CHIRONOMUS. 159 



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

 venis pallide testaceis, halteribus pallide viridibus, abdomine prasino, 

 pedibus testaceis, feraoribus tibiisque posterioribus pallide viridibus. 

 Long. 1^; 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 tibiae pale green. 



Not common. (E.) 



25. prsecox, Wied. ; Meig. Z\v. 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^-3 ; alar. 

 4-4i lin. 



Male and Fern. Black. Thorax grey, with 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. ; Stasg. 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, tcith 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 tibiae 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. 



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



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

 Stoag. ; 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 



