INSECTS AFFECTING PARK AND WOODLAND TREES 649 



A modestly colored, flattened beetle about y& inch long occurs in midsummer on hard 



pine branches • ■ •■• Chrysobothris f 1 o r i c o 1 a, p. 658 



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



Chrysobothris pu si 11a, p. 658 

 A large, stout, brownish beetle i}( inches long breeds in pine stumps 



Harris's Prionus, Tragosoma harrisii, p. 659 

 A large, brownish black, narrow beetle about 1 inch long occurs on pines in June and July 



Criocephalus a g r e s t i s, p. 659 

 A bluish, flattened beetle about }4 inch long occurs in early spring on pines 



Blue pine borer, Callidium antennatum, p. 660 

 A blackish brown beetle ^ to ^ inch long occurs late in May on pine 



Lesser pine borer, Asemum moestum, p. 661 

 A grayish brown, mottled beetle s/,6 to ^2 inch long occurs on white pine 



Acanthocinus obsoletus, p. 662 

 A slender, grayish brown beetle about yl inch long occurs on pine in July 



Xylotrechus s a g i 1 1 a t u s, 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 



Pogonocherus m i x t u s, p. 663 

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

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



Hylotrupes b a j u 1 u s, p. 664 

 A dark chestnut-colored weevil yi inch long occurs in May and June on pines or in 



mill yards Pales weevil, H y 1 o b i u s pales, p. 664 



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



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

 A jet-black beetle only yl 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 inches long occurs on spruce 



White-horned Urocerus, Urocerus albicornis, 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 spruc e 



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 11 s c y a n e u s, p. 669 



