IV 
Introduction 
“Ovipositor not elongate, first valvulae serrate, third valvulae stout, 
devoid of ceriferous areas. Anal segment of female not specialized.” 
The Family Flatidae, consisting of 212 genera with 981 species, is one 
of the larger families of the Fulgoroidea. It may be characterized as follows: 
Size medium to large. Head narrower than thorax; lateral edges of face 
not angular; ocelli two, located outside lateral carinae of frons; antennal 
flagellum not segmented. Mesonotum large, posterior angle not restricted 
by a groove or fine line. Tegmina ample, with a cross-veined costal area and 
a granulate clavus; clavus often open, claval veins separate or joined near 
apex. Hind leg with trochanter pointing ventrad; tibia without a movable 
spur; first tarsomere short or very short; second tarsomere small or very 
small with a spine on each side. Aedeagus with periandrium present. 
The following classification has been adopted for the Flatidae Family. 
This is a modification of the one proposed by Melichar in 1923. 
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Family Flatidae 2 
Subfamily Flatinae 19 
Tribe Phromniini 21 
Tribe Poekillopterini 73 
Tribe Ceryniini 94 
Tribe Sisciini 120 
Tribe Phantiini 129 
Tribe Flatini 142 
Subtribe Scarpantina 143 
Subtribe Flatina 154 
Subtribe Phyllyphantina 180 
Subtribe Lawanina 202 
Subtribe Siphantina 223 
Tribe Nephesini 246 
Subtribe Pseudoflatina 247 
Subtribe Phaedolina 267 
Subtribe Cryptoflatina 268 
Subtribe Nephesina 379 
Tribe Selizini 403 
Subfamily Flatoidinae 465 
The species in this family are world-wide in distribution but are found 
chiefly in the tropical or subtropical regions. Sixty-one of the species in 
the present catalogue have a distribution covering two or more zoogeo- 
graphic regions and eight are from unknown localities. The other species 
are recorded as follows: 20 from the Nearctic Region, 152 from the Carib- 
bean Region, 100 from the Neotropical Region, 178 from the Ethiopian 
Region, 58 from the Palearctic Region, 111 from the Oriental Region, 174 
