THE CANADIAN ENTOMOLOGIST. 109 



Eburia, Serv. * 



The two pairs of raised white spots (looking hke Ichneumon eggs) 

 on each elytron will easily serve to distinguish this genus. The only 

 Canadian species is E. quadrigeminata, Say, which is of a yellowish 

 colour, the thorax with sharp lateral spine and two distinct discal 

 callosities. The elytra are bispinose at apex, the middle and hind 

 femora have each two long spines at tip. The ivory spots of the elytra 

 are situated on the costae, the outer one of each pair being the larger, 

 this difference in size being much better marked in the posterior pair. 

 Length, .90-1.20 inch. Breeds in hickory, ash, and honey locust. 



RoMALEUM, White. 

 Contains two large species, among the most bulky of the Canadian 

 Longhorns. Both are pubescent insects of robust build, the prothorax 

 rounded at sides and without lateral spine, the elytra spinose at apex, tip 

 of thighs unarmed, antennae spinose internally. R. rtifulum, Hald., is 

 fulvous with uniform pubescence of the same colour. Length, .88-1.15 

 in. R. atoinarium is darker, brownish,with irregularly mottled pubescence, 

 and reaches a slightly larger size. It has been found under bark of 

 walnut, while the larva has been bred up on hackberry, 



Elaphidion, Serv. 

 The Canadian species of this genus are smaller and less robust than 

 the preceding, and may be distinguished therefrom by that character 

 alone. E. viliosum is the well-known oak-pruner, and does, at times, 

 considerable damage by ovipositing in twigs of oak trees, the larvae then 

 eating out the inner portion, so that the twig becomes weakened and may 

 be blown off in a strong wind. Its depredations are not confined to oak, 

 however, as Mr. Chittenden has recorded many other food plants. The 

 table of species is an adaptation of the characters presented by Mr. Leng: 

 A. Antennal spines large, thighs spinose at tip, body above with 

 irregular vestiture of gray pubescence. .60-. 7 5 inch. 

 AA. Antennal spines small. 



b. Above clothed with mottled gray pubescence, elytra bispinose 

 at tip. 



c. Sides of i)rothorax roijnded. .70 iiiccrtum, Newm. 



cc. Sides of prothorax hardly rounded ; nearly cylindrical. 



Prothorax scarcely longer than wide. .70 \n. viliosum^ Fabr. 

 Prothorax distinctly longer than wide. .70 



in paralleluniy Newm, 



