LIMNOBIA. 93 



marks in the four corners ; halteres pale, with brown knobs ; feet 

 ferruginous-yellow, hairy ; tips of the femora and last joints of the 

 tarsi brownish. Abdomen ferruginous-yellow, margins of the seg- 

 ments brown. Wings tinged with yellow ; subcostal cell more 

 saturate yellow ; a brown ring at the origin of the prosfurca ; 

 another, smaller one at the inner end of the subcostal cell ; a 

 third, sometimes indistinct one, at the posterior end of the 

 stigma ; the anterior end is also marked with a brown spot ; a 

 brown shade along the margin of the wing, between the stigma 

 and the apex ; tips of the longitudinal veins clouded ; a small 

 brown cloud at the inner end of the first basal cell. Tip of the 

 auxiliary vein opposite the inner end of the submarginal cell; 

 the cross-vein at this tip. 



Bab. Washington, D. C. ; Trenton Falls, 3ST. Y. ; Upper Wis- 

 consin River (Kennicott). July, August. 



6. L.. parietina 0. S. % and 9- — Fuscescens,thoracefusco-vittato; 

 alis longis, versus apicem latis ; earum nebulis, strigis et maculis pallide 

 fuscis ; stigmate pallido, longo ; vermis transversa marginali ab aux- 

 iliaris et prima? longitudinalis apicibus aeque distans. 



Brownish, thorax with brown stripes ; wings long, broad towards the apex ; 

 with pale brown clouds, streaks, and spots ; stigma long, pale ; the 

 marginal cross-vein at an equal distance from the tips of the auxiliary 

 and of the first longitudinal veins. Long. corp. 0.6 — 0.65. 



Stn. Lnnnobia parietina 0. Sacken, Proc. Ac. Nat. Sc. Phila. 1861, p. 289. 



Head, rostrum, and palpi dark brown ; antennae pale, joints 

 of the flagellum brown at the basis. Thorax yellowish, sericeous, 

 with three brown stripes ; the intermediate one is divided in two 

 by a longitudinal pale, sometimes hardly apparent line; scutellum, 

 metathorax, and pleurae brownish ; halteres infuscated, whitish at 

 the tip ; feet tawny, tip of the femora brown ; a pale band before 

 it ; tarsi brown. Abdomen brownish, "posterior margins of the 

 segments and a longitudinal stripe along the middle of the back, 

 pale. Wings with clouds on all the cross-veins and with pale 

 brown irregular clouds, spots, and streaks in almost all the cells ; 

 in the submarginal and the second posterior cells, these clouds 

 assume the shape of an inverted Y ; a trace of a similar figure is 

 visible in the third posterior cell. The stigma is very long, pale ; 

 the marginal cross-vein is a little anterior to its middle, and nearly 

 in the middle of the distance between the tip of the auxiliary and 



