144 THE CANADIAN ENTOMOLOGIST. 



conspersa it is distinguished by the sub-rotundate vertex, the more 

 uniformly-coloured pronotum, and the colour of the disc of the wings and 

 of the hind femora. 



$ . Size very small (for this genus). Head rugulose ; vertex 

 elongate, rather deeply excavated, fastigium foveolate ; frontal costa 

 constricted dorsad, gently expanded ventrad, shallowly sulcate in the 

 vicinity of the ocellus ; eyes slightly prominent, elliptical, not equalling 

 the ventro-ocular portion of the gense ; antenna? short, distal section 

 gradually enlarged. Pronotum rugose on the prozona, punctate on the 

 metazona, slightly constricted centrally ; cephalic margin finely obtuse- 

 angulate, caudal margin rectangulate ; median carina moderately high, 

 arcuate on the prozona, narrowly cut by the transverse sulcus ; lateral 

 carina marked in the metazona, obscure and sinuous on the prozona ; 

 lateral lobes deep, the ventral margin sinuate cephalad. Tegmina rather 

 long, distal extremity truncate. Caudal femora heavy, genicular region 

 only slightly enlarged. General colour wood brown, varied and 

 sprinkled with black ; the distal portion of the tegmina black, which 

 tint also suffuses the pleurae and genicular lobes and outer face of the 

 caudal femora ; caudal tibise ultramarine blue, the genicular portion black, 

 the usual proximal ring greenish white. 



9 . Size small. Head with the fastigium shallowly foveolate ; 

 frontal costa expanded at the ocellus, shallowly sulcate in the portion 

 cephalad to this point ; eyes rather small, considerably smaller than the 

 infra-ocular portion of the gense. Pronotum with cephalic margin of the 

 lateral lobes subarcuate. 



General colour wood brown, the genicular portion of the caudal 

 femora suffused with blackish, which tint also forms several indistinct 

 transverse bars on the tegmina. Wings with the disc sulphur yellow ; the 

 arc pale blackish brown, not evanescent and not reaching completely 

 around the caudal margin of the wing or to the anterior margin, stigma 

 short, cephalic margin obscurely with blackish brown distad, proximal 

 area (except the above-mentioned margin) hyaline. 



Measurements : 6  9 • 



Length of body 14 mm. 22.5 mm. 



Length of pronotum 3.5 " 4.7 " 



Length of tegmina 16 " 19.5 " 



Length of hind femora 9.5 " 11.5 



Five specimens examined, two males, three females. 



i 1 



