LIMNOPHILA. 203 



/•"Wings with some indistinct clouds along the second longitudinal vein 



10 1 and on the central cross- veins. 13 luteipennis 0. S. 



I Wings of a uniform coloring, without spots or clouds. 11 



,.. ( Halteres yellow. 15 inornata, n. sp. 



( Knob of the halteres brownish. 14 contempta, n. sp. 



r Discal cell very much elongated, its inner end conspicuously anterior 



19 j to the inner end of the first posterior cell. 11 areolata 0. S. 



] Discal cell of the ordinary size ; its inner end not anterior to the inner 

 ^ end of the first posterior cell. 13 



r Petiole of the first submarginal cell not longer than the great cross- 

 3 ! vein. 14 



1 Petiole of the first submarginal cell distinctly longer than the great 

 *- cross-vein. 15 



r Fetiole of the second posterior cell not longer than this cell. 



_. ! 5 tenuicornis, n. sp. 



i Petiole of the second posterior cell three or four times longer than 

 L this cell. 17 brevifurca 0. S. 



1 . ( Thorax gray, with four brownish stripes (L. ultima). 9 



( Thorax yellowish or brownish. 16 



r Antennae of the male much longer than those of the female ; thorax 



- fi j brown above. 7 tenuipes Say. 



| Antennse of the same length in both sexes ; thorax reddish or yellow- 

 *» ish above. 17 



., 7 ( Thorax shining above. 8 recondita, n. sp. 



X Thorax opaque above ; front gray. 9 imbecilla 0. S. 



- s ( Thorax gray, or brownish-gray. 19 



X Thorax yellow, or brownish-yellow. 24 



19 



( Great cr.oss-vein usually at the inner end of the discal cell. 20 



X Great cross-vein nearer to the middle of the discal cell. 21 



20 ( Wings spotted with brown. 23 montana 0. S. 

 X Wings immaculate. 24 cubitalis, n. sp. 



21 ( Hind tarsi white. 6 niveitarsis, n. sp. 

 ( Hind tarsi not white. 22 



99 j Wings spotted with brown. 2 unica, n. sp. 



Fifth longitudinal vein and central cross-veins margined with narrow 

 23 1 brown clouds. 21 rufibasis 0. S. 



Wings not spotted with brown. 23 



j 



v. Wings unicolorous. 16 fratria, n. sp. 



{Petiole of the first submarginal cell twice the length of the great cross- 

 vein, and conspicuously arcuated. 10 toxoneura 0. S. 

 Petiole of the first submarginal cell not longer than the great cross- 

 vein. 25 

 s Antennae of the male more than twice the length of the thorax. 

 25 1 4 poetica, n. sp. 

 ( Antennse of the male shorter than the thorax. 12 adusta 0. S. 

 2g ( Body gray. 25 quadrata 0. S. 

 \ Body yellow. 26 lenta 0. S. 



