DIPTERA. 203 
Exrrasis tumEns, Plate 5, fig. 1. 
Fulva, capite thoracisque disco nigris, abdominis segmentorum piceo fas- 
ciatis, antennis nigris basi fulvis, pedibus fulvis, alis subcinereis. 
Black, thickly clothed with short tawny hairs: eyes black; the facets 
very small: feelers black, tawny at the base: scutcheon and sides of the 
chest tawny; breast mostly tawny: abdomen tawny, increasing in breadth 
from the base till near the tip, a little longer and broader than the chest ; 
each segment adorned with a pitchy band which is widened and somewhat 
angular towards the fore border: legs tawny: wings pale gray ; wing-ribs 
and veins tawny ; the latter partly black; scales pale gray ; poisers tawny. 
Length of the body 5 lines ; of the wings 10 lines. 
Brazil. 
Genus HENOPS, Jlliger. 
HeENops Basauts, Mas. 
Piceus, capite nigro, abdomine fulvo maculis ulringue discoque nigris, 
segmentorum marginibus posticis albis, antennis nigris, pedibus fulvis, 
Semoribus bast tarsisque nigris, alis limpidis. 
Head black: feelers black: chest and breast pitchy: chest thickly 
clothed with short pale tawny hairs: abdomen tawny with a row of black 
spots on each side ; hind borders of the segments white ; disk mostly black 
Sor full half the length from the base ; underside with an interrupted slender 
black band on the fore border of each segment : legs tawny ; hips, thighs for 
half the length from the base, and feet black: wings colourless ; wing-ribs 
pitchy ; veins dark tawny; scales white. Length of the body 2 lines; of 
the wings 4 lines. 
New South Wales. 
HeEnops cosratis, Mas. 
Piceus, capite nigro, thoracis margine vittisque duabus fulvis, abdominis 
segmentorum marginibus posticis albidis, alis limpidis. 
Head black : feelers tawny : chest and breast pitchy, clothed with pale 
tawny hains ; chest adorned with a tawny border and two tawny stripes : 
