THE CANADIAN ENTOMOLOGIST. 



costa deeply sulcate throughout, considerably expanded at the ocellus, 

 above and below which it is constricted, the sides below the lower con- 

 striction diverging as they approach the clypeus, which they fail to reach. 

 Lateral carina of the face moderately prominent, reaching the clypeus, but 

 less marked in the upper than in the lower portion. Eyes moderately 

 prominent, as long as the genal groove ( £ ), distinctly shorter ( 9 ). 

 Antennas about four-fifths ( 4 ) or five-sevenths ( 9 ) as long as the hind 

 femora, grayish brown, slightly darker apically. Pronotum expanding 

 moderately on the metazone, posterior margin rectangulate, the angle 

 but little rounded. Greatest width of disk about four-fifths ( o* ) or five- 

 sixths (?) of the length. Prozone not more than half as long as the 

 densely-punctate metazone ; the latter gently convex antero-posteriorly and 

 very broadly convex transversely- Median carina a raised line on the 

 metazone, feebly cristate on the prozone, the anterior lobe nearly twice as 

 long as the posterior, the notches, especially the anterior, rather shallow. 

 Lateral carina? distinct only on the anterior part of the metazone. Sides 

 of the pronotum with two whitish spots, the upper extending across the 

 whole of the prozone, the lower between the two posterior sulci. A dark 

 brown spot separates these, and extends to the anterior margin of the 

 prozone. Tegmina rather long, but of average width, quite like those of 

 T. vinadata in form, extremely variable in markings, sometimes being 

 as strongly banded as average specimens oivinculata, sometimes perfectly 

 immaculate, with an ill-defined clouding of the basal fourth. Ground 

 colour ashy or light brownish gray, in average specimens with distinct 

 indications of bands, a basal one occupying the basal third or fourth, and 

 a median band generally represented by an irregular but fairly solid spot. 

 Apical third semitransparent, often immaculate, but generally with a vari- 

 able number of scattered spots, which only in very distinctly marked 

 specimens form any semblance of a band. Wings very similar to those of 

 vinadata, slightly less than twice as long as broad. Disk very pale 

 yellow. Fuscous band nearly equal, with both inner and outer margins 

 arcuate; width about one-sixth, or a little more, the length of the wing ; 

 the spur extending about half way to the base. Apical portion of wing 

 hyaline, immaculate ; many of the veins whitish. Outer face of hind 

 femora very light gray, with a pale yellowish preapical band, and with 

 more or less distinct indications of a basal transverse fuscous band, and 

 median and post-median oblique bands, these bands being generally well 



