164 CHIRONOMID^E. 



que totis, necnon tibiis posterioribtis tarsisque apice fuscescentibus. Long. 

 2| ; alar. 4 lin. 



Male. Black. Antennae with black plumes. Wings limpid-white ; 

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

 pale testaceous. Legs testaceous; femora, fore tibia, and tips of the 

 tibiae and of the tarsi, brownish. 



Not common. In Mr. Saunders' collection. (E.) 



48. opacus? Meig. Zw. vi. 249. 90 (1830). Mas, ater, alis albo- 

 limpidis, venis halteribusque albis, pedibus fuscis. Long. 1 ; alar. 2 lin. 



Male. Deep black. Antennae with black plumes. Wings limpid- 

 white ; veins and halteres white. Legs brown. 

 Not common. (E.) 



49. albipes? Zett. Dipt. Scand. ix. 3588. 124 (1850). Mas et 

 Fcem,. niger, antennis basi flavis, alis pubescentibus sublimpidis, venis 

 pedtfruscpe albidis. Long. 2-3 ; alar. 3-4 lin. 



Male and Fern. Black. Antennae pale yellow towards the base. 

 Wings nearly limpid, pubescent ; veins whitish. Halteres white. Legs 

 whitish, slender. Male. Antennae with black plumes. 



Generally distributed. (E. S. I.) 



50. inopertus, n. Mas, niger, alis liinpidis, venis albidis apud 

 costam testaceis, abdomine pedibusque sordide viridibus. Long. 2 ; alar. 

 3 lin. 



Male. Black. Antennae with black plumes. Wings limpid ; costal, 

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

 whitish. Abdomen and legs dull green. 



Not common. (E.) 



51. pedellus, D. G. Ins. vi. 146. 17 (1783); Latr.; Meig.; Mcq.j 

 Zett.; Gim.; Staeg, fuscus,~L. littoralis,^^.; Geoff. cantans,1$.; 

 Meig. Kl. Zw. Mas et Fcem. niger, nitidus, alis albo-limpidis, abdomine 

 viridi apicem versus nigro, pedibus viridibus, femoribus tibiis et tarsorum 

 articulis apice nigris. Long. 3-4 ; alar. 4-5 lin. 



Male and Fern. Black, shining. Wings limpid- white ; veins whitish. 

 Halteres grass -green. Abdomen grass -green, black towards the tip, 

 clothed with white pubescence. Legs pale green ; tips of the femora, 

 of the tibite, and of the joints of the tarsi, black. Male. Plumes of the 

 antennae brown, white towards the tips ; fore tibiae towards the tips, 

 and fore metatarsi towards the base, black. Fern. Thorax green, with 

 three black stripes. 



Generally distributed. (E. S. I.) 



52. fuscipennis? Meig. Zw. i. 36. 31 (1818). Var.? Fcem. 

 viridi-niger, nitidus, alis subfuscis basi limpidis, venis halteribusque 

 albidis, his apice nigricantibus, pedibus testaceis, tibiis apice nigris, 

 femoribus anticis nigro-cinctis. Long. 3 ; alar. 6 lin. 



Var.? Fern. Greenish-black, shining. Palpi and antennae testaceous. 

 Wings indistinctly tinged with brown, limpid towards the base ; costal, 



