THE CA^'ADIAN ENTOMOLOGIST. 4o 



sub-basal band of grayish pubescence, well marked lateral costae, and with 

 a row of five or six tufts of erect black setee. P. tnixtus, Hald., is .20- 

 .28 ill. long, much resembling the former species, but the lateral costae of 

 the elytra are indistinct and the tufts wanting. The extent of the pubes- 

 cent bands is variable. The elytra are clothed with erect black bristles, 

 in addition to the short pubescence. Bred from dead willow branches, 

 and found also on pear trees, while I have taken it (]uite abundantly on 



poplar logs. 



EcYRUS, Lee. 



E. dasycerus, Say, has been bred from dead hickory limbs by Dr. 

 Hamilton. It is from .24-32 inch long, brownish or cinereous, thorax 

 without well-marked tubercles, disk with two longitudinal approximate 

 dark lines, usually rather indistinct. Elytra with black arcuate band near 

 base, a number of black points (consisting of bundles of hairs) arranged 

 in series, and a common indistinct white band behind the middle, which 

 miy sometimes be wanting. The antennte are hairy beneath. 



Oberea, Mulsanl, 

 Contains very elongate, cylindrical species, easily recognized by 

 their facies. Some of them are quite variable in colour, and hence the 

 number of names proposed is in considerable excess of the species now 

 recognized. Mr. Leng has tabulated them according to structural 

 characters, leaving only three specific names to cover all the recorded 

 Canadian forms, thus : 



Thorax with four callosities ; pygidium of female strongly pro- 

 tuberant. .45-.60 in - Schaumii, Led. 



Thorax with two callosities ; pygidium of female feebly protuberant. 



.32-. 70 in , Jripuiictata, Swed. 



Thorax without callosities; elytra densely pubescent. .60-.70 



in rujicoliis, Fabr. 



The colour varieties of tripunctata are thus separated by Mr. Leng ; 

 amahilis is said to scarcely differ from mandarina : 

 Body beneath black ; legs nearly or quite black. 



Thorax yellow, with two discal and an antescutellar spot 



black tripunctata, || Fabr. 



Thorax yellow, with two discal spots alone h\dick . b imacu/ata, Oliv. 

 Body beneath in great part yellow ; head yellow, thorax with two 



discal and an antescutellar spot black mandarina, Fabr. 



Most of the species of Oberea are found about raspberry and 

 blackberry, in the canes of which they bore. However, 0, Sc/iiiujnii apoJ 

 Q. mandarina breed in twigs of cottonwood. 



