TABLE OF CONTENTS. 



Page. 



IiitrodiK'tion ^ "^ 



1. Two Euniciiidae. 



A. Oilyiu'ius dorsalis 'J 



B. Oilyncrus arvensis '■' 



II. Amir.ophila procora ^1 



III. Benibex texaiuis and Miciobembex monodonta 21 



IV. Some Fly-catc)icis. 



A. Monedula Carolina, the Big Fly-catcher 27 



B. Noles on the Stinging Habits of Tachysph x texanus, 



Benibex texanus and Notoglossa (Oxybelus aniericana 29 

 V. The Bug-Hunters. 



A. Benibrx belfraegi, the Big Bug-hunter 32 



B. Bcnibidula parata and Bembiduhi pictifrons 315 



C. Hoplisoides. sp? 3!) 



D. Alyson nielleus 41 



E. Hhopaluni (Crabro) abdominale 43 



VI. Agenia, the Anipiitator of Spider's Legs. 



A. Agenia, sp. nov., and Agenia accepta. Two Diggers 43 



B. Agenia subeorticalis and Agenia niellipes. Two Architects 4S 

 VII. Some Oth(r Spider-ravishers. 



A. Pompilus marginatus 52 



B. Pompilogasler fuscipcnnis 54 



C. Pompilid That Does Not Bury Its Prey 54 



1). [Miscophus, sp? -" 55 



VFII. Trypoxy]on texens", a Pet of the Household 57 



IX. Some Enemies of the Orthoptera. 



A. Larra americana and Her Crickets 01 



B. Priononyx Tliomae, a Locust-killer 02 



X. Experiment on the Sense of Direction of Cerceris fumipennis.... 60 



Summary and Conclusions 07 



List of Illustrations ; ~'^ 



