Gonatopus Ljungh, 1810 Gonatopus Ljungh 1810: 161. Dicondylus Haliday in Curtis 1829: 110 (synonymized by Olmi 1993); type species: Dicondylus bicolor (Haliday in Curtis 1828), by subsequent designation of Kieffer (1914). Type species. Gonatopus formicarius Ljungh 1810, by monotypy. Diagnosis. Female: apterous or rarely fully winged; palpal formula 3/2, 4/2, 4/3, 5/2, 5/3, or 6/3; antenna with or without rhinaria; pronotum crossed or not by transverse furrow; enlarged claw with distal apex pointed and with one large or small subapical tooth (occasionally subapical tooth absent, then enlarged claw with distal group of lamellae); in fully winged forms, segment 5 of protarsus with more than 20 lamellae; tibial spurs 1/0/1. Male: fully winged; occipital carina absent or incomplete (in this last case, only present behind and shortly on sides of posterior ocelli); occiput concave; temple present; palpal formula 3/2, 4/2, 4/3, 5/2, 5/3, or 6/3; tibial spurs 1/1/2. Distribution. Worldwide. Hosts. Acanaloniidae, Cicadellidae (except Typhlocybinae, Idiocerinae, Macropsinae), Delphacidae, Flatidae, Issidae, Lophopidae, Tropiduchidae (Guglielmino & Olmi 1997, 2006, 2007; Guglielmino et al. 2013). World species. Actually 441 species are known (Olmi & Virla 2014), 46 from the Australian region. Remarks. Larvae of Gonatopus were described by Ponomarenko (1975), Carcupino et al. (1998), Guglielmino and Virla (1998), Virla and Mangione (2000), Guglielmino (2002), Mangione and Virla (2004), and Guglielmino et al. (2006).

Published as part of Olmi, Massimo, Marletta, Alessandro & Guglielmino, Adalgisa, 2014, Revision of the Australian species of Gonatopus group 5 (Hymenoptera: Dryinidae), with description of a new species from the Society Islands, French Polynesia, pp. 525-546 in Zootaxa 3895 (4) on pages 526-527, DOI: 10.11646/zootaxa.3895.4.4, http://zenodo.org/record/226872