516 LIST OF DIPTERA. 



than those elsewhere: feelers tawny; bristle black; chest brown, 

 clothed with tawny down, adorned with two yellow stripes, these are 

 connected by two oblique bands with the sides, which like the 

 breast are yellow : scutcheon yellow, fore border brown : abdomen 

 bright tawny, elliptical, much longer and broader than the chest, 

 paler at the base ; a pitchy mark on the disk and on each side of 

 every segment: legs yellow; hips and thighs tawny; tips of claws 

 black : wings tawny, gray alo*ng the hind borders, brown at the tips, 

 and adorned with a brown band across the middle ; wing-ribs and 

 veins tawny, the latter pitchy along the hind borders and at the tips ; 

 poisers tawny, with green knobs. Length of the body 6 lines ; of 

 the wings 15 lines. 



a. Para. Presented by J. P. George Smith, Esq. 



Sargus Haterius, n. s., fem. Flavus, thoracis vittis tribus fuscis, 

 abdomine fusco fasciato, antennis fulvis, pedibus flaws, alls cine- 

 reis ad costamfulvis. 



Head yellow, with a brown stripe between the eyelets and the 

 feelers, clothed with black hairs on the crown : eyes black ; facets 

 very small : feelers tawny ; bristle black : chest brown, clothed with 

 tawny down, adorned with two yellow stripes ; sides and breast yel- 

 low ; scutcheon yellow ; fore border brown ; abdomen yellow, clothed 

 with tawny down, broader and a little longer than the chest ; a broad 

 irregular brown band on the fore border of each segment: legs yel- 

 low ; tips of claws black : wings gray, tawny along the fore borders : 

 wing-ribs and veins ferruginous; poisers yellow. Length of the 

 body 7 lines ; of the wings 15 lines. 



a. Venezuela. From Mr. Dyson's collection. 



Group II. 



Sargus gemmifer, n. s. Cyaneo-viridis, abdomine cupreo, ventre 

 purpureo, antennis pedibusquefulvis, his piceo vittatis, alis nigro- 

 fuscis. 



Head piceous, shining, pale tawny beneath : eyes piceous ; 

 feelers tawny ; bristle black : chest bright bluish green ; breast less 

 bright, varied with purple: abdomen brilliant copper colour ; under- 

 side purple : legs tawny, striped with pitch colour, clothed^ith taw- 

 ny down : wings blackish brown, paler along the hind borders ; 

 wing-ribs and veins black ; poisers tawny. Length of the body 9 

 lines; of the wings 16 lines. 



a. Silhet. From Mr. Sowerby's collection. 







