotum shiny, smooth, unsculptured. Propodeum reticulate rugose, with strong transverse keel between dorsal and posterior surface; posterior surface with two longitudinal keels and median area very shiny, almost completely smooth and slightly rugose. Fore wing hyaline, without dark transverse bands; distal part of stigmal vein shorter than proximal part. Segment 1 of protarsus much longer than segment 4; segment 3 of protarsus produced into hook. Enlarged claw (Plate 20D) with proximal prominence bearing one long bristle. Segment 5 of protarsus (Plate 20D) with 10–13 bristles; distal apex with about four lamellae. Tibial spurs 1/1/2.

Description of Male. Fully winged; length 2.3–3.3 mm. Head black, except mandible testaceous; antenna brown; mesosoma and metasoma black; legs completely brown, or with tarsi and articulations testaceous. Antenna filiform; antennal segments of specimen from Czech Republic, near Prachatice, in following proportions: 10:5.5:7:8:8:8:8:7:7:11. Head dull, smooth, granulated; frontal line absent; occipital carina complete; head of specimen from Czech Republic, near Prachatice, with POL = 6; OL = 3.5; OOL = 6; OPL = 2; TL = 4; greatest breadth of posterior ocelli longer than OPL (3:2). Scutum shiny, smooth, punctate. Notauli incomplete, reaching approximately 0.5 length of scutum. Scutellum and metanotum shiny, smooth, unsculptured. Propodeum reticulate rugose, with strong transverse keel between dorsal and posterior surface; posterior surface with two longitudinal keels and median area very shiny, smooth. Fore wing hyaline, without dark transverse bands; distal part of stigmal vein shorter than proximal part. Paramere (Plate 20E) with distal inner process, without proximal membranous process. Tibial spurs 1/1/2.

Material examined. Types: ♂ lectotype (designated by Móczár, 1967) of D. brachycerus: SWEDEN: Småland (NRS); ♂ holotype of A. suffolciensis: UK: Herts, near Boxmoor, Felden, A. Piffard leg. (BMNH); ♀ holotype of A. nigricornis (=A. obscuricornis): UK: Scotland, Dumfries, Eccles, P. Cameron leg. (BMNH); ♂ lectotype (designated by Olmi, 1984) of A. lyde: UK: England (BMNH); ♀ holotype of A. triareolatus: UK: Scotland, Sutherland South, Bonar Bridge, P. Cameron leg. (BMNH); ♀ holotype of A. brevicollis: UK: Scotland, Sutherland South, Bonar Bridge, P. Cameron leg. (BMNH); ♀ holotype of A. flavitarsis: UK: Scotland, Clober, P. Cameron leg. (BMNH); ♂ holotype of A. indivisus: UK: Scotland, Renfrew, Bishopton, P. Cameron leg. (BMNH); ♂ lectotype (designated by Olmi, 1984) of A. nigroclavatus: UK: Scotland, Kilsyth, P. Cameron leg. (BMNH); ♂ holotype of A. curvatus (=A. curvus): UK: Scotland, Sutherland, P. Cameron leg. (BMNH). Paratypes: 1♀ paralectotype (designated by Móczár, 1967) of D. brachycerus: SWEDEN: Småland (NRS). Other material. NEPAL: Katmandu, Godavari (CNC).

Hosts. Cicadellidae Macropsinae (Guglielmino & Olmi, 1997): in Russia: Oncopsis flavicollis (L.) ( Ponomarenko, 1978); in United Kingdom: Oncopsis sp. (Perkins, 1976).

Distribution. Sweden (Småland), United Kingdom (Herts, Scotland, England), Nepal (Katmandu). It is known from Austria, Belgium, Czech Republic, Denmark, Esthonia, Finland, France, Germany, Hungary, Ireland, Japan, Netherlands, Norway, Romania, Russia, Sweden, United Kingdom (Olmi, 1999a).