418 THE CANADIAN ENTOMOLOGIST 



hair. That half of genae nearest eye-orbits with scattered hairs 

 arranged in two or three irregular rows, a few stouter ones just 

 above transverse impression. Palpi dark. 



Chcetotaxy. — Lateral verticals absent; vibrissas inserted just 

 above line of oral margin. 



Thorax. — Vestiture of metanotum consisting of short, slightly 

 reclinate, bristly hairs. Sutural ridge with a few scattered hairs 

 behind last notopleural bristle. Hairs covering anterior spiracle 

 mostly yellowish gray, but their bases dark forming an irregular 

 band; those on anterior margin of posterior spiracle dark brown; 

 spiracular cover pale yellowish. Epaulets dark. 



Wings. — Bend of fourth vein normally a little less than a 

 right angle; anterior cross-vein much more basal than end of first 

 longitudinal; third vein bristly; costal spine vestigial; section V of 

 costa about one half length of section 3; alulae fringed with hair; 

 cal} ptrae whitish, outwardly fringed with white hair. 



Legs. — Dark. Posterior trochanter hairy, without a distinct 

 "brush"; in profile a slender spine can often be seen distally on 

 the ventral surface but is usually obscured by hair and may be 

 absent; femur sub-spindle shaped, sometimes very slightly arched, 

 clothed beneath with long, fine hairs that both anteriorly and 

 posteriorly form a sort of beard, anterior face with three rows of 

 bristles, those of the intermediate row short and stout, not present 

 distally; tibia usually slightly curved, anterior and posterior faces 

 each with a beard of equally dense, long, coarse, black hairs on 

 distal four-fifths; tarsus shorter than tibia, the fourth segment longer 

 than one-half-fifth. Middle coxa with a single row of bristles; 

 femur clothed beneath on proximal one-half to two-thirds with a 

 beard-like growth of long, fine hairs, anterior ventral row of short,. 

 scattered bristles complete, posterior row represented only by a 

 distal comb extending proximally to the long hair. Anterior coxa 

 with two rows of bristles. 



Chcetotaxy. — Anterior dorsocentrals strongly reclinate, but 

 projecting well above short vestiture of prescutum; acrostichals 

 absent, though most posterior pair is rarely weakly developed; 

 inner presuturals absent, or if present inconspicuous; four or five 

 pairs of postsutural dorsocentrals, two posterior pairs that are long 



