1929] 
Classification of the Psocidae 
325 
3. Radius (near base of radial fork) connected a second 
time to the media, thus forming two closed cells near 
middle of wing Thyrosophorinx 
Radius connected but once to media, and thus form- 
ing but one closed cell near middle of wing Psocinx 
Calopsocinx 
Hind edge of head sharp; venation partly netted 
Calopsocini 
Hind edge of head rounded; venation not netted 
Ptiloneurini 
Cxcilinx 
1. Stigma veined, no cubital fork N e r urostigmini 
Stigma not veined 2 
2. No cubital fork Peripsocini 
Cubital fork present 3 
3. Tarsi 2 jointed 4 
Tarsi 3 jointed, head broad at eyes Mesopsocini 
4. Hind edge of head rounded Cxcilini 
Hind edge of head sharp Dypsocini 
Psocinx 
1. A cross-vein between stigma and radius Stenopsociw 
No such cross-vein 2 
2. Tarsi 3 jointed Myopsocini 
Tarsi 2 jointed Psocinx 
Thyrsophorinx 
The few genera here do not require tribes. 
