HICKORY KUTS. L09 



wing-covers are all interrupted or broken up into small 

 white spots or dots. I have no remedy to suggest, fur- 

 ther than to cut down old, infested trees, and to haul 

 the wood out into the sun and spread it out where it 

 will quickly dry and become seasoned. If the felled 

 tree and wood is stripped of its bark as soon as cut, tlie 

 female beetles will not deposit-their eggs upoa it. 



There are other long-horned beetles {Cerambycidce) 

 that are occasionally found breeding in the hickories, 

 and among these may be named the Belted Chion [Chion 

 cinctus), Tiger Goes {Goes tigrinus), Beautiful Goes 

 {Goes pulchra), and the Orange Sawyer {Elaphidion 

 iiierme), but they are usually quite too rare to be con- 

 sidered as very destructive insects. 



HiCKOET-BAEK BORER {Scolytus i-spinosus. Say). 

 — Only once within my memory has this minute but 

 destructive beetle appeared in any considerable num- 

 bers in my neighborhood, although I have occasionally 

 received a few specimens from correspondents in various 

 parts of the country, even as far west as the Pacific coast 

 in "Washington. This borer is a very small, cylindrical, 

 dark brown beetle, about one-fifth of an inch or less in 

 length, and one-sixteenth in diameter. The hind part 

 of the body is quite blunt (truncate), the males having 

 four short but distinct blunt spines, two on each side, 

 projecting from the hind part of the abdomen, hence 

 the name "4-spinosus." In the females these sjpines 

 are absent, otherwise they closely resemble the males. 

 These bark borers usually appear here in the Northern 

 States the last of June or early in July, and both sexes 

 attack hickory trees of all species, but appear to prefer 

 the old and nearly mature trees to the young and small 

 ■ with thinner bark. After boring through the bark and 

 reaching the soft cambium layer underneath, upon 

 which these insects feed, the female cuts a vertical chan- 

 nel in this substance, of little over an inch in length. 



