INSECTS AFFF-fTIXC PARK AM) WOODI-AXD TKEF.S 



393 



wood lit^hth' at tirst hut as th(: <,Mnil)s increase in si/c tlic wood is entered 

 more deeply, till nearly half the Ijurrow ma\- he thert-in 



Natural enemies. This little insect apjicars to he kept well in check 

 hy natural enemies, of which a nuniher ha\c heen recorded. 1 )r Hopkins 

 lists the predaceous IMiymatodera hi color .Sa\" as an associate 

 and C 1 e r u s q u a tl r i s i ^- n a t u s Say var. n i ^; r i p e s .Say has been 

 ol)servetl under red cedar hark with this insect. .Se\eral small parasites 

 also pre\' on this species. S p a t h i u s canadensis ;\shm., a species 



Fig, 91 Phlocosinns dentatus: 

 adult g.TlIcry ami c\m notches faiitlior's 

 illustration! 



Fij;. 92 Phi c n s i n n s dent :i t n s : 

 small gallery arul larval mines (author's 

 illustration) 



of Pteromaliis and a sjjecies of Hurytoma hax'c heen ohserxcd hy i )r 

 Hopkins pre\ini;' on this horer. I hi- writer has reared another small 

 ])arasite from this insect wlilch has Ix-eii klndh' di-termined b\' Mr Ashmead 

 as C a u d o n i a [) i t y o ]) h t li o r i Ashm. 



Bibliography 

 1890 Packard. A. S. U. S. Ent. Com. 51!) Rcp't. p. 904-6 



1893 Hopkins, A. D. W. Va. .\gri<;. .Sta. Bui. 32, p. 185, 1H6. 213, 222. 224, 226 

 1903 Felt, E. P. lor. Fish anil Came Com. 7th Rep't, j). ^22-2^ 



