168 CHIHONOMID^. 



Male and Fern. Grass -green. Thorax with three testaceous -green 

 stripes. Wings limpid -white ; veins and halteres white. Legs pale 

 green, long, slender ; tibia with black tips ; tarsi black ; first and second 

 joints white, Hack towards the tips. 



Not rare. (E.) 



66. imbecilis, n. Mas et Fcem. viridis, thorace vittis tribus luteis, 

 alls albo-limpidis, venis albis apud costam testaceis, pedibus pallide vi- 

 ridibus. Long. 2| 3 ; alar. 3-4 lin. 



Male and Fern. Green. Thorax with three luteous stripes. Metatho- 

 rax and pectus luteous. Wings limpid-white ; costal, radial, and cubital 

 veins pale testaceous, the rest white. Halteres white. Abdomen with 

 white pubescence. Legs pale green, long, slender. Male. Antennae with 

 pale brown plumes. 



Not rare. (E.) 



67. dorsalis? Meig. Zw. i. 25. 10 (1818); Stseg.; Zett. Mas et 

 Fcem, pallide viridis, thorace vittis tribus luteis, alis limpidis ; Mas, ab- 

 dominis segmentis fusco-fasciatis ; Fcem. abdomine fusco, segmentorum 

 marginibus posticis viridibus. Long. 31; alar. 5 lin. 



Male and Fern. Pale green. Thorax with three luteous stripes, the 

 middle one double. Metathorax brownish. Wings limpid ; costal, ra- 

 dial, and cubital veins and discal transverse veinlet testaceous, the other 

 veins whitish. Halteres white. Legs pale green, slender ; tips of the 

 tibiae, of the joints of the tarsi, and of the fore femora, and base of 

 the fore tibiae, blackish. Male. Antenna? with brown plumes. Abdo- 

 minal segments with brown bands, ichich are broadest towards the tip. 

 Fem. Abdomen brown; hind borders of the segments pale green. 



Not common. (E.) 



68. paganus? Meig. Z\v. vii. 7. 135 (1838). Var.? Mas et Fcem. 

 prasinus, thorace vittis tribus vix consjoicuis testaceis, alis albo-limpidis, 

 venis albis, tibiis et tarsorum articulis apice nigricantibus. Long. 2| 3|- ; 

 alar. 8|4 lin. 



Var.? Male and Fem. Grass-green. Thorax with three almost obsolete 

 testaceous stripes. Wings limpid - white ; veins white. Halteres pale 

 green. Abdomen rather long. J^egs pale green, long, slender ; tips of 

 the tibiae and of the joints of the tarsi blackish. Male. Antennae with 

 brown plumes. 



Not common. (E.) 



69. obreptans, n. Fcem. viridis, thorace vittis tribus luteis, alis 

 limpidis, venis albidis, femoribus anticis tibiisque apice tarsisque totis ni- 

 gricantibus. Long. 2 ; alar. 4 lin. 



Fem. Pale green. Thorax with three luteous stripes. Pectus and 

 metathorax pale luteous. Wings limpid ; veins whitish. Halteres pale 

 green. Abdomen deep grass -green. Legs pale green, long, slender; 

 tarsi and tips of the tibiae and of the fore femora blackish. 



Not common, (E.) 



