Report of the State Entomologist 



315 



Diabrotica 12-punctata (Oliv.). 

 The hvelve-spotted Diabrotica. 



The above-named well-known Chrysomelid, represented in Figure 

 32, Las been received from Mr. Wm. Falconer as having been (in 

 association with the Epiladma 

 noticed in a preceding page) a great 

 annoyance and very injurious dur- . 

 ing the summer and in October, as /jT 

 despoiling the Chrysanthemums M 

 and Dahlias, in eating and riddling jfl 



the petals. According to Mr. Fal- 

 coner, it appears to feed on almost 

 everything, and is present in so 

 great abundance that it seems iise- 



less to attempt any remedy. Sprink- Fig. 32.— The twelve-spotted Diabrotica, 



T„^ •i.i, „ ^.^ ,™ , ^i.^ „ Diabrotica 12-PUNCTATA enlarged, with 



ling With pyrethrum water was SUg- ^^^.^^^^ enlargements of parts (After 



gested, but Mr. Falconer had but Emmons). 



little confidence in an application of this character, for a beetle so 



alert and active and which so readily takes wing when disturbed. 



In addition to its large number of known food-plants, it has recently 

 been reported as feeding to an injurious extent upon the foliage of 

 the peach, and also on cabbage in southern Mississippi (S. F. Earles, 

 in Entomological News, i, 1890, p. 152). 



The Fongus of 

 Phytonomus punctatus (Fabr.). 

 The Glover-leaf Weevil. 

 The fungus that attacked and quickly killed the young larvae of 

 Phytonomus punctatus at the farm of the N. Y. Agricultural Experi- 

 ment Station, at Geneva, in the spring of 1885, was 

 noticed in the Fifth Report on the Insects of New York, 

 1889, p. 272, as Entomophthora Phytonomi Arthur. At 

 that time, the careful study made by Dr. Koland Thax- 

 ter on "The Entomophthorse of the United States," as 

 published in the Memoirs of the Boston Society of Natu- Fig. 33 — Fungus- 



rdl History, vol. iv, No. vi, April, 1888, had not come attacked larva of 



1- 1,- • -r^mi Phytonomus 



under my observation. In this publication. Dr. Thaxter punctatus coiled 



has referred the E Phytonomi of Prof. Arthur, after about the tip of a 



examination of material from Geneva, N. Y., which had Enlarged five 



passed through my hands, to the Entomophthora diameters. 



sphcerosperma of Fresenius, published in 1856. 



