150 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 1 



Several shade tree pests have excited considerable interest because 

 of their serious depredations. The white marked tussock moth, Hem- 

 erocampa leucostigma Sm. & Abb., defoliated trees in a number of 

 cities and villages in New York state, and would undoubtedly have 

 caused more injury had it not been checked by local work in various 

 communities. The elm leaf beetle, Galerucella luteola Miill., was ex- 

 ceedingly destructive to the elms of Albany and Troy in 1906. An ex- 

 tended injury in 1907 was prevented only by thorough and extensive 

 spraying. The sugar maple borer, Plagionotns speciosus Say must 

 be ranked as one of our most injurious species, as observations show 

 that it is seriously injuring young maples here and there throughout 

 the state. It is abundant enough in some localities to threaten the 

 existence of long rows of nice young trees. 



Forest insects have occasioned considerable anxiety in certain parts 

 of the state. The green striped maple worm, Anisota ruhicunda Fabr., 

 was very abundant over several square miles of forest land in south- 

 em Rensselaer County, defoliating tracts of sugar maples acres in 

 extent. The operations of this insect were first observed in 1906, at 

 which time approximately eight or ten acres were badly injured. The 

 past season these trees were entirely stripped of foliage, and maples 

 here and there over a considerable area lost a goodly proportion of 

 their leaves. This species was assisted in its destructive work by what 

 we have designated as the antlered maple caterpillar, Heterocampa 

 gutivitta Walk., a species which was evidently very numerous, judg- 

 ing from the specimens submitted for examination. Certain of the 

 beech forests in the Catskills suffered from an outbreak by the snow- 

 white linden moth, Ennomos subsignarius Hiibn., the caterpillars be- 

 ing numerous enough to strip most of the trees over an area about a 

 mile long and ranging from one eighth to one fourth of a mile in 

 width. An unusual injury was the destruction of some 2,500 to 3,000 

 one and two year old white and Scotch pine seedlings in the state 

 nurseries located in the Adirondacks. The injury, so far as observa- 

 tions could be determined, was caused entirely by white grubs, presum- 

 ably those of our common northern form, Lachnosterna fusca Frohl. 



A BRIEF SUMMARY OF THE MORE IMPORTANT INJU- 

 RIOUS INSECTS OF LOUISIANA 



By WiLMON Newell and Arthur H. Rosenfeld, Baton Rouge, La. 



Louisiana, with her combination of semi-tropical and temperate cli- 

 mates and plants and the consequent variety of natural enemies of the 

 latter, is of great interest entomologically. For many years ships 

 from foreign countries have been entering the port of New Orleans, 



