TRANSAPTIONS HORTICULTURAL SOCIETY UF NORTHERN ILL. 359 



Prionus laticollis, Drury. The Broad-necked Prionus. 



This species, in the perfect state, is a very large beetle, of a long oval 

 shape, varying in length from a little over an inch to an inch and three- 

 fourths in length ; width across the wing-cases nearly equal half the 

 length. The body is considerably flattened ; the thorax dentate on the 

 lateral margin ; the antennce serrate. The color is almost uniform dark 

 mahogany, or nearly and sometimes quite black. 



The larva, when full grown, is about three inches long, with six min- 

 ute legs; color yellowish white; head dark brown; second and third 

 segments the broadest, the body tapering gradually from thence backward 

 to the end ; the under side flattened. 



This infests the roots of grape-vines, eating out the inside until they 

 are completely destroyed. They are found, also, sometimes boring into 

 the roots of apple trees, Osage orange roots, and even into the roots of 

 corn-stalks. 



Careful cultivation of the soil, with occasional mulching of ashes, 

 and gathering and destroying the beetles, will probably prove the most 

 effectual remedies. 



Chion garganicitm, Fab. {Stenocorus cinctus,Yi2ccx.) The Hickory-trunk 

 Borer. 



This is a long-horned beetle, belonging to the sub-family Ceramby- 

 ctdes, heretofore m.entioned. It is of a reddish brown color, the head and 

 thorax being darker than the wing-cases; covered throughout with scat- 

 tered, pale yellow down or hairs ; antennae very long, exceeding the 

 entire length of the body ; a smooth, dark red line across the face 

 between the eyes ; thorax barrel-shaped, with a sharp spine each side near 

 the middle ; scutel yellow. Each wing-case has an oblique, yellow par- 

 tial band across it, a little in front of the middle; commencing about 

 one-fourth of an inch behind the shoulder of each wing-case, they run 

 obliquely inwards and backwards to the suture or inner margin. On each 

 side of these bands the color is darker than on the other parts of the 

 wing-cases ; each wing-case has, at the tips, two little sharp teeth or spines 

 projecting backwards, the inner spine or tooth being the longest ; length 

 of the insect from seven-tenths to one inch ; width about or slightly 

 more than one-fourth the length. 



The larvce of this species inhabit the trunk of the hickory, in which 

 they form long galleries in the direction of the fibres. 



I am not aware that any remedy has been tried or suggested in refer- 

 ence to this particular species. 



Elaphidion villosum, Fabr. The Oak-twig Pruner. 



This beetle belongs to the same group as the preceeding ; is long 

 and slender; the antennae of the males are longer than the body, about 

 equal to it in the females ; it is of a dull bay-brown color, with small, 

 scattered, irregular patches of gray hair; eyes semi-circular; beneath the 

 anterior corner of each is a smooth, oblique prominence; head not 



