April, '08 J JOURNAL OP ECONOMIC ENTOMOLOGY 155 



on swamp post-oak, and Parlatoria proteus Curt., on palms, ferns, 

 laurel and sweet olive. 



Insects Attacking Man and Live Stock 



The yellow fever mosquito, Stegomyia calopus Meigen, and the 

 malarial mosquito. Anopheles maculipennis Meigen, are man's chief 

 foes in Louisiana. About 40 other mosquitoes are known to occur in 

 the State, but these two, being proven carriers of disease, are of the 

 most importance. 



The live stock pests are numerous, chief among them being the 

 hornfly, Hacmatohia serrata R-D., and the screw-worm fly, Campso- 

 myia macellaria Fab., the southern buffalo gnat, Simulium pecuarum 

 Riley, which annually kills many animals, and the horseflies and ear- 

 flies, Tabanus spp. and Chrysops spp. The principal species of 

 Tabanus are the green-head horsefly, T. costalis Wiedemann, the lined 

 horsefly, T. lineola Fab., the American gadfly, T. americanus Foster, 

 the black horsefly, T. atratus Fab., the autumn horsefly, T. sulci frons 

 Macquart, T. quinquevittatus Wiedemann, T. annulatus Say, T. sagax 

 Osten-Sacken, T. abdominalis Fab., T. coffeatns Macq., T. fulvulus 

 Wiedemann and T. fuscicostus Hine. Species of Chrysops are num- 

 erous, the striped earfly, C. vittatus Wiedemann, the brown earfly, 

 C. flavidus Wiedemann, the little earfly, C. pikei Whitney, C. ohso- 

 letus Wiedemann, 0. hrunneus Hine and C lugeyis Wiedemann being 

 the most abundant. The species of Tahanidce assume peculiar im- 

 portance economically because of their apparent participation in the 

 spread of "charbon," or anthrax. 



In opening the discussion on these papers, President Morgan stated 

 that the boll worm is a serious pest in Tennessee. In that state, soy 

 beans are being used to build up the soil. These plants have a habit, 

 like that of cockle burr, of fruiting at almost any time during the 

 season. The worms attack the late pods of the soy bean and the cow- 

 pea and prevent the development of seeds. These are the only avail- 

 able food plants for the insect at that time of year and it is a very 

 difficult matter to save the crop. 



Mr. Headlee stated that the injury caused by this insect to corn in 

 Kansas has increased in the last few years. In one field he counted 

 one hundred ears and of these ninety-nine were attacked by one or 

 more worms. 



Mr. Quaintance called attention to the fact that this insect is a 

 serious pest of cotton in some of the southern states, and referred to 

 the work of the Bureau of Entomology in Texas in 1903 and 1904 



