THE CANADIAN ENTOMOLOGIST. 151 



there are three on the head, four on the thorax, and six on the wing- 

 covers, the tips of which are also edged with yellow. The first and 

 second bands on each wing-cover are nearly straight ; the third band 

 forms a V, or united with the opposite one, a W, as in speciosus ; the 

 fourth is also angled, and runs upwards on the inner margin of the wing- 

 cover towards the scutel ; the fifth is broken or interrupted by a longi- 

 tudinal elevated line, and the sixth is arched and consists of three little 

 spots. The antennae are dark brown, and the legs are rust-red. 



Clytus Robinice Forster. — According to Walsh the male of this species 

 differs from C. pieties in having much longer and stouter antennae, and in 

 having its body tapered behind to a blunt point, while the female is not 

 distinguishable at all. This insect does great injury to the Locust and 

 Acacia trees, and appears in the perfect state in September. Harris con- 

 founds this with Clytus pectus ; in fact, it was long considered by Ento- 

 mologists to be identical with it. It has sometimes been known as Clytus 

 Jlexuous Fab. 



During comparatively late years Robinice has been extending its sphere 

 of operations. For a long time it was known only in New York. Some 

 thirty years ago it appeared in Chicago, and in 1863 it was seen two 

 hundred miles further west. In 1855 it was first observed in Montreal; 

 in 1862 it was very destructive to the Locust trees around Toronto; in 

 1873 Mr. E. B. Reed saw it in enormous numbers in London, Ont. Now 

 it seems to be quite at home in all parts of Ontario. Harris, speaking 

 evidently of this, though under the name of C. pictus, says: "In the 

 month of September these beetles gather on the Locust trees, where they 

 may be seen glittering in the sunbeams with their gorgeous livery of black 

 velvet and gold, coursing up and down the trunks in pursuit of their mates, 

 or to drive away their rivals, and stopping every now and then to salute 

 those they meet with a rapid bowing of the shoulders, accompanied by a 

 creaking sound, indicative of recognition or defiance. Having paired, the 

 female, attended by her partner, creeps over the bark, searching the 

 crevices with her antennae, and dropping therein her snow-white eggs, in 

 clusters of seven or eight together, till her whole stock is safely stored. 

 The eggs are soon hatched, and the grubs immediately burrow into the 

 bark, devouring the soft inner substance that suffices for their nourishment 

 until the approach of winter, during which they remain at rest in a torpid 

 state. In the spring they bore through the soft wood, more or less deeply 

 into the trunk, the general course of their winding and irregular passages 



