214 JOURNAL OF ECONOMIC ENTOMOLOGY [YoL 3 



The fall army worm. Laphygma fnigiperda Sm. & Abb., was 

 seriously abundant in some sections, particular injury being done 

 to young rice. The author saw one 10-acre corn field near Hammond, 

 La., made as bare in a few days as if there had been no crop on the 

 land whatsoever. 



The destructive pea aphis, Nectarophora pisi Kalt., and the onion 

 thrips, Thrips tabaci Lind., did considerable damage in St. Bernard 

 Parish, the extreme southeastern parish of the state, though the dam- 

 age was not as serious by either species as in 1907. 



Truck Crop Insects 



A few specimens of the Colorado potato-beetle, Leptinotarsa decem- 

 lineata Say, have been received at the office of the Commission, but 

 this insect is usually conspicuous by its absence. 



The sweet potato borer, Cylas formicarius Fab., has been, as usual, 

 quite common in South Louisiana, and the ever-present Harlequin 

 cabbage-bug, Murgantia histrionica Hahn., has been heard from only 

 occasionally. 



The imported cabbage worm, Pontia rapce Sell., has been more 

 numerous the past fall than in many years. On account of decreased 

 cotton acreage, considerable truck has been planted in some sections 

 of Louisiana, and a large amount of fall cabbage was this year grown. 

 Most of the cabbage growers are yet unfamiliar with the insects 

 attacking this crop, and, as a result, the imported cabbage worm did 

 an unusually large amount of damage. 



The past fall, also, was notable for its tremendous number of bean 

 leaf -beetle, Ceratoma trifurcata Forst. Cowpeas and all sorts of 

 beans were badly riddled, and applications of arsenate of lead seemed 

 to have little effect. 



The striped cucumber beetle, Diabrotica vittata Fab., was another 

 common insect which was unusually numerous the past season. 



The squash lady beetle, Epilachna borealis. Fab., is always found 

 in small numbers, scattered over the state. 



Insects Injurious to Stored Products 



The insects in stored food-stuffs, etc., in Louisiana, are legion. 

 Among the commonest are the drug-store beetle, Sitodrepa panicea 

 Linn., the saw-toothed grain-beetle, Silvanus surinamensis Linn., the 

 rust-red flour beetle, Triholium ferrugineum Fab., the cadelle, Tene- 

 irioides mauritanica Linn., the cigarette beetle, Lasioderma testa- 

 ceum Dufts, the rice weevil, Calandra orgzce L., the granary weevil. 



