LIST OF DIPTERA. 1091 



portion of the fore part yellowish, rather flat, composed of larger fa- 

 cets than those elsewhere : sucker black, clothed with tawny hairs ; 

 palpi black, beset with black bristles : feelers ferruginous, hardly 

 more than half the length of the face ; third joint conical, dark 

 ferruginous, black towards the tip, much longer than the second ; 

 bristle black, slender, much more than twice the length of the third 

 joint, feathered on both sides with very long hairs : chest tawny, 

 thickly crowded with small brown spots, one round the base of each 

 hair ; sides paler and blending with the hoary colour which adorns 

 the breast ; scutcheon armed with some long black spines : abdo- 

 men pitchy, spindle-shaped, narrower but not longer than the chest, 

 adorned with hoary reflections above and beneath : legs tawny, 

 clothed with black hairs and bristles ; feet thickly beset with short 

 black bristles ; claws black : wings brown, darker on the fore bor- 

 der from the middle to the tip and along the borders of the veins ; 

 wing-ribs pitchy ; veins black, pitchy at the base ; lower cross-vein 

 clouded with brown, nearly perpendicular, slightly curved inward 

 in the middle part of its course, nearly four times its length distant 

 from the middle cross-vein ; poisers pale tawny, with yellow knobs. 

 Length of the body 4|- lines ; of the wings 9 lines, 

 a. Brazil. 



Helomyza suffusa, n. s., fem. Fulva, facie Jlava, abdominis apice 

 et segmentorum tertii et quarti marginibus posticis piceis, pal- 

 pis antennis pedibusque fulvis, tibiis anticis apice tarsisque 

 piceis, alis fulvisfusco vittatis et bimaculatis. 

 Body tawny, clothed with black hairs and bristles : face 

 pale yellow, its sides without bristles ; epistoma not prominent : 

 eyes red ; fore part rather flat, its facets larger than those elsewhere : 

 sucker tawny, clothed with tawny hairs ; palpi tawny, beset with 

 black bristles: feelers tawny, shorter than the face ; third joint co- 

 nical, rounded at the tip, more than twice the length of the second; 

 bristle black, slender, feathered on each side with moderately long 

 hairs, full thrice the length of the third joint, tawny at the base : 

 breast paler than the chest, somewhat yellowish : abdomen obconi- 

 cal, shorter and narrower than the chest ; tip and hind borders of 

 the third and fourth segments pitchy : legs pale tawny, clothed with 

 black hairs and bristles ; feet and tips of fore shanks pitchy ; claws 

 black : wings tawny, darker at the base, near which a brown stripe 

 commences and runs along the border to the tip, which it includes 

 with the exception of the hind border ; two brown spots enclose the 

 middle and lower cross-veins ; wing-ribs tawny ; veins black, tawny 

 at the base ; lower cross-vein nearly perpendicular, very slightly 

 curved inward in the middle part of its course, distant by much 



