Genus Corethra. 
289 
that genus; fork-cells long ; veins scaled with hairy scales, with 
a fringe composed of long and short lanceolate scales and 
Fig. 294. 
Genus Corethra. 
a, Scutellum; b, haltere; c, female lamellae; d, wing border; e, venation, and 
e', scales of wing ; f, enlarged wing scale; g, proboscis and palpi; h, basal joints 
of antenna (9); i, metatarsal and tarsal joints ; j, ungues of 9. 
numerous hair-like scales along the border, surface of the wing 
w r ith minute curved hairs; border-scales shorter than those of 
the veins, the basal lobes of the wing (Fig. 295) are also character- 
VOL. ii. u 
