158 LIST OF DIPTERA. 



on its back and occupying the scutcheon and adjoining part there is 

 a large nearly round deep black spot enclosed in a pale tawny rim : 

 breast hoary, clothed with white hairs: abdomen reddish brown; 

 hind borders of the segments yellowish white, thinly fringed with 

 short hairs of the same colour : legs ferruginous, clothed like the 

 chest with silvery hairs ; fore thighs piceous ; fore shanks pale taw- 

 ny, with black tips ; fore feet black : wings pale brown, rather 

 darker, and with a tawny tinge at the base and along the fore bor- 

 der ; veins piceous ; poisers ferruginous with tawny tips. Length 

 of the body 8 lines ; of the wings 16 lines. 



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



b. Columbia. Presented by M. Goudot. 



Tabanus bipartitus, n. s., fern. Rufus, capite flavo-albo, thorace ma- 

 cula picea fiavo circumdata, abdomine piceo basi rufo y pedibus 

 ferrugineis, tarsis anticis piceis, alis cinereis basi marginibusque 

 anticisfulvis. 



Head yellowish white, clothed with hairs of the same colour : 

 eyes black : palpi pale yellow ; lancets ferruginous : sucker piceous : 

 chest dull red, clothed with very short tawny hairs ; breast paler and 

 clothed with longer yellowish white hairs; the back of the chest, 

 like that of T. oculus, has a piceous spot enclosed in a pale yellow 

 rim : abdomen piceous, longer than that of T. oculus ; first and 

 second segments red, and there is a little red about the sutures of 

 the other segments ; legs ferruginous ; fore thighs rather darker ; 

 fore feet and tips of fore shanks piceous : wings gray, tawny at the 

 base and along the fore borders ; veins tawny at the base, piceous to- 

 wards the tips, where the two cross-veins are clouded with brown ; 

 poisers pale yellow. Length of the body 9| lines ; of the wings 14 

 lines. 



a. Honduras. From Mr. Miller's collection. 



Tabanus propositus, n. s., fern. Canus, capite flavo albo, pectore 

 albo, abdomine fulvo vitta macula apiceque piceis, pedibus fulvis, 

 alis subfulvis. 



Head yellowish white, clothed beneath with hairs of the same 

 colour : a shining brown spot between the eyes which are black : 

 feelers bright pale red, pale yellow at the base : chest hoary : breast 

 white, clothed with white hairs : abdomen tawny, clothed with 

 short white hairs ; its back has a broad piceous band at the base, 

 and a spot on the fourth segment ; and all the following segments 

 are piceous, with the exception of their hind borders : legs tawny ; 

 tips of the feet piceous : wings with a slight tawny tinge, especially 



