THE CANADIAN ENTOMOLOGIST. 381 



H. A black line on the fronto-nasal suture ; hamular proc- 

 esses short and broad, directed mediad and ventrad. 



I. Literal thoracic bands each divided into a superior 

 and inferior spot ; dorsal thoracic bands reduced 

 to a pair of small elongate spots narrowed at both 

 ends and not reaching the antealar sinus ; superior 

 appendages with the inner margin distinctly sinu- 

 ate in dorsal view, the apices rounded or bluntly 

 angulate, seldom with a terminal tooth, superior 

 carina minutely denticulated or 

 smooth . .7. mterriipta^ n. sp. 



II. Lateral thoracic bands not divided. 



J. Dorsal thoracic bands reduced to a pair of small 

 pale, often almost obsolete, streaks, which do 

 not nearly reach the antealar sinus ; lateral 

 thoracic bands not more than i mm. broad, 

 nearly or quite straight. 



K. Superior appendages with a low basal 

 tubercle on the ventro-internal surface 

 (best seen in an oblique view from 

 above) ; inner margin in dorsal view 

 gently sinuate, in profile slightly con- 

 cave before the middle, beyond which 

 it forms a prominent more or less 

 obtusangulate inferior carina ; breadth 

 at middle about twice that of the ex- 

 treme base, thence narrowing gradually 

 to the more or less acute apices, which 

 terminate in a small spine ; superior 

 carina moderately elevated before the 

 apex, with a few minute denticles ; in- 

 ferior appendage about three-fifths as 

 long as the superiors ; lateral thoracic 

 bands about i mm. broad below, nar- 

 rower above 8. interna, n. sp. 



KK. Superior appendages without any indica- 

 tion of a ventro-internal basal tubercle. 



