ECOLOGICAL AND BEHAVIOR NOTES 

 ON MISSOURI INSECTS. 



Phil Rau. 



The notes on the ecology and behavior of Missouri 

 insects, spiders and rayriapods here presented were made 

 in the vicinity of St. Louis during the past few years. 

 The region comprises an area of about forty miles west 

 and thirty miles south of St. Louis. There are two ex- 

 ceptions, however; some dozen notes bear the locality of 

 Wesco, Mo., which is one hundred miles south-west of 

 St. Louis, and a few are from Lake View, Kansas. Wher- 

 ever no location is mentioned, the observation was made 

 at St. Louis or its immediate environs. 



The order in which the species are generally arranged 

 is as follows : Hymenoptera, according to Hymenoptera 

 of Conneticut.* Coleoptera, according to Blatchley, 

 Coleoptera of Indiana, 1910. In the orders of Diptera, 

 Orthoptera, Lepidoptera, etc., the species observed are 

 80 few that no taxonomic arrangement is followed. 



All of the material has been indentified by expert ento- 

 mologists whose names appear in brackets along with the 

 specific name of the insect. I wish here to extend to 

 these gentlemen my thanks for their kindness in naming 

 the material. 



Wasps 



Scolia hicincta Fab. [S. A. Rohwer]. This wasp was 

 seen at Wickes, Mo., feeding on the flowers of smartweed 

 and buck-brush in late August, and on goldenrod on 

 September 15. 



Scolia duhia Say. We record in Wasp Studies Afield 

 having found Scolia dubia for two successive seasons, 

 flying about the manure heaps near a bam, and really 

 conspicuous by their absence elsewhere in the large field 



*State Geol. and Nat. Hi&t. Surv. Bull. 22, 1916. 



