124 [Assembly 



Chetsochus afratcs {Fdbr.y — Professor S. A. Forbes, State En- 

 tomologist of Illinois, has kindly communicated to me a new food- 

 plant for this beetle, discovered in the State of New York. He had 

 received under date of July 7th, from Mr. C. Fred Johnson, of 

 Bayport, Suffolk Co., some " potato-bugs,'' which he identified as this 

 species. It had " appeared only on a dozen or so of plants, in a 

 field of two acres, but as many as thirty or forty were found on a 

 single plant." It had never before been recorded as occurring in- 

 juriously upon any cultivated plant. 



Trirhabda canadensis {Kirby). — On the 22d of June, at Schoharie, 

 N. Y., found in one locality a large patch of the golden rod, Solidago 

 Canadensis^ infested with numbers of a shining black larva, about 

 a half-inch in length, and tapering toward each end. Of a number 

 gathered and fed upon the golden rod, a half dozen had changed to 

 the pupa state, ten days thereafter. On the 15th July, the beetles 

 were disclosed, and proved to be one of the Chrysomelidce,^ viz., 

 Trirhdbda Canadensis (Kirby). The ochre-yellow stripes of the 

 elytra, at first quite bright, gradually dulled in their drying. 



Numbers of the beetles were observed, on September 8th, feeding 

 upon the leaves of the golden rod. When approached, they drop to 

 the ground and lie raotionl-ess. Several pairs were in copula, and all 

 of the fenitiles had the abdomen enormously distended with eggs. 

 Diahrotica vittata (Fabr.) was also very abundant in the blossoms of 

 the plant, where it was feeding upon the pollen. 



T. Canadensis has also been observed, abundantly, at Keene Val- 

 ley, Essex county, N. Y., on golden rods, late in July and early in 

 August. 



Hylksinus oPAcuLrs Z^c. — This little bark-boring beetle (deter- 

 mined by Dr. Horn) was found by Prof. C. H. Peck, State Botanist, 

 under the bark of living, and, to all appearance, healthy cedar trees 

 {Arbor vitcB). They occurred May 26th, within their main galleries, 

 with eggs laid at intervals, in niches on each side, from which, later, 

 would run the lateral galleries of the larvae. The beetle has hitherto 

 been recorded only on elm and ash ( TJlmus and Fraxinus). 



Phlceotribus liminaris Harris. — Numbers of this beetle, desig- 

 nated by Saunders as the elm-bark beetle, although perhaps more 

 frequently occurring in the peach, were emerging in my oflice June 

 6th, from sections of the trunk of a young peach-tree, received from 

 Mr. G. W. Duvall, from near Annapolis, Md. The tree had, it was 

 believed, been killed by the insect the preceding year. 



OEcANTHUs NivEus Harris. — Peach twigs, badly scarred through 

 the ovipositionof this insect, the white flower-cricket, wei'e received, 

 in April, from Mr. O. Wilson, of Keuka, Chemung county, N. Y. 



Ephemera natata ( TFrtZA'(3r). — Examples of this May-fly were 

 brought to me on June 6th, and reported as having occurred in im- 

 mense swarms in Middleburgh, N. Y. 



