Chrysoctonus apterus Mathot

Huber, John T. & Triapitsyn, Serguei, 2015, Redescription of Chrysoctonus and description of Chrysoctonoides (Hymenoptera, Mymaridae), a new genus from the Australian Region, ZooKeys 505, pp. 79-101 : 83-87

Taxon classification Animalia Hymenoptera Mymaridae

Chrysoctonus apterus Mathot Figs 23, 25, 27, 30, 33-34, 35-40

Chrysoctonus apterus Mathot, 1966: 225 (description). Holotype female (IRSNB), on slide (Fig. 33) labelled as follows: 1. "Yangambi, 17.VIII.51 Lit. Forêt Leg. Obutobe". 2. "Dr. H. Debauche det. Chrysoctonus apterus Deb. Holotype ♀".

Diagnosis.

Female. Body length 495-561 (n=8). Funicle 7-segmented, with 2 mps on fl4, fl6, and fl7, and 1 mps on fl5. Vertex uniformly covered with short setae arising at interstices of reticulate sculpture, and anteromedially with a distinct cluster of short setae in a circular area (Fig. 35) where the anterior ocellus would be, if present. Meso soma entirely reticulate (Figs 36, 37) (cf. Mathot 1966), the reticulations strongest on propodeum. Metasoma (Figs 38-40) apparently without spiracle on gt6, with long, apically curled cercal setae and ovipositor distinctly exserted.

Male. Body (Fig. 30) length ~640 (crushed, head detached). Head (Fig. 23) width 160. Antenna (Fig. 25) measurements (length and width, except length only for flagellar segments): scape 130/24, pedicel 45/30, fl1 52, fl2 73, fl3 73, fl4 76, fl5 73, fl6 70, fl7 70, fl8 73, fl9 76, fl10 80, fl11 77; fl6 length/width 4.38; total flagellum length 824. Wing (Fig. 27) measurements: fore wing length/width 722/140, longest marginal setae 321; hind wing length/width 380/15, longest marginal setae 135.

Variation.

One female from Gabon, collected 29.ii.2000, has a one antenna with the funicle 6-segmented (fl3 absent) and another female collected on the same day has one funicle with fl4 and fl5 fused.

Material examined.

CENTRAL AFRICAN REPUBLIC. Sangha-Mbaéré: Parc National Dzanga-Ndoki, 39.6 km 174°S of Lidjombo, 340 m, 2°21'03"N, 16°08'50"E, 20-28.v.2001, B. L. Fisher, sifted litter in rainforest, seasonally flooded riparian, CAS/BLF4146 (3 ♀, CAS, UCRC). GABON. Ogooue-Maritime: Mont Doudou, 24.3 km 307°NW Doussala, 375 m, 2°13'21"S, 10°24'21"E, 29.ii.2000, B. L. Fisher, sifted litter in rainforest, CAS/BLF2122 (6 ♀, CAS, CNC, UCRC); Ré serve de Faune de la Moukalaba-Dou 12.2 km 305°NW Doussala, 110 m, 2° 17°00"S, 10°29'49"E, 24.ii.2000, B. L. Fisher, sifting, litter in rainforest, CAS/BLF2170 (1 ♀, CAS). DEMOCRATIC REPUBLIC OF THE CONGO. Pool: Lesio-Louna Reserve, Iboubikro site, 340 m, 3°16.196'S, 15°28.267'E, 23.vii.2008, M. Sharkey, Y. Braet (1 ♂, UCRC).