454 ENTOMOLOGICAL NEWS. [Dec., '07 



was not at home when the eggs were received. Upon his return he 

 found that the larvae had already escaped from the eggs. A diligent 

 attempt was made to find some food-plant upon which they would 

 feed, but every effort failed. Plants belonging to over thirty families 

 were tried, but without success. Unfortunately the fact that the larva 

 feeds upon plants of the genus Cassia was overlooked. This should 

 be borne in mind, hereafter by those who may be as fortunate as was 

 my correspondent in securing ova of this species in the northern states. 



The small larvae are loopers, distinctly geometrid in appearance. 

 The head is long vertically and narrow transversely. They were black 

 in color with the anal prolegs, which are elongated of a pale reddisli 

 color. 



The army-worm, Leucania unipuncta, has been very numerous this 

 summer in the eastern suburbs of the city of Pittsburgh. Several fields 

 of grass and growing grain seen by the writer at the end of June and 

 early July were almost completely defoliated by the larvae, which were 

 present in incredible numbers. 



The hispid beetle Odontota dorsalis, Thumberg, is always common 

 in Western Pennsylvania upon the leaves of the locust trees, Robinia 

 psendacacia, but this year they have been present in unusual numbers. 

 Inquiries have been frequently addressed to the writer as to these in- 

 sects, and along the upper waters of the Ohio, at Sewickley, Pa., and 

 other suburban localities the locust trees have in places been almost 

 stripped of their leaves by them. A single stroke of the beating pole 

 will sometimes bring a thousand individuals down into the umbrella of 

 the collector. W. J. HOLLAND. 



ERRATUM. 

 Page 261, line 19, for " Cicindelidae " read " Coccinellidae." 



Doings of Societies. 



A meeting of the American Entomological Society was held 

 June 27, 1907. Dr. P. P. Calvert, President, in the chair. 

 Thirteen persons were present. 



Mr. Laurent said insects became more abundant this year in 

 Florida during March. He said he believed the best season in 

 that State was from the middle of April to the middle of July. 



Dr. Calvert asked whether northern species found in the 

 tropics have the same number of annual broods as here, or do 

 the broods follow in continuous succession. Discussed by the 

 members. 



