SUBFAMILY MESEMBRINELLINAE 83 
parafaciale orange, with golden pollen, 1.8 in width oppo- 
site lunule and but little narrower below; faciale with short 
orange brown setae for about one-third the distance from the 
vibrissa to the antennal base; vibrissae slightly above the oral 
margin and set 4.4 apart; antenna orange to orange brown, 
third segment twice as long as second and reaching four-fifths 
the distance to the vibrissa; palpus orange, 3.5 in length; 
arista orange brown at base, darker apically, the ciliation dark 
brown; back of head dark brown to black, silvery yellowish 
pollinose, the postorbits silvery, with one row of postocular 
eilia and with yellowish hair. 
Thorax with dorsum dark brown anteriorly and laterally, 
with brown pollen, and with indistinct longitudinal stripes on 
dorsum; pleura with golden brown pollen; humerus with three 
humeral bristles, and black hair dorsally, golden hair laterally; 
preacrostichal bristles two or three, if three, then the foremost 
weak, the posterior one set 4.0 before the suture; hindmost pre- 
dorsocentral bristle set 2.4 before the suture; preintraalar bris- 
tles two or three, if three, then the foremost weak and often out 
of line with the normal series; postacrostichal bristle one; sterno- 
pleural bristles three; dorsum, posterior and dorsal margins of 
mesopleuron, and upper half of sternopleuron with fine black 
hair, elsewhere the fine hair is tawny to golden; pteropleural 
tuft of hair orange; sclerites at wing base orange except lesser 
ampulla which is black; tympanic ridge with fine orange hair; 
prosternum with orange hair; thoracic spiracles with orange 
hair, the metathoracic spiracle with long fine orange hair on the 
ventral margin; under surface of scutellum with abundant short 
orange hair, basal lateral bristle strong and with a lesser lateral 
Price anterior to it, discal bristle set rather postenor ya from 
normal position. 
Legs deep orange, darker apically; coxae and trochanters with 
fine orange hair; chaetotaxy as in bicolor. 
Wing brown basally and yellowish anteriorly, strongly in- 
fuseated along the veins but the cells paler toward center; 
basicosta and subcostal sclerite orange brown, the latter with 
some long fine orange brown hair; costal sections 2 to 6 in the 
proportions 140:160:140:70:44; upper squamal lobe brown with 
dark brown rim, the lower lobe orange brown with brown 
pubescence. 
Abdomen orange brown with metallic bluish to purple reflec- 
tions except at base, mostly shining, but with golden to golden 
brown pollen basally and ventrally in certain lights; first and 
second segments without lateral bristles, third and fourth seg- 
