Chorebus (Phaenolexis) selene Nixon 1937
Creators: name: Zheng, Min-Lin
name: Chen, Jia-Hua
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Chorebus
Chorebus selene

description: ChorebuS (PhaenolexiS) Selene (Nixon), 1937
(Figure 2 A–G)
Dacnusa selene Nixon, 1937, 4: 24, 1944, 80: 149; Shenefelt, 1974: 1097.
Chorebus (Phaenolexis) selene: Tobias & Jakimavicius, 1986: 7 –231; Tobias, 1998: 390.
Material examined. 3 females and 2 males, Guide County, Qinghai Province, China, 17.vii.2008, coll. Qiong Zhao.
Description. Female. Body 4.5 mm long.
Head. Antenna with 39 flagellomeres; first and penultimate flagellomeres 3.0× and 2.0× as long as wide, respectively. In dorsal view, head 1.6× as broad as long. Occipital sparsely pubescent. Temple somewhat swollen. Eye 0.8× as long as temple. Ocellus small, OOL:OD:POL=25:6:5. Face 1.6× as wide as high, somewhat protruding, with many fine setae and weakly punctate. Clypeus 1.8× as wide as high, densely pubescent. Mandible (Fig. 2 C) with 4 teeth; first tooth very strongly expanded dorsally; second tooth forming an equilateral triangle, with tip pointed; third and fourth tooth relatively short. Maxillary palp long, distinctly exceeding the median point between fore and mid coxae.
Mesosoma. Mesosoma 1.7× as long as high. Propleuron densely pubescent. Sides of pronotum densely pubescent and strongly rugose. Mesoscutum (Fig. 2 D) mostly covered with dense pubescence (sparsely pubescent on posterior half of its lateral lobe); notaulus extending to posterior part of mesoscutum, though mostly quite shallow; medio-posterior depression narrow, 0.3× as long as mesoscutum. Precoxal sulcus wide and long, strongly crenulate. Metanotum densely pubescent. Propodeum densely pubescent and with a median longitudinal carina extending posteriorly to its half. Metapleuron (Fig. 2 F) with dense white pubescence forming a rosette around a rugose swelling on its lower half.
Wings. Pterostigma 1.1× as long as vein 1-R1, 1.2× as long vein r. Posterior half of vein 3-SR+SR1 relatively straight. Subdiscal cell closed (Fig. 2 G).
Legs. Hind femur 4.3× as long as broad. Hind tibia slightly shorter than hind tarsus. Second tarsomere of hind tarsus 0.5× as long as hind basitarsus, hind telotarsus slightly shorter than third tarsomere of hind tarsus.
Metasoma. First tergite (Fig. 2 E) 2.8× as long as its apical width, posteriorly and very slightly widened before spiracles, parallel-sided beyond spiracles, very sparsely pubescent, and strongly irregularly striated. Second-fourth tergites smooth and sparsely setose. Fifth and following tergites blade-like and compressed. Ovipositor distinctly projecting beyond the apical tergite in the retracted position; ovipositor sheath quite slender, almost as long as hind basitarsus.
Colour. Head mostly black; antenna mostly brown, scapus and pedicellus yellow, first to third flagellomeres brownish-yellow; mandible yellowish-brown except edge of teeth dark reddish-brown; clypeus dark reddishbrown; labrum yellow; maxillary and labial palp pale yellow. Mesosoma black; legs mostly yellow except most area of hind femur, apical part of hind tibia and tarsi reddish-brown. First metasomal tergite black; remaining tergites dark reddish-brown; ovipositor sheath black.
Variation. Body length 4.3–4.5 mm; antenna with 37–39 flagellomeres.
Male. Similar to female, but tergites not blade-like and compressed. Body length 3.8–4.2 mm, antenna with 46–47 flagellomeres.
Biology: Unknown.
Distribution. China (Northwest Palaearctic, first record), Macedonia, Russia, Ukraine Yugoslavia, and United Kingdom.
Remarks. Chorebus (Phaenolexis) selene has been mostly recorded in Europe with only one record outside Europe (Russia-Primor'ye Kray) before this new record. Species in the Chorebus senilis s.l. Griffth group are included in subgenus Phaenolexis (Tobias et al. 1986).
description: Published as part of Zheng, Min-Lin & Chen, Jia-Hua, 2017, The dacnusine genus Chorebus Haliday (Hymenoptera: Braconidae: Alysiinae) from China, pp. 170-180 in Zootaxa 4294 (2) on pages 173-175, DOI: 10.11646/zootaxa.4294.2.2, http://zenodo.org/record/831772