LIST OF DIPTERA. 21 



Chironomus trichomerus, n. s., mas. Viridi-Jlavus, abdomine cili- 

 ato, antennis pedibusque flavis, his pilosis, alis albidis ciliatis. 



Pale greenish yellow : sides of abdomen fringed with hairs : 

 eyes black : feelers and legs yellow, the latter thickly clothed with 

 short hairs : wings whitish, deeply fringed ; poisers pale yellow. 

 Length of the body 1 line ; of the wings 2 lines. 



a. St. Martin's Falls, Albany River, Hudson's Bay. Presented by 

 G. Barnston, Esq. 



Chironomus brunneus, n. s., mas. Fuscus, thorace grisso trivittato, 

 abdomine pedibusque flavo-fuscis, femoribus basi Jlavis, alis 

 limpidis. 



Head and chest brown, the latter with the usual three stripes 

 of a pale gray colour : abdomen yellowish brown : feelers brown : 

 legs yellowish brown ; thighs yellow at the base : wings colourless ; 

 veins and poisers yellow. Length of the body If line ; of the wings 

 3^ lines. 



a. St. Martin's Falls, Albany River, Hudson's Bay. Presented by 

 G. Barnston, Esq. 



Chironomus anticus, n. s. Sericeo-albus, thoracis vittis fulvis, ab- 

 domine fiavo hirto, apice fulvo, pedibus Jlavis, femoribus, tibiis, 

 tarsorumque articulis apice fulvis, metafemorihus fulvo cinctis, 

 alis albis, apice fulvis. 



Chest a little produced in front, silky white, with the usual 

 three stripes of bright tawny colour : abdomen pale yellow, hairy ; 

 two last segments dull tawny ; legs pale yellow, hairy ; a tawny band 

 round each hind thigh ; tips of the thighs, of the shanks, and of the 

 joints of the feet, tawny ; wings whitish from the base to the middle, 

 pale tawny thence to the tips, slightly fringed ; poisers pale yellow, 

 Length of the body 2\ lines ; of the wings 4 lines. 



a. Georgia. From Mr. Abbot's collection. » 



Chironomus pellucidus, Barnston, MSS., mas. Flavo-viridis, 

 pallidus, hirtus, antennis subfuscis, pedibus pilosis, alis limpidis, 

 ciliatis. 



Body pale yellowish green : feelers pale brown : abdomen and 

 legs very hairy : wings colourless, hairy, deeply fringed ; veins dull 

 yellow ; poisers pale yellow. Length of the body | line ; of the 

 wings If line. 



a. St. Martin's Falls, Albany River, Hudson's Bay. Presented by 

 G. Barnston, Esq, 



