17. Genus Haplogonatopus R. Perkins, 1905 .

Haplogonatopus R. Perkins 1905: 39; Chandra 1980: 192; Olmi 1984: 1408; 1993b: 78, 79; 1994: 65; 1995g: 5; 1999: 227; He & Xu 2002: 307; Virla & Olmi 2008: 371; Mita et al. 2012: 50; Xu et al. 2013: 346; Olmi & Virla 2014: 474; Olmi & Xu 2015: 217.

Monogonatopus Richards 1939: 200 (synonymized by Olmi & Currado 1979b); type species: Monogonatopus oratorius (Westwood 1833), by monotypy.

Congodryinus Benoit 1950b: 223 (synonymized by Olmi 1984); type species: Congodryinus katangae Benoit 1950b, by original designation.

Type species. Haplogonatopus apicalis R. Perkins, 1905, by original designation.

Diagnosis. ♀: apterous (Figs 249A, B); palpal formula 2/1; antenna with ADOs; pronotum not crossed by strong transverse furrow or weakly impressed (Fig. 249B); enlarged claw with one large subapical tooth and one row of lamellae (Fig. 248C); tibial spurs 1/0/1. ♂: fully winged (Figs 249C, D); occipital carina usually absent, oc- casionally incomplete, then present behind and shortly on sides of lateral ocelli; occiput concave; temple present; palpal formula 2/1; tibial spurs 1/1/2.

Distribution. Worldwide.

Hosts. Delphacidae (Guglielmino et al. 2013).

World species. Six species are known, one in the Afrotropical region.

Remarks. Larvae of Haplogonatopus were described by Hernandez & Bellotti (1984).