INSECTS AFFECTING PARK AND WOODLAND TREES 649 



A modestly colorcil, flattened beetle about ?8 inch long occurs in inidsumiiier on hard 



pine branches C h r y s o b o t h r i s f 1 o r i <■ o 1 a, ]>. 658 



A small, flattened beetle J4 inch long is abundant on hard pine from June till September 



Cli r y s o 1) o t h r i s j) 11 s i I 1 a, jj. 658 

 A large, stout, brownish beetle i '^ inches long breeds in pine stumps 



Harris's I'rioniis, 'Ira go so in a h a r r i s i i, p. 659 

 A large, brownish black, narrow beetle about i inch long occurs on pines in June and Julv 



C r i o c e ]) h a 1 us a g r e s t i s, p. 659 

 A bluish, flattened 'beetle about '3 inch long occurs in early spring on pines 



Blue pine borer, C a 1 1 i d i u ni a n t e n n a t u m, p. 660 

 A blackish brown beetle '2 to Sg inch long occurs late in May on pine 



Lesser pine borer, A s e m u m m oe s t u m, p. 661 

 A grayish brown, mottled beetle s ',5 to ^-3 inch long occurs on white i)ine 



A c a n t h oc i n u s o b s o 1 e t u s, p. 662 

 A slender, grayish brown beetle about ^4' inch long occurs on pine in July 



Xylotrechus sagittatus, p. 663 

 A small beetle '( inch long with a dark head and thorax and lighter wing covers and 



antennae, occurs on pine B a t y 1 e s u t u r a 1 i s, p. 663 



A small, dark brown longicorn ]{ inch long occurs on pine and willow in midsummer 



P o g o n o c h e r u s m i x t u s, p. 663 

 A black beetle about ^^4 inch long sparsely clothed with white hairs and downy white 

 spots on the wing covers, forming two irregular bands, occurs on pine 



H y 1 o t r u ]) e s b a j u 1 u s, p. 664 

 A dark chestnut-colored, weevil Sg inch long occurs in May and June on jjines or in 



mill yards Pales weevil, H v 1 o b i u s |) a 1 e s, p. 664 



A stout, brownish bark beetle about 3, 16 inch long occurs under pine bark 



Pine Hylurgops, H y 1 u r g o p s g 1 a b r a t u s, p. 665 



A jet-black beetle only J4 inch long and with silvery white markings on the wing covers, 



occurs in midsummer on pines Clerus quadriguttatus, p. 666 



Spruce, species affecting 

 A conspicuous bluish black horntail about iji^ inches long occurs on spruce 



White-horned Urocerus, U r o c e r u s a 1 b i c o r n i s, p. 667 

 A large, black, 4-winged fly an inch long and having some resemblance to a wasp but 

 with a stout, cylindric body, attacks spruce 



Banded horntail, Urocerus a b d o m i n a 1 i s, p. 668 

 A small horntail with a blue abdomen and rufous legs attacks spruce and fir 



Blue horntail, P a u r u r u s c y a n e u s, p. 669 



