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during the auto trips in question. The method referred to is 

 the simple one of using the ordinary collecting muslin net as 

 a trap, holding it at the side o± the speeding car when the speed 

 is not over twelve or fifteen miles per hour and the wind blow- 

 ing only sufficiently strong to fill the net with air. I am now 

 sorry that I did not think of this interesting experiment be- 

 fore when touring through other sections of California, as I 

 am sure the results would have been very gratifying. In the 

 three hours trapping above referred to (August, 1915), the 

 following insects were captured and later mounted for deter- 

 mination. The Coleoptera were determined by Dr. Blaisdell 

 of San Francisco, the Hymenoptera by Harry S. Smith of the 

 State Insectary, Sacramento, and the Hemiptera by Prof. Van 

 Duzee of the State University. To these gentlemen I am in- 

 debted for their kindly assistance. Of the Coleoptera there 

 are eight families, consisting of sixteen genera and eighteen 

 species, totaling forty-three specimens. Of the Hymenoptera 

 there are five families, consisting of fourteen genera and six- 

 teen species, totaling twenty-eight specimens. Of the Hemip- 

 tera there are six families, consisting of nine genera and nine 

 species, totaling eighteen spcimens. The numerous Dipterous 

 were undetermined. The grand total comprises three orders, 

 nineteen families, thirty-nine genera and forty-three species. 

 In all eighty-nine specimens, excluding Dipterous. 



Hereunder is a full list of all the determinations made of 

 the insects collected at the three hours previously referred to, 



HEMIPTERA. 



Saldula inierstitialis Say. (1 specimen). 



LeptocoHs trivittata Say. (1 specimen). 



Lygus pratensis Linn. (1 specimen). 



Triplileps tinsticolor White (1 specimen). 



Nyysius ericeae Schill. (»)i)ior Wht.), (2 s^iecimeus), 



Stictocephala unckhami V. D, (1 specimen). 



Agallia cinerea (5 specimens). 



Fuscelis exitiosus Ulil. (1 specimen). 



Conna sp. (5 specimens). 



