THE GREEX JUNE BEETLE. 31 



In 1910 Prof. W. S. Blatehley (37, p. 995-996), after furnishing 

 a technical description of the species, gave some brief notes on its 

 habits, including some references. The same year J. B. Smith (38, 

 p. 321, fig. 129) published notes on the occurrence of this species 

 in New Jersey, and in 1910 (39, p. 411) reported injury to lawns by 

 the larvae in southern New Jersey, recommending kerosene emulsion. 



In 1911 Prof. E. N. Cory (40, p. 13-15) stated that the adult did 

 serious damage to corn by cutting holes in the leaves. He recom- 

 mended a rigid cleaning up in the fall and fall plowing. The same 

 year Prof. Franklin Sherman, jr. (11) published a summarized 

 account of this and other species of grubs. The same year also 

 Slingerland and Crosby (12, p. 296-298) gave a concise account of 

 this insect as a pest on peach and other fruits. 



In 1921 Mr. J. J. Davis and Mr. Philip Luginbill, Bureau of Ento- 

 mology (15), furnished the most complete account of this species 

 that has heretofore been published. It includes many instances of 

 injury, especially to lawns and golf greens, and a most excellent 

 account of the life history and habits, together with technical descrip- 

 tions of the different stages. It also contains a consideration of nat- 

 ural enemies and methods of control, especially with regard to the 

 occurrence of the insect in lawns and golf greens, and a bibliography 

 of economic literature. 



CONTROL BY NATURAL AGENCIES. 



White grubs in general have many natural enemies without which 

 there is no doubt that injuries from this source would be much 

 greater. The grub of the green June beetle is without doubt largely 

 held in control by natural enemies. 



INSECT ENEMIES. 



Blow-fly Paeasites. 



In the vicinity of Norfolk, Ya., two species of parasites were 

 reared from the pupa and adult of Cotinis nitida, one of which 

 proved to be new. 



Sarcofhaga utilis Aid. was reared from the adult, and as many 

 as two and three parasites were obtained from a single parasitized 

 individual. This parasite is a comparatively large-sized species and 

 sometimes occurs quite abundantly along the seashore. Hundreds 

 of these flies were observed frequently on seaweeds along the coast, 

 sometimes alighting on any marine animal matter cast up by the 

 sea. From the number of the parasites observed it would appear 

 that this species is a natural inhabitant of this locality, and might 

 prove parasitic on other insects besides Cotinis nitida. The habits of 

 this fly are not definitely known in regard to its method of ovipo- 



