454 



NEW YORK STATE MUSEUM 



Dr Bailey observed that the infested tree was visited several times by 

 the hairy woodpecker, P i c u s v i 1 1 o s u s, and on each occasion it worked 

 industriously for a considerable time exploring the bark in search of larvae 

 and undoubtedly securing a number. 



Male. Head blue black, sometimes with a few yellow hairs between 

 the antennae, palpi pale yellow, black above. Collar at the sides pale 

 yeljow. Thorax blue black with a narrow pale yellow line on each side. 

 Abdomen blue black with a very narrow pale yellow ring on the second and 

 fourth segments ; the ring on the fourth segment encircles the body, or is 

 only present beneath and sometimes in form of a patch. Anal tuft has- 

 tate, blue black, narrowly edged with white at the sides. Legs blue black, 

 with pale yellow tufts on the tibiae, and yellow rings on the tarsi ; anterior 

 coxae marked with yellow. Forewings transparent, with the margins very 

 narrow, blue black ; discal mark, narrow, straight. Sometimes the inner 

 margin is scaled with pale yellow. Underside with inner and costal mar- 

 gins, and discal mark scaled with pale yellow. Hind wings transparent, no 

 discal mark, and with very narrow outer margin ; fringes becoming whitish 

 towards the base. Underside like the upper. 



Female. Same as the male, but more robust, with straight anal tuft 

 and simple antennae. 



Expanse, male 15-20 mm; female 20-26 mm. Beutenmuller 



Gaurotes cyanipennis Say 



A red-horned, red-legged, black, brilliant, greenish beetle 

 about ^2 inch long, occurs on butternut, oak and birch. 



Specimens of this brilliant beetle were taken on 

 birch at Big Moose N. Y., July 2, 1903. This beetle 

 is easily recognized by its striking colors, the head and 

 thorax being black and the wings a brilliant green. 

 The reddish antennae are a little over half the length 



Fig. 108 Gaurotes cyani- 

 pennis, enlarged (original) f the body. The thorax is subcylindric, tapering 



anteriorly, and the wing covers are slightly truncate. 



Life history. Mr Wickham states that he has found this insect largely 



confined to sumac blossoms in Wisconsin. It has been found pairing 



and ovipositing on butternut, by Mr F. B. Caulfield, while Dr Hamilton 



reports it common in southwestern Pennsylvania, where it breeds in 



J u g 1 a n s alba. 



