THE CANADIAN ENTOMOLOGIST. 



figured his species, clearly showing the structure of the antennae. 

 There can thus be no doubt as to which of the two species he had 

 before him. 



7. Aradiis liiguhris Fall. — In his Catalogue of the Heteroptera 

 of the British Museum, Walker described as new an Aradus fefte- 

 stratiis, founding the species on many specimens from St. Martin's 

 Falls, Albany River, Hudson's Bay, and from Nova Scotia, and on 

 two specimens from the Rocky Mountains. In his Revision of 

 Walker's Aradida? Distant marked fenestratus as a good species, 

 and in arranging the Aradids of that Museum Distant has ap- 

 parently left the types of this species in the same state as Walker, 

 as I stated when I examined them a year ago. The first specimen 

 bears a round label with the word "type" upon it and belongs to 

 liiguhris to which also several other specimens appertain, but 

 intermixed with them are a few specimens of Aradus abbas Bergr., 

 easily recognized by the very slender antennae narrowly biannulated 

 with white. Walker's description exclusively refers to liiguhris, 

 of which fenestratus should be cited as a synonym. 



Gen. Call sins Stal. 



To the characters of this genius should be added: Metanotum 

 et segmentum primun (verum) dorsale abdominis ad latera corporis 

 \isibilia. Orificia distincta, punctiformia, mox ante coxas posticas 

 sita. 



In all species of this genus the scutellum is constricted in the 

 middle, but the margins appear to be straight owing to the linear 

 corium being so closely attached to the scutellum that it seemingly 

 forms a part of it. The connexivum in this genus is split from the 

 lateral margin, being, as Champion correctly observed, "divided 

 into two parts, a dorsal and ventral," but these are not always 

 similarly armed, as will be seen from the descriptions given below. 

 To get a correct view of the manner in which the connexivum is 

 armed it is necessary to examine the upper lateral margin at a 

 right angle to the margin (thus more or less horizontally, as the 

 margin is more or less reflected) and the lower lateral margin 

 obliquely from above, lest the tubercles of ihe ventral lateral 

 margin will make the impression of being situated on the dorsal 

 lateral margin. 



8. Calisius elegantidus, n, sp. — Subelongately ovate (9), light 

 brown'sh testaceous, last antennal joint fuscous, scutellum with 

 two transverse oblique black spots immediately behind the basal 

 callosity at the median ridge and a cretaceous streak on each side 

 between the black subbasal spot and the lateral sinuosity, the first 

 connexival segment whitish testaceous, the three following seg- 

 ments infuscated, the three last segments with a whitish bloom 

 and a small rectangular denudated fuscous spot before the middle. 

 Head considerably longer than broad and longer than the 



