Platyplastinx Enderlein

Platyplastinx Enderlein, 1937:107 (original description), type species: Platyplastinx solox Enderlein, by original designation. Quate 1963:195 (diagnosis).

Quate 1999: 433 (revised description).

Quate & Brown 2004: 66–67 (revised description).

Diagnosis (modified from Quate & Brown (2004)). Male: Eye bridge usually with 4 facet rows, some species with 3, usually separated by 0.3 to 1.5 facet diameters, contiguous in some species; interocular suture present; setae patch of frons undivided; antennae with fourteen fusiform flagellomeres, 14th with cylindrical apiculus; ascoids simple, digitate, paired, approximately 2 times the length of the flagellomeres bearing them; thorax without allurement organs; wings with infuscate patterns, usually with dark spots at the apices and bases of some veins; forks basal to wing center; R5 ending at wing tip; aedeagus asymmetrical, except in the new species P. exiguus; single paramere having various shapes; epandrium with single foramen; cerci with 2 types of tenacula; usually one, but some species with 3, 12 or 15, elongated principal tenacula with fimbriate, feathered or clavate apices; another group of 2 to 20 rod-like accessory tenacula with striated or fringed apices in some species; elongate principal tenacula 2 to 8 times longer than rod-like accessory tenacula.

Female. For a diagnosis of the females see Quate & Brown (2004).

Comments. The most distinguishing features of Platyplastinx species include the presence of two types of tenacula on the male cerci and the absence of apical lobes on the hypogynium of the female (the subgenital plate of Quate & Brown 2004).