86 ASSOCIATION OF ECONOMIC ENTOMOLOGISTS. 



copper color, with rather large wings. He thought it the same insect 

 that defoliated sections of the orchard the previous season. 



Being unable to identify the insect from this description, a visit 

 was made to the orchard on June 14. It was found, as expected, that 

 the common rose-chafer (Macrodactylus subspinosus Fab.) was eat- 

 ing the young peaches; but flying around among the trees were a 

 number of sawflies which the owner pointed out as being the insects to 

 which he had referred. Although not more than ten or twelve saw- 

 flies were seen around a tree, the owner stated that they were much 

 more numerous a few days before. Some of these were caught to 

 bring back for identification. 



On examining the trees carefully, numerous eggs were found on 

 the underside of the leaves along the midrib and usually on the basal 

 portion of the leaf. These eggs were nearly white in color, about 

 1.6 mm. in length and 0.75 mm. in width. Some of these had 

 hatched, and small greenish-white larvae were feeding on the leaves. 

 They eat a narrow section, beginning at the edge, and work toward 

 the midrib of the leaf, then roll one of the corners over, thus forming 

 a case within which they conceal themselves, as shown in the illus- 

 tration (PL I, fig. 2). Some of this material was collected for rear- 

 ing, but through neglect the larvae all died. 



The writer was unable to visit the orchard again until July 2.. 

 The larva? had all disappeared, but the work of this insect was seen 

 throughout the 80-acre orchard, though only in small sections were 

 the trees badly defoliated. The owner thought that the injury was 

 as severe as during the previous year, and that the insect had spread 

 over a much larger area this season. 



No remedy was tried against this pest. As peach foliage in Con- 

 necticut is usually injured by any spray, it seems to the writer that 

 the most practicable treatment would be to keep the soil well stirred, 

 especially near the base of the trees, for a few weeks after the larva 1 

 begin to go into the ground to pupate. Spraying the ground around 

 the trees with kerosene emulsion might also kill many of the larva?. 



It might be well to state that this is an old orchard, which was 

 somewhat injured by the winter of 1904, and has not been cultivated 

 as thoroughly as the owners usually cultivate their orchards. 



Specimens of the sawfly were sent to Dr. A. D. MacGillivray, who 

 pronounced it a new species. The female is about 9 mm. (three- 

 eighths of an inch) long, with a wing expanse of 19 mm. (three- 

 fourths of an inch). Head and thorax black, with pale-yellow mark- 

 ings. Antennae about one-fourth of an inch long. Abdomen with 

 two black basal segments, the remainder being brown-ocher in color. 

 Legs with pale yellow femora, tibiae and tarsi brown-ocher. 



It is hoped that this insect can be studied another season and notes 

 made regarding its life history. 



