158 CHIRONOMID^. 



19. prasinatus? Staeg. Dipt. Dau. 568. 26 (1840); Zett. 3Ias, 

 viridis, thorace vittis iril>Hs nigris, alls Umpidis, vents albidis cqmd cos- 

 tam testaceis, lialteribus albis, pedibus pallide testaceis. Long. \\ ; 

 alar. 2^ lin. 



Male. Green. Antennse with blackish plumes. Thorax lolth three 

 Hack stripes. Wimjs limp id ; costal, radial, and cubital veins testaceous, 

 the rest lohitlsh. Halteres white. Legs pale testaceous. 



Not common. (E.) 



20. pusio? Meig. Zw. vi. 256. 117 (1830). Mas, obscure viridis, 

 thorace vittis tribus niffris, ulis Umpidis, venis j^alUde testaceis, lialteribus 

 pallide viridibus, pedibus pallide testaceo-viridibus. Long. If; alar. 

 3 lin. 



Male. Dark green. Thorax with three black stripes. Wings limpid; 

 veins pale testaceous. Halteres pale green. Legs pale dull testaceous- 

 green. 



Not common. (E.) 



21. longipes? Stteg. Dipt. Dan. 570. 38 (1840); Zett. Fcem. 

 viridis, thorace vittis tribus testaceis, alis albido-limpidis, venis halteri- 

 busque albidis, illis apud costam fuscescentibus, abdomine fusco, segmen- 

 tornm marginibus posticis subcanis, pedibus testaceis, tarsis fuscescen- 

 tibus. Long. 2i ; alar. 4 lin. 



Var. ? Fern. Green. Thorax with three testaceous stripes. Wings 

 whitish, limpid ; costal, radial, and cubital veins, and discal transverse 

 veinlet brownish, the rest whitish. Halteres whitish. Abdomen pubes- 

 cent, dark brown ; hind borders of the segments slightly hoary. Legs 

 testaceous; tarsi brownish. 



Not common. (E.) 



22. perlevis, n. Fcem. viridis, thorace vittis tribus testaceis, alis 

 subcinereis, venis albidis apud costam testaceis, halteribus albis, abdo- 

 mine fusco, pedibus pallide testaceis. Long. 1 ; alar. 2 lin. 



Fern. Green. Thorax with three testaceous stripes. Wings greyish ; 

 costal, radial, and cubital veins testaceous, the rest whitish. Halteres 

 white. Abdomen brown. Legs pale testaceous. 



Not common. (E.) 



23. viridis, Wies, MSS. ; Mcq. ; H. N. D. i. 52. 21 (1834); 



Meig. ; Sta3g. ; Zett. Mas et Foem. viridis, thorace vittis tribus tes- 

 taceis, alis Umpidis, venis albidis apud costam testaceis, halteribus albis, 

 pedibus pallide testaceis, tibiis et tarsorum articuUs apice nigricantibus. 

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



Male and Fem. Green. Thorax with three testaceous stripes. Wings 

 limpid ; costal, radial, and cubital veijis testaceous, the rest whitish. 

 Halteres white. Legs pale testaceous ; tips of the tibi;ie and of the 

 joints of the tarsi blackish. Male. Antenna) with brown plumes. 



Generally distributed. (E. S. I.) 



24. nervosus? Stivg. Dipt. Dan. 5G7. 25 (1840); Zclt. Intern: 



