27 



This would certainly account for a small part of the difference in the 

 percentages of damage in the two orchards. 



There seems to be no question as to the successful outcome of the 

 experiment, and Mr. Hale, who shipped 143 cars of fruit from the 

 orchard, considers the money required for the jarring well spent. 



A study of tlie collections of insects made by thus jarring the trees 

 has revealed many interesting features as regards the species present 

 and their comparative abundance. About 325 si)ecies were mounted 

 and determined; the larger part were found in insignificant numbers, 

 but many were abundant. Outside of the Coleoptera and Hemiptera, 

 very few of an}^ order were taken, and of these no record has been 

 kept. The presence in considerable numbers of the peach borer, 8an- 

 nina exitiosa^ during the earlj^ half of Ma}^ is, however, worthy of note. 



LIST OF FAMILIES REPRESENTED. 



COLEOPTERA. 



The Coleoptera easily outnumbered the Hemiptera, even without 

 considering the immense numbers of curculio, and many of the species 

 were of economic interest. The list of families represented is as 

 follows : 



Carabid^. — Very few specimens early in the season, but many at later dates. 

 Lebia, as might be expected, was common; Calosoma sayi, ivilcoxi, and scru- 

 tator were scarce, but conspicuous from their size and color; Platynus was 

 the most common genus, and represented by several species, of which lim- 

 batus was present in the largest numbers. 

 Phalacrid^.— Scarce. 



CocciNELLiD^. — These beetles, of such great economic importance in reducing 

 the numbers of such widely distributed scales as Aspidiotiis forbesi, etc., were 

 sorted from the jarrings as made and set at liberty. Thus no good idea could 

 be obtained as to their actual abundance; but, judging from the large num- 

 bers that escaped the mercy of the sorters, very large numbers must have been 

 originally present. Thirteen species were identitied (counting Scymnus as 

 one), the most of them known as scale feeders. The most common was, how- 

 ever, Anatis J5-punctata, with a close second in Hippodamia convergens. 

 Among those that have been especially noted as feeding on the scales infesting 

 peach in Georgia were Coccinella sanguinea, common; Chilcorus bivulnerus. 

 common; Exocliomus tripustulatus, scarce; Hyperaspis signata, scarce. 

 Scymnus was common, but the species are as yet undetermined. Strangely 

 enough, Adalia bipunctata, which occurs about plant-lice in swarms, was 

 wholly lacking. 



Endomychid.^.— Very rare. 



Erotylid.^.— Scarce. 



Dermestid^, Nitidulid^, Trogositid^, and Dascyllid^. — All rare. 



Elaterid^. — Abundant. The species, however, largely such as breed in rotten 

 wood, such as the old stumps often occurring in orchards, or in its environs. 

 For instance, Alaus inyopa was common and conspicuous; Perothops mucida 

 was very common in some lots, and in general the species were of little eco- 

 nomic interest. 



Throscidje.— Eare. 



BuPRESTiD.E.— Abundant. The collections in this family were interesting, prin- 

 cipally on account of the abundance of the genus Chrysobothris. C. femorata 



