CHIRONOMUS. 159 



pallide viridis, thorace vittis tribus latissimis testaceis, alls sublimpidis, 

 vents pallide testaceis, halteribus pallide viridibus, abdoraine prasino, 

 pedibus testaceis, femoribus tibiisque posterioribus pallide viridibus. 

 Long, li ; alar. 3 lin. 



Fern. Pale green. Thorax with three very broad testaceous stripes. 

 Pectus testaceous. Wings nearly limpid ; veins pale testaceous. Hal- 

 teres pale green. Abdomen grass-green. Legs testaceous ; posterior 

 femora and posterior tibia? pale green. 



Not common. (E.) 



25. prsecox, Wied. ; Meig. Zw. i. 49. 64 (1818). Mas et Fcem. 

 niger, thorace cinereo vittis tribus nigris, alis pubescentibus subcinereis, 

 venis albidis apud costam testaceis, halteribus albis, pedibus fuscis aut 

 testaceis, femoribus tibiisque apice tarsisque nigris. Long. 2-1-3 ; alar. 

 4-4i lin. 



Male and Fern. Black. Thorax grey, loiih three black dorsal stripes. 

 Wings pubescent, slightly greyish ; costal, radial, and cubital veins tes- 

 taceous, the rest whitish. Halteres white. Abdomen pubescent. Legs 

 brown or testaceous, long, slender, minutely pubescent ; tarsi and tips 

 of the femora and of the tibiae black. Male. Antennae with black 

 plumes. 



Common. Appears in April. 



26. chloris? Meig. Zw. i. 28. 17 (1818); Mcq. ; Stseg. Fcem. 

 niger, thorace cano-testaceo vittis tribus nigris, alis albo-limpidis, venis 

 albis apud costam testaceis, halteribus albidis, segmentorum abdominalium 

 marginibus posticis canis, pedibus nigricantibus, tibiis posterioribus fe- 

 moribusque testaceis, apice nigris. Long. 3 ; alar. 6 lin. 



Fern. Black. Thorax hoary -testaceous, with three black stripes, the 

 middle one double. Pectus hoary. Wings limpid-white ; costal, radial, 

 and cubital veins testaceous, the rest white. Halteres whitish. Hind 

 borders of the abdominal segments hoary. Legs blackish ; femora and 

 posterior tibia3 testaceous, with black tips. 



Not common. (E.) 



27. sulphuricollis ? Meig. Zw. vi. 246. 79 (1830). Fcem. niger, 

 thorace fulvo vittis tribus nigris, alis limpidis, venis albidis apud costam 

 testaceis, halteribus testaceis apice nigris, pedibus testaceis, femoribus 

 tibiisque et tarsorum articulis apice nigricantibus. Long. 2 ; alar. 4 lin. 



Fern. Black. Thorax tawny, with three black stripes. Wings limpid ; 

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

 testaceous, with black tips. Legs testaceous ; tips of the femora, of 

 the tibiae, and of the joints of the tarsi, blackish. 



Eare. In Mr. Saunders' collection. (E.) 



28. nigroviridis ? Mcq. H. N. D. i. 51. 18 (1834); Meig.; Gim.; 

 Stseg. ; Zett. Mas et Fcem. viridis, thorace vittis tribus fuscis, alis lim- 

 pidis, venis albis apud costam testaceis, venula discali fusca, halteribus 

 albidis, abdomine fasciis latis fuscis, pedibus pallide viridibus, femoribus 



