CLARENCE E. MICKEL 399 



NEW SPECIES OF HYMENOPTERA OF THE SUPER- 

 FAMILY SPHECOIDEA 



BY CLARENCE E. MICKEL 



Lincoln, Nebraska 



It has been the privilege of the writer during the past few 

 months to work over the material of the superfamily Sphecoidea 

 in the entomological collection of the University of Nebraska. 

 Since the pubHcation of "The Sphegoidea of Nebraska"^ by 

 H. S. Smith in 1908, a great deal of new material has been added 

 to the University collection. A number of new species were 

 found in this material as well as a great many forms new to the 

 state list. It is the purpose of this paper to present the descrip- 

 tions of the new species and some notes concerning the more 

 important forms. Additional notes and a complete list of the 

 Nebraska Sphecoidea will appear in a future paper now in course 

 of preparation. The writer also received a number of specimens 

 from Mr. O. A. Stevens of the North Dakota Agricultural College 

 and the new species in that material are included in the present 

 paper. The nomenclature of the thoracic sclerites used herein 

 is that of Mr. Robert E. Snodgrass.- A binocular microscope 

 was used in identifying all specimens and in interpreting the 

 characters used in the descriptions. The types of all the species 

 described herewith are in the entomological collection of the 

 University of Nebraska, and paratypes, so far as possible, have 

 been deposited in the collection of the American Entomological 

 Society. 



1 University of Nebraska Studies, viii, pp. 323-410, October 1908. 



2 Proceedings of the I'nitod States National Museum, xxxix, pp. 37-91. 



TRANS. AM. ENT. SOC, XLII. 



