ILLUSTRATIONS 



PLATES 



Revision op the Beetles of the Genus Disonycha Occurring 

 IN America North op Mexico 



By Doris Holmes Blake 



Following pafe 

 1-8. Beetles of the genus Disonycha. 66 



Fossil Plants from the Aspen Shale of Southwestern 



Wyoming 



By Roland W. Brown 

 1-2. Fossil plants from southwestern Wyoming 10 



New Genera and Species of Parasitic Mites of the Super- 

 family Parasitoidea 



By H. E. Ewing 

 1-4. New species of parasitic mites 14 



A Collection of Birds from Great Namaqualand, Southwest 



Africa 



By Herbert Friedmann 



1. Mount Brukkaros from a distance of about 8 miles. Closer view of 



Mount Brukkaros -. 12 



A New Species of Extinct Turtle from the Upper Pliocene 



OF Idaho 



By Charles W. Gilmore 



1-3. Pseudemys idahoensis, new species 7 



Crossochir koelzi: A New Californian Surf-fish of the 

 Family Embiotocidae 



By Carl L. Hubbs 



1. Crossochir koelzi, new genus, new species 9 



Review of the Wasps of the Subfamily Pseninae of North 

 America (Hymenoptera: Aculbata) 



By J. R. Malloch 

 1, 2. Wasps of the subfamily Pseninae 16 



VIII 



